Vanessa spent 4/5 of her money at the bookstore. in total, the books cost $45. how much did she start with?

The money she start with is $25.

Step-by-step explanation:

Given:

Vanessa spent 4/5 of her money at the bookstore.

In total, the books cost $45.

Now, to find the money she start with.

Let the money she start with be .

Money spent at the bookstore .

Total books cost = $45.

According to question:

⇒

Adding the variables we get:

⇒

Multiplying both sides by 5 we get:

⇒

Dividing both sides by 9 we get:

⇒

Therefore, the money she start with is $25.

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step-by-step explanation:

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(a) the volume of the cone is 20/3 in3

hence, option a is correct.