7th Grade Academic Test REVIEW 3-1

Which situation is best represented by the following equation? 45W + 123.95 = 753.95

• Erica paid $753.95 for dance class. She paid $123.95 for each week she was enrolled in the classes, and her sister paid $45 for each week she was enrolled in the class. What is w, the number of weeks Erica and her sister was enrolled in dance classes?

• Erica paid $753.95 for dance class. She paid $123.95 registration fee and $45 for each week she was enrolled in the class. What is w, the number of weeks Erica was enrolled in dance classes?

• Erica paid $753.95 for dance class. She paid $123.95 for each week she was enrolled in the classes after using a coupon that gave her $45 off the price per week. What is w, the number of weeks Erica was enrolled in dance classes?

• Erica paid $753.95 for dance class. She paid $45 registration fee and $123.95 for each week she was enrolled in the class. What is w, the number of weeks Erica was enrolled in dance classes?

Three hundred students went on a field trip. Five buses each had the same number of students, and 25 students traveled by car. Which equation can be used to find the number of students on each bus?

• 5x - 25 = 300

• 25 – 5x = 300

• 25x + 5 = 300

• 5x + 25 = 300

Tamara invested $1,600 in an account that pays 4.5% annual simple interest. Tamara will not make any additional deposits or withdrawals. How much total will Tamara have in her account at the end of 3 years? (TEKS 7.13E)

• $192

• $216

• $1,816

• $1,792

A bank has a savings rate of 6% simple interest per year. If a customer deposited $4,000 in a new account and does not add or withdraw any money to the account, how much simple interest will the customer make in 18 months?

• $80

• $120

• $240

• $360

What is the value of x?

• 15

• 7.5

• 12

• 37.5

Billy wrote this equation and solved for x. Is Billy correct? If not, where did he go wrong? (7.11C) Billy's Work: 30 + 130 + 4x = 90 X = 17.5

• Billy set his equation equal to 90 instead of 180. The solutions for x should be 12.5.

• Billy set his equation equal to 90 instead of 180. The solutions for x should be 15.

• Billy set his equation equal to 90 instead of 180. The solutions for x should be 5.

• Billy is correct.

Kaley recorded whether shoppers were wearing flip-flops or some other type of shoe. There were 11 less than 2 times the number of people wearing flip-flops than any other type of shoe. There were 197 shoppers wearing flip-flops. The equation below can be used to find c, the number of customers Kaley observed wearing something other than flip-flops. How many shoppers did Kaley observe wearing something other than flip-flops?

• 104

• 93

• 416

• 372

What is the solution to this equation? 30.16 = 17.56 + 5x

• 3.512

• 12.6

• 6.032

• 2.52

The price of a large avocado is $0.27 less than 1/2 the price of a honeydew melon. If large avocados are on sale for $1.29 each, the equation above can be used to find h, the price for each honeydew melon. Solve to find the price for each honeydew melon.

• $2.04

• $3.12

• $0.78

• $1.56

• x=3

• x=15

• x=5

• x=1