Question

Which situation can be represented by the expression 3 + (-7) plus, left parenthesis, minus, 7, right parenthesis.

Answer 1

Options:

(A) . A football team lost 3 yards on one play. The team gained 7 yards on the next play.

(B ). A football team gained 3 yards on one play. The team lost 7 yards on the next play.

(C). A football team gained 3 yards on one play. The team gained 7 yards on the next play.

Answer:

(B ). A football team gained 3 yards on one play. The team lost 7 yards on the next play.

Explanation:

Given

`3 + (-7)`

Required

Which situation does it represent?

First, we simplify the expression as follows:

`3 + (-7)`

Remove brackets

`3 -7`

Express each term with their signs

`+3 -7`

Analysing each term;

In terms of the list of given options,

+3 means a gain of 3 yards

-7 means a loss of 7 yards

Hence, B. is correct