Mathematics Middle School

A. Multiplication comes before division because in PEMDAS the M comes before D.

Answers

Answer 1
Multiplication and division have the precedence. We know which comes first because we go from left to right and which ever comes first is done first.
Answer 2

Students who use PEMDAS often think that multiplication must come before division but that's not necessarily the case. If division appears before multiplication when your reading the problem from left to right, do your division first and then move on to your multiplication.

Related Questions

D=m/v;solve for v please

Answers

V = M/D

First, you multiply over the V so that it is no longer in the denominator, and then you divide both sides by D to isolate V. 
 D = m/v
vD = m
 /D    /D
  v = m/D

Bobby knows that the perimeter of the original rectangle is 120 meters. He also knows that the perimeter of the reduced rectangle is 30 meters and the reduced length is 9 meters.
Not drawn to scale What is the width of the original rectangle?

Answers

Ok so here we can start of by finding the ratio of the original to the reduced which is 4:1. Then we can find out the width of the reduced which is 6. Finally, all you have to do is multiply 6 by 4 and you get the answer which is 24.

Answer:

Width of the original rectangle is [tex]24 \\[/tex] meters

Step-by-step explanation:

Perimeter of reduced rectangle [tex]= 30\\[/tex] meters

Reduced length [tex]= 9 \\[/tex] meters

Reduced perimeter is equal to

[tex]2 ( Reduced width) + 2 (reduced length) \\2 (w) + 2 (l) = 30\\2 (w) + 2 (9) = 30\\w = 6\\[/tex]

The factor of reduction of perimeter of original rectangle

[tex]= \frac{30}{120} \\= \frac{1}{4} \\[/tex]

Width of reduced rectangle will be equal to [tex]\frac{1}{4} \\[/tex] the width of original rectangle

[tex]w = \frac{1}{4} * W\\6 = \frac{1}{4} * W\\\\W = 24 \\[/tex]

antonio runs 5 3/4 miles a day hes halfway through his run

Answers

2.875 is the answer
1/2 of 5 3/4 is 2.875 

Place brackets in the statements to make them true:

7-2² +3=28

2+2+2² =36

Answers

(7-2)^2+3=28

Check:
5^2+3
28
True

(2+2+2)^2=36

Check:
6^2
36
True

the library surveyed 240 people about their favorite type of movie if 15% of the people chose documentaries how many people chose documentaries

Answers

240 x 0.15 = 36 people chose documentaries 

find the value of 5⅔×40⅓ / 16¼

Answers

The answer is 8228/585

Your credit limit is $2,500 what is the max you should ever owe on this card?

Answers

Answer: $2,000

To calculate the max amount you should owe, multiply the credit limit by 80%. $2,500 * 80% = 2,000

how do you find the volume of a cylinder

Answers

V=pi r2.h
Basically you find your radius and height

If the expression is 3x+1 is equal to -7 for the some value of x, Then what is the value of the expression 6x+5 for the same value of X? Show the work that leads to your solution

Answers

3x+1=-7
3x = -8 subtract 1 from both sides to separate the x
X= -8/3 divide both sides by 3 to find the value of x


6(-8/3) + 5 replace x with the value of x that you found in the other equation
16 + 5 multiply 6 * (-8/3)
21 add 16+5
remember, you can do anything to an equation as long as you do it to both sides
3x+1=-7
minus 1 both sides
3x+1-1=-7-1
3x+0=-8
3x=-8
divide both sides by 3
[tex]\frac{3x}{3}=\frac{-8}{3}[/tex]
[tex]\frac{3}{3}x=\frac{-8}{3}[/tex]
[tex]1x=\frac{-8}{3}[/tex]
[tex]x=\frac{-8}{3}[/tex]

ok for 6x+5

6x+5
[tex]6(\frac{-8}{3})+5=[/tex]
[tex]\frac{-48}{3}+5=[/tex]
[tex]-16+5=[/tex]
[tex]-11[/tex]





[tex]x=\frac{-8}{3}[/tex] and [tex]6x+5=-11 \space\ for \space\ x=\frac{-8}{3}[/tex]

What is the lcd of 1/7 and 1/8

Answers

 the lcd of 1/7 and 1/8 is 56

7 x 8 = 56

hope it helps
7*8 is 56 so you would get 8/56 and 7/56
but yes 56 is the Icd

how do we know how much gravitational force objects have?

