Choose all that give the correct expression.

A) Steven lost four $10 bills, and now he has - $40. - 4 * 10

B) If I lose 8 pounds per month for 3 months, my weight will change - 24 pounds total. 3 * (-8)

C) Sarah spends $2 for each fare on the commuter train. She rides the train 10 times during a week. 2 * (-10)

D) Pat and Amy were on a diet for 4 months. Pat lost an average of 3 pounds a month, and Amy lost an average of 4 pounds a month. 4 ((-3) + (-4))

Question

Mathematics

Midnight

12 April, 11:05

Choose all that give the correct expression.

A) Steven lost four $10 bills, and now he has - $40. - 4 * 10

B) If I lose 8 pounds per month for 3 months, my weight will change - 24 pounds total. 3 * (-8)

C) Sarah spends $2 for each fare on the commuter train. She rides the train 10 times during a week. 2 * (-10)

D) Pat and Amy were on a diet for 4 months. Pat lost an average of 3 pounds a month, and Amy lost an average of 4 pounds a month. 4 ((-3) + (-4))

+5

Answers (1)

Know the Answer?

Jack Duran · Answer 1

The statements that correctly represent the scenario stated are:

B. because losing 8 pounds is represented as - 8 and doing this for 3 months would be 3 groups of - 8 or 3 x - 8

D. because they showed the weight loss as a negative integer and then put those into groups of 4 each using the distributive property)

The error with the other 2 choices is that the negative number is not correctly representing which part of the problem is a decrease. The negative sign is placed on the number of groups of.