(1.6z+4) -4(-0.5+5z) no parentheses

Answers

Answer 1

Answer:

-18.4z+6

Step-by-step explanation:


Related Questions

Quadrilateral ABCD has 2 sets of parallel sides, 4 congruent angles, and 4 congruent
sides. What are all the classifications for Quadrilateral ABCD? Mark all that apply.

Parallelogram
Rectangle
Trapezoid
Square
Kite
Rhombus

Answers

Answer:

It can be a parallelogram, a square, a rectangle and rhombus too.

Answer:

There are many special types of quadrilateral.

A parallelogram is a quadrilateral in which both pairs of opposite sides are parallel .

A parallelogram also has the following properties:

Opposite angles are congruent;

Opposite sides are congruent;

Adjacent angles are supplementary;

The diagonals bisect each other.

A rectangle is a parallelogram with four right angles, so all rectangles are also parallelograms and quadrilaterals. On the other hand, not all quadrilaterals and parallelograms are rectangles.

A rectangle has all the properties of a parallelogram, plus the following:

The diagonals are congruent.

A rhombus is a parallelogram with four congruent sides. The plural of rhombus is rhombi . (I love that word.)

A rhombus has all the properties of a parallelogram, plus the following:

The diagonals intersect at right angles.

A square can be defined as a rhombus which is also a rectangle – in other words, a parallelogram with four congruent sides and four right angles.

A trapezoid is a quadrilateral with exactly one pair of parallel sides. (There may be some confusion about this word depending on which country you're in. In India and Britain, they say trapezium ; in America, trapezium usually means a quadrilateral with no parallel sides.)

Step-by-step explanation:

you should be able to find your answer in this i rlly hope it helps you

Suppose we want to choose 2 objects, without replacement from the objects pencil, eraser and desk

Answers

The question is about finding the number of ways to choose 2 items without replacement from a set of 3 items using combinatorics, and there are 3 different ways to do so.

The question deals with the concept of combinations in probability and combinatorics. When choosing 2 objects from a set of 3 items (a pencil, an eraser, and a desk) without replacement, we can use the combination formula C(n, k) = n! / (k!(n-k)!), where n is the total number of items and k is the number of items to choose.

In this case, we have 3 items and we want to choose 2, so we plug the values into the formula to get the number of combinations without replacement.

Using the combination formula, C(3, 2) = 3! / (2! × (3-2)!) = 3.

Therefore, there are 3 different ways to choose 2 objects from the set of a pencil, an eraser, and a desk.

Need to show my work

Answers

Answer:

[tex]\large\boxed{x=\dfrac{5}{4},\ y=\dfrac{15}{16}}[/tex]

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}y=\dfrac{3}{4}x&(1)\\\dfrac{5}{2}x+2y=5&(2)\end{array}\right\\\\\text{Substitute}\ (1)\ \text{to}\ (2):\\\\\dfrac{5}{2}x+2\left(\dfrac{3}{4}x\right)=5\\\\\dfrac{5}{2}x+\dfrac{3}{2}x=5\\\\\dfrac{5+3}{2}x=5\\\\\dfrac{8}{2}x=5\\\\4x=5\qquad\text{divide both sides by 4}\\\\x=\dfrac{5}{4}[/tex]

[tex]\text{Put the value of}\ x\ \text{to (1)}\\\\y=\dfrac{3}{4}\cdot\dfrac{5}{4}\\\\y=\dfrac{15}{16}[/tex]

Answer:

Step-by-step explanation:

y = 3x/4 .........(1)

5x/2 + 2y = 5 .......(2)

Putting (1) into (2)

5x/2 + 2(3x/4) = 5

5x/2 + 3x/2 = 5

Multiply each term by 2

5x + 3x = 10

8x = 10

x = 10/8

x = 5/4

x = 1 1/4

And y = 3x/4

y = 3(5/4) ÷ 4

y = 15/4 ÷ 4

y = 15/(4×4)

y = 15/16

find the approximate area of the shaded region below, consisting of a right triangle with a circle cut out of it. Use 3.14 as an approximation for pi.​

Answers

Answer:

2794 m^2

Step-by-step explanation:

Area of Triangle - Area of Circle

1/2bh - piR^2

4050 - 1256

= 2794

The approximate area of the shaded region is, 2794 m²

What is Area?

