Question

A boy who is 3 feet tall can cast a shadow on the ground that is 7 feet long. How tall is a man who can cast a shadow that is 14 feet long? Solve this problem by setting up a proportion

Answer 1

no clue :(

Answer 2

idk too hard D:

Answer 3

that's what the proportion should look like

Answer 4

is that the answer?

Answer 5

shadow of boy over shadow of man
=
height of boy over height of man

Answer 6

no, now you cross-multiply to solve for x

Answer 7

14x3=42

Answer 8

7x3=21

Answer 9

top left x bottom right
=
bottom left x top right

Answer 10

uhhhhhh

Answer 11

7x/42????

Answer 12

from 7x = 42, you're trying to get x by itself

Answer 13

so what would you do to cancel out the 7?

Answer 14

divide???

Answer 15

yup

Answer 16

42/7=6

Answer 17

correct

Answer 18

is that the answer?

Answer 19

6?