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IgorC [24]
3 years ago
8

Translate to an​ equation, then solve

Mathematics
1 answer:
rjkz [21]3 years ago
4 0

Answer:

n=12

Step-by-step explanation:

13 less than 9 times a number: 13 less than 9n, 9n-13

11 more than 7 times a number: 11 more than 7n, 7n+11

9n-13=7n+11

2n=24

n=12

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Use the figure to find the measures of<br> &lt;1 and &lt;2
Romashka [77]
Angle 1 = 134
angle 2 = 46

explanation:
angle 1 is a supplementary with 46
angle 2 is alternate interior with 46
6 0
2 years ago
Time to paint the living room. The room measures 20 feet wide by 30 feet long by 12
chubhunter [2.5K]

The cost to paint the walls and the ceiling is $855

<h3></h3><h3>How much will it cost?</h3>

First, we need to find the area that will be painted.

The area of two of the walls is:

A = 20ft*12ft = 240ft²

The area of the other two walls:

A' = 30ft*12ft = 360ft²

The area of the ceiling is:

A'' = 20ft*30ft = 600ft²

We also need to subtract the areas of the two doors and the 4 windows.

Each door is 7ft by 3ft, so the area of each door is:

a = 7ft*3ft = 21ft²

Each window is 4ft by 3ft:

a' = 4ft*3ft = 12ft²

Then the total area that will be painted is:

area = 2A + 2A' + A - 2a - 4a'

area = 2*( 240ft²) + 2*(360ft²) + 600ft² - 2*(21ft²) - 4*(12ft²)

area = 1,710 ft²

We know that we need two coats of paint to cover that area, and the cost per square foot of paint is $0.25, then the total cost is:

C = $0.25*2*(1,710) = $855

The cost to paint the walls and the ceiling is $855

If you want to learn more about areas:

brainly.com/question/24487155

#SPJ1

6 0
2 years ago
Kevin is 6 years older than Timothy. 4 years ago, Kevin was twice as old as Timothy. Find their present ages.
Novosadov [1.4K]

Step-by-step explanation:

Hope it helps.

Handwriting is a bit poor. So, restraint is advised!

:)

6 0
2 years ago
Evaluate the following expression at x = -4<br> -5x-1
ANTONII [103]
All u have to do is 20-1=19
3 0
3 years ago
Read 2 more answers
solve the system of equations below by graphing both equations with a pencil and paper. what is the solution y = x - 1 y = 1/2x
Elan Coil [88]

Answer:

(4,3)

Step-by-step explanation:

(x-1) = \frac{1}{2}x +1

(x-\frac{1}{2}x)-(-1+1)=(\frac{1}{2}x-\frac{1}{2}x)+(1+1)

(\frac{1}{2}x/\frac{1}{2})=(2/\frac{1}{2})

x=4

y=(4)-1

y=3

y=\frac{1}{2}(4)+1

y=2+1

y=3

6 0
3 years ago
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