Question

Carl puts $1.10 in his penny bank everyday in the moth of July (31 days). His total savings was $55 at the end of June. What is the best estimate for Carl's saving at the end of July?

Answer 1

Answer:

C) About $85

Step-by-step explanation:

Please consider the complete question.

Carl puts $1.10 in his penny bank every day in the month of July (31 days). His total saving at the end of June is $55.00. What is the best estimate at the end of July?

A) about $25

B) about $115

C) about $85

D) about $66

First of all, we will round $1.10 to nearest whole number and round 31 to nearest tens as:

$\ 1.10\approx \ 1$

$31\approx 30$

So amount saved in 30 days would be 30 times $1.

$\text{Savings in 30 days}=\ 1\times 30$

$\text{Savings in 30 days}=\ 30$

Carl's savings at the end of July would be amount saved in June plus amount saved in July that is $\ 55+\ 30=\ 85$

Therefore, the estimate for Carl's saving at the end of July is $85 and option C is the correct choice.