3 years ago

If x = 4y + 21y and y = 14 + 5, what is 3x × 7? No need to show your work.

Mathematics

2 answers:

podryga [215]3 years ago

7 0

y = 19

x = 4(19) + 21(19) = 76 + 399 = 475

3(475) × 7

1425 × 7

9975 <--- answer.

Hope this helped!

Nate

Brut [27]3 years ago

3 0

Answer:

the answer is 39

Step-by-step explanation:

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pogonyaev

Answer:

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Step-by-step explanation

Remove brackets

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2 years ago

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mafiozo [28]

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2 years ago

Simplify: -1 | 2/3 - 4 | / 5/6

stealth61 [152]

Answer:

Step-by-step explanation:

$- 1 | \frac{2}{3} - 4| \div \frac{5}{6} \\ - 1 | \frac{2}{3} - \frac{4 \times 3}{1 \times 3} | \div \frac{5}{6} \\ - 1 | \frac{2 - 12}{3} | \div \frac{5}{6} \\ - 1 | \frac{ - 10}{3} | \div \frac{5}{6} \\ \frac{10}{3} \div \frac{5}{6} \\ \frac{10}{3} \times \frac{6}{5} \\ \frac{2}{1} \times \frac{2}{1} = 4$