First, you subtract 2x on both sides
divided on both sides by -3
divided on both sides by -3
If a small boy, in 30 days, saved $1.00 to spend in your store, how much did he save each day?
2 answers:
Answer:
He saved 3.3 cents for 29 days and 4.3 cents for one day.
(This means a minimum of 3.3 cents each day)
Step-by-step explanation:
We divide the total amount saved by the number of days it took to save the money.
i.e $1.00 divided by 30 days
He saves a minimum of $0.033 each day for 30 days
However, if he only saves $0.033 cents, he would have saved $0.99 on the thirtieth day.
0.033 x 30 = $0.99
This means he would be $0.01 short
Therefore, in order to have $1.00, he must save an extra $0.01 on one of the 30 days
This means he would save 0.033 + 0.01 = $0.043 for one day.
Where $1.00 = 100 cents
$0.033 = 3.3 cents
$0.01 = 1 cent
$0.043 = 4.3 cents
He saved 3.3 cents for 29 days and 4.3 cents for one day
3.3 x 29 = 95.7 cents
4.3 x 1 = 4.3 cents
95.7 + 4.3 = 100 cents
100 cents = $1.00
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