the sum of two numbers is 18 . the difference of the two numbers is -2 find the numbers

Answers

Answer 1

a and b is a numbers
a + b = 18
a - b = -2

2a = 16
a = 8

8 + b = 18
b = 10

Related Questions

"how many terms are there in the algebraic expression""

Answers

so in this quistoon that you are asking there is 6 in here because you didnt show the problem so i cant help you out

Michael sold his house for $548,900, which was 160% of the amount he paid for it. Calculate the amount he paid for the property.

Answers

That would be 548,900 / 1.6 = $343,062.50

anyone help me please!
A stereo listed for $350 is on sale for 20% off the list price. The sales tax is 6%. What total price does a customer pay for the stereo if she/he buys it on sale?
1 $324.00
2 $259.00
3 $262.20
4 $296.80
5 $301.00

Answers

The answer would be 296.80.Hope this helps!

20% subtracted from $350 leaves you with $280

then you need add 6% onto the price

Im not sure if youre supposed to calculate 6% of the original price or the price with 20% off

tax of normal price + discounted price= $301
tax of discounted price + discounted price= $296.60

Your answer should be E since $301 is an answer choice

Outlet malls sell goods _____

Answers

at a discounted price

1. at a discount

2. add all the items together at their sales cost then add salves tax

3. $26.75

4. $66.23

What percent is 6 out of 30? 2% 6% 20% 30%

Answers

6 is 20 percent of 30

The answer is 20%. Hope I helped

45+5/6x=50
need to find x and math for x

Answers

45 + 5/6x = 50

5/6x = 50 - 45

5/6x = 5

5x = 5 * 6

5x = 30

x = 6

hope that helps, God bless!

The solution of expression is, x = 6

We have to give that,

An expression to simplify as,

⇒ 45 + 5/6x = 50

Now, Simplify the expression by combining like terms,

⇒ 45 + 5/6x = 50

Subtract 45 on both sides,

⇒ 45 + 5/6x - 45 = 50 - 45

⇒ 5/6x = 5

Multiply by 6 on both sides,

⇒ 5x = 5 × 6

⇒ 5x = 30

Divide by 5 on both sides,

⇒ x = 30/5

⇒ x = 6

So, The solution is, x = 6

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how many times can 36 go into 300

Answers

8.333333 so lets just say 8

36 can go into 300 around 8 times. 8.3 to be more accurate.

A car is driving at the speed of 58 km/h.How much time will it take to drive for distance 32 miles?

Answers

53 Minutes and 16 seconds

A person who is 6ft tall walks away from a streetlight. When the person is 15 feet away from the light, the tip of his shadow is 5 feet in front of him. Find the height of the streetlight

Answers

We essentially have a ratio here:
[tex]\frac{shadow}{actual}[/tex]

Since we know the ratio is going to stay constant at [tex]\frac{5}{6}[/tex], we can use this to find the height of the lamp along with the information that the total distance from the lamp to the tip of his shadow is 20:
[tex]\frac{5}{6}=\frac{20}{h}[/tex]
[tex]5h=120[/tex]
[tex]h=24[/tex]

Evaluate the dot product a⃗ ⋅b⃗ of a⃗ =3i^−8j^ and b⃗ =−2i^−6j^.

Answers

The "dot product" of two vectors has several different formulas.

Since you are given the x- and y-coordinates of both vectors a and b, we can apply the formula

a dot b = ax*bx + ay*by, where ax=x-component of vector a, by=y comp of vector b, and so on.

So, for the problem at hand, ax * bx + ay * by becomes

3(-2) + (-8)(-6) = -6 + 48 = 42 (answer). Note that the dot product (or "scalar product" is itself a scalar.

Final answer:

The dot product of vectors a⃗ =3i^−8j^ and b⃗ =−2i^−6j^ is calculated by multiplying the corresponding components of the vectors and summing the results, giving a final dot product of 42.

Explanation:

The dot product of two vectors a and b is calculated by multiplying the corresponding components of the vectors and summing the results. So, given the vectors a⃗ =3i^−8j^ and b⃗ =−2i^−6j^, the dot product can be found as follows:

a⃗ ⋅b⃗ = (a_x * b_x) + (a_y * b_y)

Therefore, substituting the known values: a⃗ ⋅b⃗ = (3 * -2) + (-8 * -6) = -6 + 48 = 42

So, the dot product a⃗ ⋅b⃗ for vectors a⃗ =3i^−8j^ and b⃗ =−2i^−6j^ is equal to 42.

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Complete each statement regarding an angle θ and its reference angle theta hat using radian measure. (Assume 0 ≤ θ < 2π. Give your answers in terms of θ.) (a) If θ is in QI, then theta hat = . (b) If θ is in QII, then theta hat = . (c) If θ is in QIII, then theta hat = . (d) If θ is in QIV, then theta hat = .

Answers

The reference angle is simply the acute angle between the terminal side and the x-axis

The terminal angles in the four quadrants are

[tex]\bar \theta = \theta[/tex].[tex]\bar \theta = \pi - \theta[/tex].[tex]\bar \theta = \theta - \pi[/tex].[tex]\bar \theta = 2\pi - \theta[/tex]

The given parameters are:

[tex]\theta \to[/tex] reference angle

[tex]\bar \theta \to[/tex] terminal angle

(a) If the reference angle is in the first quadrant

In the first quadrant, the x-axis is at [tex]0\ rad[/tex]

So, the terminal angle is:

[tex]\bar \theta = \theta - 0[/tex]

[tex]\bar \theta = \theta[/tex]

(b) If the reference angle is in the second quadrant

In the second quadrant, the x-axis is at [tex]\pi \ rad[/tex],

While the reference angle is between [tex]\frac{\pi}{2}[/tex] and [tex]\pi \ rad[/tex]

It means that, we have to subtract the reference angle from the x-axis

So, the terminal angle is:

[tex]\bar \theta = \pi - \theta[/tex]

Here, the x-axis is still at [tex]\pi \ rad[/tex],

But the reference angle is between [tex]\pi \ rad[/tex] and [tex]\frac{3}{2}\pi[/tex]

It means that, we have to subtract the x-axis from the reference angle.

So, the terminal angle is:

[tex]\bar \theta = \theta - \pi[/tex]

(d) If the reference angle is in the fourth quadrant

Here, the x-axis is at [tex]2\pi \ rad[/tex]

And the reference angle is between [tex]\frac{3}{2}\pi[/tex] and [tex]2\pi \ rad[/tex]

It means that, we have to subtract the reference angle from the x-axis.

So, the terminal angle is:

[tex]\bar \theta = 2\pi - \theta[/tex]

See attachment for illustration of terminal angles

Answers

The solution is optio D.

0     4
- 6     1
3    -4

Rember row times columns.

=>
a11 = 4*0 + 0*(-3) = 0

a12 = 4*1 + 0*1 = 4 + 0 = 4

a21 = -1*0 + 2*(-3) = 0 - 6 = -6

a22 = -1*1 + 2*1 = -1 + 2 = 1

a31 = -3*0 + (-1)*(-3) = 0 + 3 = 3

a32 = -3*1 + (-1)*1 = -3 - 1 = -4

y=-2/5x+4 in standard form

Answers

1、 -10
2、 4
4、 Y=-2/5x+4

What are the quotient and remainder when
a.19 is divided by 7?
b.−111 is divided by 11?

Answers

a. quotient when 19÷7 = 2
the remainder = 5

b quotient = -10
remainder = 1

Solve the absolute value equation. |x| = –45

Answers

Absolute value of x=-45 is x=45 Absolute value just means that you make everything positive.

Find the simple interest. Principal $200 rate 13% time 33 months. The interest is $ nothing. (Round to the nearest cent.)

