12/11 3A Review for final

Last updated over 1 year ago

8 questions

12/11 3A Review for final

Last updated over 1 year ago

8 questions

Find the scale factor of the triangle. Triangle DEF is the scaled copy
_______ 

Find the value of X using scale factor.

A home decorator is adding new flooring to a living room using the blueprint below. The length is 5 in. and the width is 4 in. Remember, the area of a scaled copy is equal to the area of the original figure multiplied by the scale factor squared.
What is the scale factor?_______ 
What is the actual length of the living room?_______ 
What is the actual width of the living room?_______ 
How many square feet of flooring does she need to purchase?_______ 

To buy a computer, Raquel borrowed $6,000 at 4% interest for 3 years. How much money did she have to pay back?

Remember that the formula for commission is : The amount earned= the total amount times the commission rate. Terri sells televisions at Best Buy. She earns 15% commission on her total sales. If Terri had a total sale of $1000 last week, how much did she earn in commissions?

From the previous problem, if Terri earned $630 dollars in commission with the same 15% rate. What was the total sales amount that she sold?

A computer is priced at $730. However, you received a discount and now the computer is priced at $605.90. What was the percent decrease of the discount?

The Martin family wants to buy a new computer. The regular price is $850. The store is offering a 15% discount and a sales tax of 6% is added after the discount. What is the total cost of the TV?