Area is defined as the total space taken up by a flat (2-D) surface or shape of an object.

Given a right triangle with a circle cut out of it,

Area of circle = π*Radius²

Area of triangle = 1/2*base*height

Area of circle = π*20² = 1256 m²

Area of triangle = 1/2*90*90 = 4050 m²

Area of the shaded region = Area of triangle - Area of circle

Area of the shaded region = 4050 - 1256 = 2794 m²

Hence, The approximate area of the shaded region is, 2794 m²

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What is the product?
(-3s+2t)(4s-t

Answers

-12s squared -2t squared + 11st

Answer:

-12s^2 + 11st - 2t^2

Step-by-step explanation:

17 more than Rick's score is 45.
Use the variable r to represent Rick's score.

Answers

45-17 = ricks score

Here is the equation representing Rick's score:

17 + r = 45

Solving for r, we get r = 45 - 17.

So, what is 45 - 17?

A builder is putting floor tiles on each of the 15 kitchen floors in an apartment building. Each floor uses 40 tiles. Each floor tile costs $7.

How much does the builder spend on the floor tiles?

Answers

Answer:

$4200

Step-by-step explanation:

15 floor times 40 tiles

15 X 40 = 600 tiles

so 600 tiles times 7 dollars

600 X 7 = 4200 dollars

Final answer:

To find the total cost of floor tiles for 15 kitchen floors, multiply the total number of tiles by the cost per tile. The builder will need 600 tiles (15 floors × 40 tiles) and with each tile costing $7, the total cost comes to $4200.

Explanation:

The student is asking about the total cost of floor tiles needed for an apartment building project. To calculate this, we need to find the total number of tiles used and then multiply this by the cost per tile. There are 15 kitchen floors, with each floor using 40 tiles. Each tile costs $7.

First, let's find out how many tiles are needed in total:

Number of floors × Number of tiles per floor = Total number of tiles

15 floors × 40 tiles per floor = 600 tiles in total

Next, let's calculate the total cost:

Total number of tiles × Cost per tile = Total cost

600 tiles × $7 per tile = $4200

Therefore, the builder spends a total of $4200 on floor tiles for the 15 kitchen floors.

The x- and y-axes divide the coordinate plane into four regions. What are they called?

Answers

Answer:

Quadrent One Two Three and Four

Step-by-step explanation:

Final answer:

The x- and y-axes divide the coordinate plane into four regions, called quadrants, named Quadrant I, II, III, and IV. They are numbered counterclockwise, with different quadrants containing points with different combinations of positive and negative x- and y-values.

Explanation:

The x- and y-axes of the coordinate plane divide the entire plane into four regions. These regions are known as quadrants. They are named as Quadrant I, Quadrant II, Quadrant III, and Quadrant IV.

The quadrants are numbered in a counterclockwise direction. Quadrant I, on the top right, contains all points with positive x- and y-values. Quadrant II, on the top left, contains all points with negative x-values and positive y-values. Quadrant III, on the bottom left, contains all the points with negative x- and y-values.

Last, Quadrant IV on the bottom right contains all the points with positive x-values and negative y-values.

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The sum of 19 data values is 2,375. What is the average of the data values?

Answers

Answer:

125

Step-by-step explanation:

2375/19

For which value of x is the equation 3x + x = 2x + 24 true?
A) 3
B) 4
C) 6
D) 12
do you guys know the answer?

Answers

Answer:

D) 12

Step-by-step explanation:

3x+x=2x+24

4x=2x+24

4x-2x=24

2x=24

x=24/2

x=12

2 litre 450 ml mustard oil was used from a can of 5 litre in a month. How much is left? For how many months in all can it be used?

Answers

Answer:

Step-by-step explanation:

1 liter = 1000 ml....so 2 liters and 450 ml = (2* 1000) + 450) = 2450 ml

5 liters = (5 * 1000) = 5000 ml

5000 ml - 2450 ml = 2550 ml or 2 liters and 550 ml <== this is how much is left

so he used 2450 ml in 1 month....and he has 5000 ml

5000/2450 ≈ 2.04 months <===  it will be all used up

Answer:

Step-by-step explanation:

1 litre = 1000 ml

5 liter = 5 * 1000 = 5000 ml

2 liter 450 ml = 2 liter + 450 ml = 2000 ml + 450 ml = 2450 ml

Oil left = 5000 - 2450 = 2550 ml

2550 - 2450 = 100 ml

4 liter 900ml is used in two months and 100 ml will be left over

Which algebraic expression is a product with a factor of 6?
O A. 6x-9
O B. 9x=6
O C. 6+x-9
O D. 6(x+5)
SUBN

Answers

Option D is correct.

A carpenter has a board 2 meters long. She needs to cut it into 8 equal pieces. How many centimeters long will
each piece be?
1600



Answers

Answer:

400

Step-by-step explanation:

1 meter = 100 centimeters

8/2 = 4

4 x 100 = 400

Answer:

Step-by-step explanation:

1 meter = 100 centimeters.....so 2 meters = 200 cm

split into 8 equal pieces....200 / 8 = 25 cm <=== each piece is 25 cm

Which of the following is true about slings?
Select the best option
Alloy steel chains are impeyvious to damage.
Slings should be inspected before each use.
Damaged slings should be removed from service at the end of the work day

Answers

The correct answer is; Slings should be inspected before each use.

Further explanation:

Prior to starting the workday, each sling should be visually inspected by the operators. The slings need to be inspected for stretching, gouges, and excessive wear. Also, any nicks in the sling should be checked for. If any of these things are on the slings, the sling needs to be taken out of service immediately. This should be done before starting work.

There are six different types of chains that are used, they are;

Metal meshWire ropeChainNatural fiber ropeSynthetic fiber ropeSynthetic web

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The correct statement about slings is that they should be inspected before each use. Damaged slings should be removed immediately, not at day's end. Alloy steel chains aren't impervious to damage.

Out of the given options, the true statement about slings is that 'Slings should be inspected before each use'. To ensure the safe operation of a sling, it's crucial to examine it for any damages or wear and tear before every use.

Slings are typically used to lift or move heavy objects, and any damages can lead to accidents or equipment failure. On the other hand, the statement about alloy steel chains is incorrect as they are not impervious to damage.

Lastly, damaged slings should not be waited until the end of the day to be removed from service, they should be removed immediately upon discovering the damage.

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Which function models the sequence -5, -7,-9, -11, ...?

Answers

Answer:

-13

Step-by-step explanation:

add two but put a negative .

X divided by 4 equals -7. What is x?

Answers

The required value of x that satisfies the equation x/4 = -7 is x = -28.

To solve for x when x divided by 4 equals -7, we can follow these steps:

Start with the equation: x/4 = -7.

To isolate x, we want to get rid of the division by 4. We can do this by multiplying both sides of the equation by 4:

(4)(x/4) = (4)(-7).

The 4 on the left side cancels out with the 4 in the denominator, leaving us with:

x = -28.

Therefore, the value of x that satisfies the equation x/4 = -7 is x = -28.

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Final answer:

The value of x in the equation x divided by 4 equals -7 is -28. To find x, we multiply both sides of the equation by 4, resulting in x=-28. Substituting back into the original equation confirms the solution is correct.

Explanation:

To solve the equation x divided by 4 equals -7, we want to find the value of x. We can do this by performing the inverse operation of division, which is multiplication. So if x divided by 4 is -7, we can multiply both sides of the equation by 4 to solve for x:

x / 4 = -7
4 * (x / 4) = 4 * (-7)
x = -28

So, the value of x is -28. As a check, you can substitute -28 back into the original equation:

-28 / 4 = -7

Which simplifies to:

-7 = -7

This confirms that the solution is correct since it results in an identity, showing that the left side of the equation is equal to the right side.