Answers

there are 12 months in a year, so in 33 months, there are 33/12 years then.

[tex]\bf \qquad \textit{Simple Interest Earned}\\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\\ P=\textit{original amount deposited}\to& \$200\\ r=rate\to 13\%\to \frac{13}{100}\to &0.13\\ t=years\to &\frac{33}{12} \end{cases} \\\\\\ I=200\cdot 0.13\cdot \cfrac{33}{12}[/tex]

Solve the equation by the zero factor property 6x^2 -5x -6=0

Answers

First, you need to factor the polynomial.

I'll use the trial and error method.

6x^2 - 5x - 6 = 0

6 has factors
6 and 1
3 and 2

I'll try 3 and 2 first.

(3x     )(2x      ) = 0

Now we need to factor -6.
-6 factors into
-1, 6
-6, 1
-2, 3
-3, 2

Now we need to see if one of these pairs of factors placed correclty will factor the trinomial.

(3x + 2)(2x - 3) = 0

That did it.

Now we use the zero factor property.

3x + 2 = 0 or 2x - 3 = 0

3x = -2      or 2x = 3

x = -2/3     or x = 3/2

on a certain day the temperature in Seattle was -1 degrees C and the temperature in the Hudson was 18 degrees C is how many degrees lower was the temperature in Seattle

Answers

18-(-1) or 18+1=19 degrees lower

The temperature in Seattle was 19 degrees lower than in the Hudson.

we subtract the temperature of Seattle from the temperature of the Hudson:

18°C - (-1°C) = 19°C

Therefore, the temperature in Seattle was 19 degrees lower than the temperature in the Hudson.

What is 129,543 rounded to the nearest ten thousand

Answers

129,543 rounded to the nearest ten thousand is 130,000

hope this helps

129,543 rounded to the nearest ten thousand is 130,000. Hope this helps! Can u plz mark me as brainliest? I really need it !

How much greater is the area of a square with a side length of 9 inches than the area of a circle with a radius of 3 inches?

Answers

The area of the square is 81 sq in, and the area of the circule is (3.14)(3 in)^2, or approx 3.14(9) sq in, or approx 28.27 sq in.

Subtract: 81 sq in - 28.27 sq in = approx. 52.73 sq in.

The difference is 52.73 sq in; the square is larger, the circle smaller.

family drinks 1 3/4 gallons of milk every 4 1/2 days what is the unit rate of milk per day

Answers

[tex]\bf \cfrac{milk}{day}\qquad \cfrac{1\frac{3}{4}}{4\frac{1}{2}}\implies \cfrac{\frac{1\cdot 4+3}{4}}{\frac{4\cdot 2+1}2}\implies \cfrac{\quad \frac{7}{4}\quad }{\frac{9}{2}}\implies \cfrac{7}{\underline{4}}\cdot \cfrac{\underline{2}}{9}\implies \cfrac{7}{2}\cdot \cfrac{1}{9}\implies \cfrac{7}{18}[/tex]

which gives us a quotient of about 0.39 gallons of milk for one day.

A scuba diver swimming at the Deppe shown, and then swim 0.5 feet toward the surface every three seconds. What is the location of the scuba diver, relative to the surface, after 15 seconds?

Answers

For every 3 seconds, the scuba diver dives 0.5 feet
after 15 seconds = your answer

3 x 5 = 15
0.5 x 5 = your answer

your answer = 2.5

2.5 is your answer

hope this helps

Reina and Sam are multiplying (84)5 (73)9. Reina's Work Sam's Work (84)5 (73)9 = 84 + 573 + 9 = 89712 (84)5 (73)9 = 84⋅573⋅9 = 820727 Is either of them correct? Explain your reasoning.

Answers

None of this above 84⋅573⋅9 84*5*73*9 ( )= multiplication all of them should multiply

A driveway is 40 yards long. About how many meters long is it? Round to the nearest hundredth

Answers

The driveway is 36.576 meters long.

