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anastassius [24]
3 years ago
6

Tyler needs to get the windows in his new home cleaned. The cleaning company needs to know the total number of window panes befo

re it can
tell him how much the job will cost. There are 12 windows, each with four window panes across and four window panes down. Tyler can find the

total number of window panes by multiplying the number of windows by the number of panes in each window. The total number of window

panes is an expression with a whole number exponent.
Mathematics
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

There are 192 window panes in total.

Step-by-step explanation:

Since each window has four window panes across and four window panes down,the number of panes per window is:

w=4*4=4^2

The total number of window panes in 'n' windows is:

P=n*4^2

With n = 12 windows, the expression that describes the total number of window panes is:

P=12*4^2\\P=192\ panes

There are 192 window panes in total.

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Solve the following system of equations algebraically:<br> 4x - 5y = 18<br> 3x – 2y = 10
fiasKO [112]

Answer:

D

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

8 0
3 years ago
Caleb took 9 photos at the zoo. One third of his photos are of giraffes. Enter the number of Caleb's photos that are of giraffes
Serhud [2]

Answer:

3 pictures are giraffes

Step-by-step explanation:

1/3 of 9 is 3. Caleb took 3 pictures of giraffes.

3,6,9...

1/3, 2/3, 3/3=1

Hope this helps!

8 0
2 years ago
Read 2 more answers
Can I have help with this, I have drawn out a graph and marked my points so far.
Sidana [21]

Answer:

D. 2x²

Step-by-step explanation:

Ok, so the first thing to do is remember the first number in parentheses is x, and the second number is y.

You're trying to figure out which expression turns x into y in each set.

Just by plugging in the numbers into each expression I found that the answer is 2x².

I'll prove this starting with (1, 2).

1² = 1  

2 x 1 = 2

So, y = 2x²!

Next, (2, 8).

2² = 4

2 x 4 = 8

So, y = 2x²!

I'm not going to demonstrate with the other two but I hope you understand. Just plug the values of x and y into the equation and see which is correct.

4 0
3 years ago
The temperature at 6:00 A.M. 58 degrees Fahrenheit. The temperature increased at a constant rate of 3 degrees Fahrenheit every h
Tasya [4]

Answer: c. (t:58\leq t\leq 70)

Step-by-step explanation:

given data:

T =  58 degree Celsius.

changes in temperature = 3dregres every hour = 4.

solution:

t=58+3h\\where h = 4

substitute the value for h into the equation.

t=58+3(4)\\t=58+12\\t=70

the set with 58\leq t\leq 70  best represents the function range.

5 0
2 years ago
Hattie drew a box plot of annual rainfall in some cities in the world. Which statements are true about the data in the box plot?
brilliants [131]

Answer:

Step-by-step explanation:

6 0
3 years ago
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