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OlgaM077 [116]
3 years ago
8

61/28 + a = 19/4a - 11/7

Mathematics
2 answers:
kondaur [170]3 years ago
8 0

the answer for a = 1

m_a_m_a [10]3 years ago
8 0

Simplify 19/4a to 19a/4

61/28 + a = 19a/4 - 11/7

Multiply both sides by 4

61/7 + 4a = 19a - 44/7

Subtract 4a from both sides

61/7 = 19a - 44/7 - 4a

Simplify 19a - 44/7 - 4a to 15a - 44/7

61/7 = 15a - 44/7

Add 44/7 to both sides

61/7 + 44/7 = 15a

Simplify 61/7 + 44/7 to 15

15 = 15a

Divide both sides by 15

1 = a

Switch sides

<u>a = 1</u>

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3 years ago
Please could someone help!
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<h2>32.16 \: grams</h2>

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mass = volume \times density \\  \:  \:  \:  \:  \:  \:  \:  \:  =  2.4 \:   \frac{g}{ {cm}^{3} }   \times 13.4 \:  {cm}^{3}  \\  \:  \:  \:  \:  \:  \:  \:  \:  = 2.4 \times 13.4 \: \: grams  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  = 32.16 \: \: grams

Hope this helps...

Good luck on your assignment..

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