Answers

the weight of an object is determined by gravitational force, so the more it weighs, the more gravitational force it has

this is not to be mistaken with mass, which has nothing to do with weight. An objects mass is determined by the number of unit masses that make it up.
Final answer:

The gravitational force between two objects can be calculated using Newton's universal law of gravitation. This force is dependent on the masses of the objects and the distance between them, allowing us to calculate its value even for celestial bodies.

Explanation:

The gravitational force between two objects can be determined using Newton's universal law of gravitation. This law states that the force between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between them. It's represented by the equation: F = G×(M₁×M₂)/r², where F is the gravitational force, G is the gravitational constant, M₁ and M₂ are the masses of the two objects, and r is the distance between their centres.

For instance, if we look at the gravitational force exerted on us by the Earth, our weight is actually this force. It can be calculated using Earth's mass (approximately 6 x 10²⁴ kg) and its radius (approximately 6,371 kilometres).

With masses in kilograms and distance in meters, the gravitational attraction between two 1 kg masses separated by 1 meter would be an extraordinarily small value, approximately 6.673 x 10⁻¹¹ N. Despite its small magnitude, this force affects our everyday life and the motion of celestial bodies like moons, planets, stars, and galaxies.

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On Sunday,1/16 of the people who visited were senoir citizens,3/16 were infants,3/8 were children,and 3/8 were adults. How many of each group visited the zoo on Sunday?

Answers

Seniors:1
Infants:3
Children:6
Adults:6
senior = 1003 infants = 3009 children = 6018 adults = 6018

Find the distance between M(–2, 3) and N(8, 2).

a) 10
b) (image #1)
c) 8
d) (image #2)

Answers

You would use the distance formula and get square root of 101

The answer is b) (image #1)
Final answer:

The distance between points M(-2,3) and N(8,2) is sqrt(101) which is calculated using the distance formula. None of the provided choices match this answer.

Explanation:

The subject of this question is in the field of Mathematics, specifically involving the use of the Distance Formula in a coordinate plane. The distance between two points in a plane, Point M(-2, 3) and Point N(8, 2) can be calculated using the formula:

D = sqrt[(x2-x1)² + (y2-y1)²]

Substituting the given coordinates, we get:

D= sqrt[(8-(-2))² + (2-3)²]

D= sqrt[(10)² + (-1)²] = sqrt[100+1] = sqrt[101]

None of the provided options in the choices seem to be correct, assuming 'sqrt[101]' is not among the image choices.

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What's -4q-(-8q)+10 ?? also if you understand how to combine like terms can you help me with the rest?

Answers

your answer will be 4q+10

The simplified expression is 41 + 10.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

-4q - (-8q) + 10

-4q + 8q + 10

Combine like terms.

4q + 10

Thus,

The simplified expression is 41 + 10.

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Help pls!!!! And I will give pizza forever!!!

Answers

The number of red  beads are increasing by 2  for each new pattern
The next number of reds will be 12.  ( in patern 5)

number of blue beads in pattern 5 will be 15 ( increasing by 3 )

nth term for red  = 4 + 2 (n-1)  ( its an arithmetic sequence)

nth term for blue =  3 + 3(n - 1)   - as above ,arithmetic.

Total beads in pattern 45 is

No. red beads in pattern 26   = 4  + 2(26-1)  = 4 + 50 = 54
No  blue beads in pattern 60 =  3 + 3(59)  =  180

Total number of beads in pattern 45 is:-

 4 + 2(44) + 3 + 3(44)  =   227 


Are points A, C, D, and F coplanar? Explain.

a) Yes; they all lie on plane P.
b) No; three lie on the same face of the pyramid and the fourth does not.
c) Yes; they all lie on the same face of the pyramid.
d) No; they are not on the same line.

Answers

Answer: Choice B) 

The points A, C and D form a triangle which is the front face you see in the pyramid. Point F is not on this triangle at all. Point F is towards the back at the base of the pyramid away from this front face. So we consider A,C,D,F collectively as a whole to be not coplanar. If we ignored the point F, then we can say that A,C,D are coplanar. 

The points A, C, D, and F are not coplanar points.

What are the coplanar points?

The points that are on the same plane is called coplanar points.

Here, a square pyramid is drawn on a plane.

Points A, C, D are three vertices of a side of the pyramid.

