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Liono4ka [1.6K]
3 years ago
14

Tomas correctly spelled 18 out of 20 words in his last spelling quiz.what percent of the words did Tomas spell correctly

Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
6 0
18/20 multiplied by 100 is 90%

Ivan3 years ago
3 0
18/20=9/10 9*10=90%
use the fraction or decimal then multiply by 100 or ten depending
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Given

\frac{1}{4} x - \frac{1}{2} y = 8

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x - 2y = 32 → (1)

2x + 3y = - 20 → (2)

Multiplying (1) by - 2 and adding to (2) will eliminate the x- term

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Add (2) and (3) term by term to eliminate x

0 + 7y = - 84

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