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Anna [14]
3 years ago
10

Someone please help me with #15

Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

b. A year and a half

Step-by-step explanation:

First, we can find the total cost

1512+263=1775

Next, we can divide by 50 in order to find out how many months it will take for the panel to pay for itself.

\frac{1775}{50} =35.5 months

This is very close to 36 months, which is <u>A year and a half</u>.

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Rachel has taken 6 tests so far and has received scores of 83%, 92%, 79%, 88%, 89%, and 95%. What must Rachel receive on her sev
Vinil7 [7]
Let the score on her seventh test be "x".

SO,

\frac{83+92+79+88+89+95+x}{7} =90\\\\ \frac{526+x}{7}=90\\\\ 526+x=630\\\\x=630-526\\\\ \boxed{x=104}

∴ He must get 104% on his seventh test to get an average score of 90%
5 0
3 years ago
Read 2 more answers
The table shows the outputs, y, for different inputs, x:
Akimi4 [234]
A Yes  as the x values are all different

B f(x) = 5x + 14

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C f(x) = 64 = 5x + 14

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8 0
3 years ago
You roll a number cube twice. Find the probability of the events. Rolling an even number of 5.
lys-0071 [83]

Answer:

An even number and a 5. In the first roll you can get 2, 4 or 6, so you have 3 out of 6 options, the probability is 3/6 = 1/2, in the second roll you need you get a 5, the probability is 1/6.

I really hope this helps please give brainliest!!!!

5 0
3 years ago
If you have 2/3 and 4/8 are they equivalent? No
damaskus [11]

Answer:

No is correct

Step-by-step explanation:

convert 2/3 into 6ths

4/6 = 8/12

so no, non of them equal to 4/8

5 0
3 years ago
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I'm solving for UW. And we're using pythagorean theorem.​
Alik [6]
UW = 45
a squared + b squared = c squared
- 6^2 + x^2 = 9^2
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- (subtract 36 from both sides)
- x = 45

i'm pretty sure this is right and i hope it helps you!
7 0
3 years ago
Read 2 more answers
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