15. Gwen had a painting that had a length of 5 feet and a width of 3.5 feet. If a reproduced copy of that painting had a scale factor of 3, what are the new dimensions?
a. 3 feet by 3.5 feet
b. 9 feet by 15 feet
c. 10 feet by 7 feet
d. 15 feet by 10.5 feet

D. 15 by 10.5

Step-by-step explanation:

If the original painting has dimensions of 5 by 3.5, and has a scale factor of 1, then if we are trying to find the dimensions of the same thing but with a scale factor of 3, then we need to multiply the dimensions by 3.

5*3 = 15

3.5*3 = 10.5

The new dimensions are 15 by 10.5.

Hope this helps. Have a nice day.

fd

step-by-step explanation: