Question

Unit Test / 16 of 25

Answer 1

Answer:

30

Step-by-step explanation:

For the minimum free throws, he must put every throw to the basket.

So, let n be the number of throws for Tuesday, in which all the throws are successful.

So, over both the days, total free throws he makes= 15+n.

Total numbers of throws that went in the basket= 6+n.

As he wants at least 80% of his balls to go in the basket.

So, 6+n is greater than or equal to 809% of 15+n, i.e

$6+n\geq \frac{80}{100}\times (15+n)$

$\Rightarrow 30+5n\geq 60+4n$

$\Rightarrow n\geq 30.$

Hence, the minimum number of free throws required on Tuesday to reach his goal is 30.