4 years ago

4.2(3.9r – 5.9s) + 7.9s – 9.53r

Mathematics

1 answer:

nexus9112 [7]4 years ago

8 0

Answer:

D. 6.85r – 16.88s

Step-by-step explanation:

Use the distributive property to eliminate parentheses, then collect terms.

4.2(3.9r -5.9s) +7.9s -9.53r

= 16.38r -24.78s +7.9s -9.53r

= (16.38 -9.53)r +(-24.78 +7.9)s

= 6.85r -16.88s

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