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2 years ago

If x = 3 and y = 7 , evaluate the following expression: 20 − ( 3 y − 4 x )

Mathematics

2 answers:

xenn [34]2 years ago

6 0

Answer:

20-3(7)-4(3)

20-21-12

-13

Mariulka [41]2 years ago

4 0

Answer:

20 - (3(7) - 4(3)) = ?

20 - (21 - 12) = ?

20 - 9 = 11

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Answer:

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Step-by-step explanation:

A) The equation set up for this part is 1,542-50=1,492 We know that we're subtracting 50 from 1,542 because it say that the plane starts below sea level.

B) The equation set up for this part is 3,400-1,492=1,908 We know that we're subtracting the answer from part A from 3,400 because the plane will need to climb the difference in order to reach 3,400.

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fenix001 [56]

Answer:

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Step-by-step explanation:

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