Question

PLEASE HELP a) Calculate the scale factor from shape A to shape B.

b) Find the value of t.
Give each answer as an integer or as a fraction (preferable) in its simplest form.

Question attached, Thank you!
​

Answer 1

see explanation

Explanation:

(a)

the scale factor is the ratio of corresponding sides, shape B to shape A

scale factor =
`(12)/(15)` =
`(4)/(5)`

(b)

t is then
`(4)/(5)` of 7 =
`(4)/(5)` × 7 =
`(28)/(5)`