A baseball player reaches first base 30% of the times he is at bat. Out of 70 times at bat, about how many times will the player reach first base?

The player is predicted to reach first base ? times out of 70.

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Ответ:

destinyranson

13.02.2020

Mathematics

Petra can make 8 costumes with 12 yards of fabric

Solution:

Given that Petra was given 12 yards of fabric to make costumes for the school play

Each costume requires $1\frac{1}{2}$ yards

To find: number of costume Petra can make

The number of costume Petra can make is calculated by dividing the total fabric she has by fabric needed for one costume

$\text {number of costume Petra can make }=\frac{\text {total fabric she has }}{\text {fabric needed for one costume }}$

Total fabric she has = 12 yards

Fabric needed for 1 costume = $1\frac{1}{2} = \frac{2 \times 1 + 1}{2} = \frac{3}{2}$ yards

Therefore,

$\text {number of costume Petra can make }=\frac{12}{3 / 2}=\frac{12}{3} \times 2=8$

Thus petra can make 8 costumes with 12 yards of fabric

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A baseball player reaches first base 30% of the times he is at bat. Out of 70 times at bat, about how many times will the player reach first base? The player is predicted to reach first base ? times out of 70.