MATH SOLVE

4 months ago

Q:
# Liam thinks of a number . He multiplies the number by 5 and then subtracts 60 form the result .his answer equals the number he started with : what was the number Liam started with ?

Accepted Solution

A:

To find this answer you can use a guess and check method.

Start with 1.

1 x 5 = 5

5 - 60 will not work

Try 10

10 x 5 = 50

50 - 60 will not work

Try 20

20 x 5 = 100

100 - 60 will not work

Try 15

15 x 5 = 75

75 - 60 = 15

The answer is 15.

Start with 1.

1 x 5 = 5

5 - 60 will not work

Try 10

10 x 5 = 50

50 - 60 will not work

Try 20

20 x 5 = 100

100 - 60 will not work

Try 15

15 x 5 = 75

75 - 60 = 15

The answer is 15.