NAME _____________________________________
DATE ______________ CLASS 7 A B C
M4 L18 Homework # 65
Percent Error
1. The veterinarian weighed Oliver’s new puppy, Boaz, on a defective scale. He weighed 27 pounds. However,
Boaz weighs exactly 25 pounds. What is the percent of error in measurement of the defective scale?
2. Connor and Angie helped take attendance during their school’s practice fire drill. If the actual count was 96, but
they counted 84, what is the percent of error in measurement of Connor and Angie’s count?
3.
The odometer in Mr. Washington’s car does not work correctly. The odometer recorded 13.2 miles for his last
trip to the hardware store, but he knows the distance traveled is 15 miles. What is the percent error?
SPIRAL REVIEW
Remembering How to Use Unit Rates
Richard mows
1
3
of his yard in
1
2
hour. How much of his yard would Richard mow in 1 hour?
NAME _____________________________________
DATE ______________ CLASS 7 A B C
M4 L19 Homework # 66
Review/Interest
DIRECTIONS: Answer the following questions based on your knowledge of Interest.
4.
Enrique takes out a student loan to pay for his college tuition this year. Find the interest on the loan if he
borrowed $5,000 at an annual interest rate of 6% for 10 years.
5.
Your family plans to start a small business in your neighborhood. Your father borrows $15,000 from the bank
at an annual interest rate of 6.5% rate for 𝟑 𝐲𝐞𝐚𝐫𝐬. What is the amount of interest he will pay on this loan?
6.
Erica’s parents gave her $600 for her high school graduation. She put the money into a savings account that
earned 5% annual interest. She left the money in the account for nine months before she withdrew it. How
much interest did the account earn if interest is paid monthly?
SPIRAL REVIEW
Proportional Relationships 𝑦 = 𝑘𝑥
The unit rate in a proportional relationship is 5. If y is the dependent variable and x is the
independent variable, write an equation to show the relationship.
_______________________________________________
NAME _____________________________________
DATE ______________ CLASS 7 A B C