Hence, points A, C, D are coplanar.

However, the point F is the vertex of the opposite side triangle of the square pyramid.

Therefore, the point F is not on the same plane of points A, C, and D.

Hence, points A, C, D, and F are not coplanar.

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What is the value of 6 in 968

Answers

The value of the 6 the tenths. The 8 would be the ones, and the nine would be the hundreds. Hope I helped!
161.333333333333333 is the answer for the value of 6 in 968

Solve all questions please!

x = 3y solve for y

m + 5n = p solve for m

12r - 6 = t solve for r

21 = cd + e solve for d

h/j = 15 solve for j (that is a fraction. h over j)

f - 7/g = h solve for f (also a fraction. f - 7 over g)

Answers

the answer that have the red border are the answer to the letter the exercise asks for. hope it helps!
Greetings

Use the rule y = -x + 7 to fill in the blank.

If (1, y) is on the graph, then y =

THANK YOU!

Answers

Answer:

6

Step-by-step explanation:

-1 + 7 = 6

The required value of y is 6 which is determined by the substituting the value of x=1 in t with the rule y = -x + 7.

What exactly is a linear equation?

A linear equation is one in which the greatest power of the variable is always one.

The following linear rule is provided to us:

⇒ y = -x + 7

We are asked to calculate the value of y if the point (1, y) is located on the graph of (i).

We are aware that If the point (1, y) is on the graph of equation I then the equation must be satisfied.

⇒ y = -x + 7

Substitute the value of x = 1 in the above equation,

⇒ y = -1 + 7

Apply the subtraction operation to get,

⇒ y = 6

As a result of the equation, we obtain y is 6.

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WHAT IS THE DIFFERENCE BETWEEN |-3| AND -3

Answers

The difference between the two is 3
|-3| is the absolute value of -3, meaning on the number line, it is the distance. -3 is just -3

what is 2 3/15 - 1 1/15 =

Answers

So to make it easier, I would first convert to improper fractions.

2 3/15 to an improper fraction is 33/15

1 1/15 to an improper fraction is 16/15

So now you can just subtract the numerators.

33-16 is 17.

So your answer is 17/15, or 1 2/15.

poster is shown below:

A rectangle is shown. The length of the rectangle is labeled 18 inches. The width of the rectangle is labeled 6 inches.

What are the dimensions if the poster is enlarged by a factor of seven over two ?

Answers

18*7/2 = 63
6 * 7/2 = 21

63 by 21

Hope this helps!

Answer:

the dude on top of me is 100% right

Step-by-step explanation:

What is a polynomial

Answers

A polynomial is a collection of terms that are separated by a plus or a minus sign. There a few types of polynomials.

Monomials have one term.
Binomials have two terms.
Trinomials have three terms.

All of these are classified as a polynomial.

Once you go over 3 terms, it's simply called a polynomial.

Enter the sum of the numbers as the product of their GCF and another sum. 35+40. The sum of the numbers as a product of their GCF.

Answers

75 is the sum of the product of their GCF

2n+5-n evaluate the expression for n=3.

Answers

2n+5-n
=2(3) +5- 3
= 6 + 5 - 3
= 8

hope it helps

Miko’s restaurant bill was $16. She used the expression 1.18(16) to find the total cost, including an 18% tip. Which expression is equivalent to the amount Miko paid? i really need help my grades depened on you

Answers

The tip would be $2.88 the total is $18.88

Answer: $18.88

Step-by-step explanation:

What is the solution for 2d+1/6=6(1/3D+1)

Answers

2d + 1/6 = 6(1/3d + 1).....distribute
2d + 1/6 = 2d + 6
2d - 2d = 6 - 1/6
0 = 36/6 - 1/6
no need to finish...if it ends with an untrue statement with no variables, then there is no solution.

This has NO SOLUTION

Subtract 5x+4 from 2x-4 simplify if possible

Answers

5x+4 - (2x -4)
5x + 4 - 2x +4
3x + 8

Hope this helps!
The answer is 3x.
I hope this helps.

7/9 Has how many 1/3s in it?

Answers

7/9 only has 2 thirds in it

Manny has 8 photo albums. There are 67 pictures in each album.About how many photos does manny have?

Answers

She has about 560. if you round 67 to 70 then multiply you get 560. Hope i could help

About 8.375 because I have to divide
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