What is the sum of 197+413 in expression

Answers

Answer:

197+413

=197+413

=610

Step-by-step explanation:

this is how i was taught

Five times a number , subtracted from ten , is triple the number . Find the number.

Answers

The value of the variable number x will be 1.25.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

Let x be the number. Then the Five times a number is written as 5x. Then the expression will be

⇒ 10 - 5x

The triple number is written as 3x. Then the equation is given below.

10 - 5x = 3x

Simplify the equation, then we have

10 = 3x + 5x

10 = 8x

x = 10 / 8

x = 1.25

The value of the variable number x will be 1.25.

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Final answer:

The algebraic equation set up from the problem 10 - 5x = 3x leads us to find that x = 1.25. Thus, the number in question is 1.25.

Explanation:

The question describes an algebraic problem where we are trying to find a particular number. According to the problem, five times this number, when subtracted from ten, equals three times the number. To find the number, we set up the equation based on the given information:

10 - 5x = 3x

Where x is the number we are trying to find. Now, we will solve for x:

Add 5x to both sides of the equation to get all x terms on one side:

10 = 3x + 5x

Combine like terms on the right side:

10 = 8x

Divide both sides by 8 to solve for x:

x = 10/8

Simplify the fraction:

x = 1.25

So, the number we were seeking is 1.25.

If names a major arc of a circle, then must be a a) minor arc b)major arc c) semicircle

Answers

the answer is a that should be it !

Answer:

should be a

Step-by-step explanation:

7 movie tickets cost $25.00

Answers

Answer:ok boomer

Step-by-step explanation:

If you are looking for the price per ticket it is $3.57, 25 divided by 7 is equal to 3.5714 then round it to 3.57


What is the length of the radius, r?

Answers

The length of the radius would be 18cm long

Answer:

18 cm

Step-by-step explanation:

The circumference (C) of a circle is calculated as

C = 2πr ← r is the radius

Given

C = 36π, then

2πr = 36π ( divide both sides by 2π )

r = [tex]\frac{36\pi }{2\pi }[/tex] = 18

What is the values of x and y?

(5x) + (9y)

Answers

Answer:

x=5 y=9

Step-by-step explanation:

hope this helps :) have a nice day :) :) :)

M - 2 3/4 = 6 1/2 what does the m equal

Answers

Answer:

Step-by-step explanation:

6 1/2 + 2 3/4=M

M=9 1/4

The tables below show four sets of data:

Set A
x
1
2
3
4
5
6
7
8
9
y
10
9
8
7
6
5
4
3
2
Set B
x
1
2
3
4
5
6
7
8
9
y
3
4
5
6
7
8
9
10
11


Set C
x
1
2
3
4
5
6
7
8
9
y
8
6
5
4
3.5
3
2.5
2
2
Set D
x
1
2
3
4
5
6
7
8
9
y
1
2.5
2.5
3
4
5
6
8
9


For which set of data will the scatter plot represent a positive linear association between x and y?

Set A
Set B
Set C
Set D

Answers

Answer: Set A

Step-by-step explanation:

Because both x and y have to have a even number.

Example: (1,2) (2,4)...ect

Use addition to solve the linear system of equations.
y = -3x + 1
y = 2x - 4

Please show me step-by-step, I'm having a very hard time with this and I'm behind on work

Answers

since both equal y, they have to equal each other. set them equal to each other as -3x+1=2x-4. add four to both sides to get -3x+5=2x. add -3x to both sides to get 5=5x. divide both sides by one to get x=1.

The sum of two numbers is 52. The larger number is 8 more than the smaller number. What are the numbers?

Answers

Answer:

The smaller number is 22

The larger number is 30

Step-by-step explanation:

L + S = 52

L = S + 8

Set both equations equal to L.

S + 8 = -S + 52

+S        +S

2S + 8 = 52

     - 8    - 8

2S = 44

S = 22

To find the larger number, plug 22 in as S into the equations.

L = 30

Final answer:

The two numbers are 22 and 30, with the smaller number being 22 and the larger one being 30 (which is 8 more than the smaller number).

