Question

Anna is saving to buy a new cell phone. Her mother is helping Anna by contributing money each month. What is the ratio between the amount of money contributed by Anna and the amount contributed by her mother? What was the total amount saved in April?

Answer 1

Answer:

The answer for USA test prep is 3.1:$120

Step-by-step explanation:

I took the test with the answer below and it was wrong

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Answer 2

Answer:

1. $3:1$

2. $Total\ money\ saved\ in\ April=\ 120$

Step-by-step explanation:

The missing table of the exercise is attached.

1. You can observe in the table that when Anna contributed $30, her mother contributed $10. Then, you can find the ratio by dividing Anna's contribution by her mother's contribution:

$\frac{30}{10}=\frac{3}{1}$

Since a ratio in the form $\frac{a}{b}$ can be also written in the form $a:b$, you can rewrite the ratio found above as:

$3:1$

2. Observe the table.

To find the total amount saved in  April, you must add the amount of money Anna contributed on that month and the amount of money her mom contributed on that month.

Then, this is:

$Total\ money\ saved\ in\ April=\ 30+\ 90\\\\Total\ money\ saved\ in\ April=\ 120$