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3 years ago

12

Jake and Hannah wash windows Jake charges $50 plus $2 per window hannah charges $20 plus $5 per window for how many windows wash

ed do they charge the same amount

1 answer:

AnnZ [28]3 years ago

8 0

10.
50+(2x)=20+(5x)
-20 -20
-2x -2x
30=3x
divide both sides by 3
10=x

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For f(x)=2x+1 and g(x)=x^2-7, find (f+g)(x)

labwork [276]

For this case we have the following functions:

$f (x) = 2x + 1\\g (x) = x ^ 2-7$

We must find the following sum of functions:

(f + g) (x)

By definition we have to:

$(f + g) (x) = f (x) + g (x)\\(f + g) (x) = 2x + 1 + x ^ 2-7\\(f + g) (x) = x ^ 2 + 2x-6$

So, we have to:

$(f + g) (x) = x ^ 2 + 2x-6$

Answer:

$(f + g) (x) = x ^ 2 + 2x-6$

3 0

4 years ago

What is the equation of the line shown in this graph? graph shown down below

Andrew [12]

Answer: $x = -2$

Step-by-step explanation:

In the given picture , the line is parallel to the y- axis and passing through (-2,2) and (-2 , -3).

The equation of line parallel to y-axis (has slope undefined) is given by

x= a , where a is the point on x-axis through which the line is passing .

For the given graph , the line is passing through x = -2.

Therefore , the equation of the given line = $x = -2$

Hence, the correct answer = $x = -2$

5 0

4 years ago

12. Will you miks the paint? Answers

wolverine [178]

The required proportion of the blue paint is 18 liters.

Given that,
The ratio of yellow and blue colors is 2:3
The proportion of the yellow color is 12 liters.
The proportion of blue color is to be determined.

<h3>What is the Ratio?</h3>

The ratio can be defined as the comparison of the fraction of one quantity towards others. e.g.- water in milk.

Let the proportion of the blue color is x,
Now, the ratio can be given as
12 / x = 2 / 3
x = 12 * 3 / 2
x = 18

Thus, the required proportion of the blue paint is 18 liters.

Learn more about Ratio here:

brainly.com/question/13419413

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The question given is incomplete, a proper question could be
A paint store mixes yellow and blue paint in a ratio of 2:3 to make green paint. If they used 12 liters of yellow paint, how many liters of blue paint were used?

7 0

2 years ago

Hi, I need help with this question.

elena-14-01-66 [18.8K]

Answer:

135 steps

Step-by-step explanation:

<u>Each member marches:</u>

50 + 40 = 90 yards

<u>Convert this to feet:</u>

1 yard = 3 feet
90 yards = 3*90 feet = 270 feet

<u>Find the number of steps:</u>

270/2 = 135 steps

7 0

3 years ago

Read 2 more answers

Jared is constructing a rectangular door for a shed. If the door, shown below, has a width of 42 in. and a diagonal support of 9

Goshia [24]

Answer:

B

Step-by-step explanation:

A rectangular door for a shed has a width of 42 in and a diagonal support of 94 in. The triangle formed by the rectangle's width (first leg), rectangle's length (second leg) and rectangle's diagonal (hypotenuse) is right triangle. By the Pythagorean theorem,

$\text{leg}_1^2+\text{leg}_1^2=\text{hypotenuse}^2.$

Thus,

$42^2+x^2=94^2,\\ \\x^2=94^2-42^2=7072,\\ \\x=\sqrt{7072}=4\sqrt{442}\approx 84\ in$

7 0

3 years ago