Gabriel used the expression 2.5x + 2y – 2 to represent his total cost, and 28 – 2.5x – 2y to represent the amount of change he s

Question

tigry1 [53]

3 years ago

12

Gabriel used the expression 2.5x + 2y – 2 to represent his total cost, and 28 – 2.5x – 2y to represent the amount of change he s

hould receive from $30. What was Gabriel’s error?

Mathematics

2 answers:

Varvara68 [4.7K] · Answer 1 · 2022-12-13T13:43:49+03:00

Varvara68 [4.7K]3 years ago

5 0

Answer:

Step-bThe entire expression should be subtracted from 30. To subtract the quantity, distribute the negative sign, which changes the signs on the terms. So, the –2 changes to positive and gets added to 30 instead of subtracted from it.

y-step explanation:

Paul [167] · Answer 2 · 2022-12-13T11:48:28+03:00

Paul [167]3 years ago

4 0

Answer:

The entire expression should be subtracted from 30. To subtract the quantity, distribute the negative sign, which changes the signs on the terms. So, the –2 changes to positive and gets added to 30 instead of subtracted from it.

Step-by-step explanation: