Marta has opened a savings account with $25. At the end of three months, she has $85 in her account. She deposited the same amou
nt each month during these three months. At what rate has she been making deposits to her savings?
$25 a month
$25 a week
$20 a month
$20 a week
$25 a month
$25 a week
$20 a month
$20 a week
1 answer:
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The exercise is basically asking: how much do we have to add to x to get y?
If you look at the table, the y value is always 4 more than the correspondent x value.
So, in order to get y, you must add 4 to x.