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Sheet # 59 Critical Thinking

Name: _____________________ Date_____________


Show and explain your work. Draw pictures or make tables to explain your answer.

Shante and Luis each have $10 in the bank. Every month, Shante adds $1 to her account and Luis adds $3 to his account. In how many months will Luis have twice as much as Shante?




























Answer for sheet # 59

Equation:

$10 + 3 n = 2 ( $10 + n) where n is the number of week.

n = 10

Week # Shante Luis
Starting $10 $10
week 1 11 13
Week 2 12 16
3 13 19
4 14 22
5 15 25
6 16 28
7 17 31
8 18 34
9 19 37
10 20 40