Two right triangles are congruent. Find the value of x.
right triangle with angle of 33 degrees, right triangle with angle of 9 x minus 15 degrees
Select one:
a. 5
b. 6
c. 8
d. 12

Answers

Given that the two right triangles are congruent, there are two possibilities.

9x - 15 is equal to the angle 33° or 9x - 15 is equal to the other angle of the first triangle.

Let's probe with the first option:

9x - 15 = 33 => 9x = 33 + 15 = 48

=> x = 48 / 9 = 5,33, which is no in the list of options.

Now, let's probe the second option.

The other angle of the first right triangle is 90° - 33° = 57°

Then, 9x - 15 = 57

=> 9x = 57 + 15 = 72

=> x = 72 / 9 = 8

Which is the option c. 8.

So, I am sure that if you have a figure it will be compatible with that answer, else yet the procedure to find the answer is what I have used here.

Answer: option c. 8

Caroline bought 20 shares of stock at 10 ½, and after 10 months the value of the stocks was 11 ¼. If Caroline were to sell all her shares of this stock, how much profit would she make? A. $210 B. $10 C. $15 D. $225

Answers

20 shares at 10 1/2 (or 10.5) = 20 * 10.5 = 210
20 shares at 11 1/4 (or 11.25) = 20 * 11.25 = 225

so the profit made would be : 225 - 210 = $ 15 <==

F=J+Jrt solve following formula for t

Answers

F=j+jrt
F-j=jrt
t=(F-j)/jr

Final answer:

To solve the formula F=J+Jrt for 't', first, subtract 'J' from both sides to get F-J=Jrt. Then, divide both sides by 'Jr', for the final equation for 't' = (F-J)/Jr.

Explanation:

This physics-related mathematics question is asking you to solve the given formula F=J+Jrt for 't'. To isolate 't', we first want to eliminate 'J' from the right side. We do this by subtracting 'J' from both sides of the equation. This gives us F-J=Jrt.

Then, we divide both sides by 'Jr'. When we do this, we are left with t=(F-J)/Jr as the rearranged formula with 't' as the subject. This results in 't' being isolated in the equation, which answers the student's question.

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a large bag of cashews weighs 8 1/3 pounds one serving is 1/3 pound how many servings are in the bag

Answers

A large bag of cashews weighs is 8(1/3) pounds = which is 25/3 in improper fraction form
one serving bag is 1/3
now, how many servings are in the bag?
=> 25/3 ÷ 1/3
=> 25/3 X 3/1 (changing division into multiplication form)
=> 25, bag are in serving .

how much apple juice does each person get if 6 people share 2 and 2/3 quarts equally

Answers

First convert 2 2/3 to an improper fraction. That comes out to 8/3. Then multiply 8/3 with the inverted fraction 1/6. It comes out to be 8/18, but most require simplification, which is 4/9 quart per person.

The fraction of apple juice shared by 6 people is A = 4/9 of the apple juice

What is a Fraction?

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.

Given data ,

Let the fraction of apple juice shared by 6 people be A

Let the total number of people be represented as n = 6 people

Now , the fraction of total amount of apple juice = 2 2/3

The fraction of total amount of apple juice T = ( 8/3 ) of apple juice

And , the equation is

A = fraction of total amount of apple juice T / total number of people n

On simplifying , we get

A = ( 8/3 ) / 6

A = ( 8/18 )

Divide by 2 on both numerator and denominator of the fraction , we get

A = 4/9 of the apple juice

Therefore , the value of A is 4/9

Hence , the fraction of apple juice is ( 4/9 ) equally

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there are 3/4 of a pizza left over from last night how many 1/8 portions are there

Answers

3/4 of the pizza is left

3/4 = 6/8

There are 6 "1/8" portions left

hope this helps

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