Explanation:

The sum of two numbers is 52, and the larger number is 8 more than the smaller number. Let's denote the smaller number as x and the larger number as x + 8. The equation to represent their sum is:



x + (x + 8) = 52



By combining like terms, the equation simplifies to:



2x + 8 = 52



Subtract 8 from both sides of the equation to isolate the term with x:



2x = 44



Divide by 2 to solve for x:



x = 22



Now that we have the value of the smaller number, we can find the larger number:



x + 8 = 22 + 8 = 30



So, the two numbers are 22 and 30.

what value of b will make the system 7=2x+7 and y=2.5x+b intereect at the point (-6, -5)

Answers

Answer:

The value of b for the intersection of two lines at given points is 4

Step-by-step explanation:

Given as :

The two line equations are

y = 2 x + 7                ..........A

And

y = 2.5 x + b            ............B

Since, The two lines are intersecting at point  [tex]x , y[/tex] = - 6 , - 5

Now Solving equation A and B we get

2 x + 7 = 2.5 x + b

Or, 7 - b = 2.5 x - 2 x

Or, 7 - b = . 5 x

∵ intersecting points are x , y = - 6 , - 5

putting the value of y from points

i.e 7 - b = . 5 × ( - 6 )

Or, 7 - b = 3

Or, b = 7 - 3

∴  b = 4

So, The value of b = 4

Hence, The value of b for the intersection of two lines at given points is 4 Answer

MD writes an order for 150 mg by mouth every 6 hours for 24 hours. pharmacy dispenses you with 75 mg per 3 ml. how many ml will you administer daily?

Answers

Answer:

24ml

Step-by-step explanation:

First, calculate the amount needed in mg for each day.

The rate given for each dose is 150mg every 6 hours. Since there are 24 hours in a day, divide the number of hours in a day by how often to give the medication to get the number of doses each day.

24 hours ÷ 6 hours = 4 doses daily

The total mg each day is the number of doses daily multiplied by the amount in each dose.

4 doses daily X 150 mg = 600mg daily

Calculate how many mg of medication are in 1 ml given by the pharmacy.

75mg ÷ 3ml = 25mg/ml

Divide the mg of medication daily by the concentration the pharmacy dispenses.

600 mg daily ÷ 25mg/ml = 24ml

You will administer 24ml daily.

Check by doing these steps backwards:

24ml per day gives 600 mg of medication because there are 25mg per 1 ml. 24ml X 25mg = 600mg

Each day you need to administer 150mg X (24h ÷ 6h) of medication.

150mg X 4 = 600mg, which is the correct amount.

Tina has $220 in her account. Cliff has $100 in his account. Starting in July, Tina adds $25 to her account on the first of each month, while Cliff adds $35 to his. How many dollars will they have in their accounts when the amounts are the same

Answers

Answer:

Both accounts will have $450

Step-by-step explanation:

Tina y= 25x+220

Cliff y= 35x+100

we can use substitution to solve this problem so the formatting would be:

25x+220=35x+100

subtract 25x from both sides

220=10x+100

Subtract 100 from both sides

120=10x

Divide both sides by 10

12=x

now that we have an x value we can plug it into either equation.

y=100+35(10)

y=100+350

y=450

The answer is 450 that’s how much it’ll be if they had the same

Use the expression -3/7+10

Answers

Answer:

a. Jake told the negative value of the expression which cannot be equivalent to the original expression.

b. 10 - [tex]$ \frac{\textbf{3}}{\textbf{7}} $[/tex] g

Step-by-step explanation:

a. The given expression is: [tex]$ \frac{-3}{7}g + 10 $[/tex]

Multiplying through out by -, we get:

[tex]$ - 10 + \frac{3}{7}g $[/tex] which was the expression given by Jake. Since, it is the negative of the original one, they cannot be equivalent.

b. [tex]$ -\frac{3}{7}g + 10 = 10 - \frac{3}{7}g $[/tex]

[tex]$ = \frac{70 - 3g}{7} $[/tex]

Hence, the answer.

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