171k views
1 vote
Dwayne wrote a two-digit number. He multiplied it by 3, added 18, and divided by 8. His final answer was 9. What number did Duwayne write?

Dwayne wrote a two-digit number. He multiplied it by 3, added 18, and divided by 8. His-example-1

1 Answer

1 vote
Question 1:
(x*3)+18/8=9 is the equation
(x*3)+18=72 multiply by 8
(x*3)=54 Subtract 18
x=18 Divide by 3

The two digit number is 18

Question 2:
x*4=43 Divide by 4
x=10.75 10 3/4
10 3/4+3 3/4 Solve
14 1/2

Pablo is 14 1/2 years old
User Tyler
by
8.2k points