3 years ago

He table shows the number of grade 7 and grade 8 students on the student council at Jeremy’s school.

Mathematics

1 answer:

Artyom0805 [142]3 years ago

8 0

Answer:

Im pretty sure the answer is B, forgive me if I am wrong.

Step-by-step explanation:

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Margarita [4]

Answer:

D. 28

Step-by-step explanation:

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3 years ago

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3 years ago

What is the value of x?

Alexus [3.1K]

Answer:

x = 22.5

Step-by-step explanation:

$\frac{BH}{DH} = \frac{HM}{HT} \\ \frac{6}{15 + 6} = \frac{9}{9 + x} \\ \frac{6}{21} = \frac{9}{9 + x} \\ 6(9 + x) = 9 \times 21 \\ 54 + 6x = 189 \\ 6x = 189 - 54 \\ 6x = 135 \\ x = \frac{135}{6} \\ x = 22.5$