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kakasveta [241]
2 years ago
6

Help!! Giving brainless need help

Mathematics
2 answers:
charle [14.2K]2 years ago
4 0

Answer:

A. 15

Step-by-step explanation:

V of a right prism which this is. Is LxWxH

So 1.5x 4x2.5=15

kow [346]2 years ago
3 0

Answer:

A. 15 cubic units

Step-by-step explanation:

Volume = length × width × height

V = lwh

V = 4 × × 1 1/2 × 2 1/2

There are two fractions here. Convert them to improper fractions to make the multiplication easier on yourself

(Denominator × whole number + numerator)/ denoninator = improper fraction

(2 × 1 + 1)/2 = 3/2

Next fraction

(2 × 2 + 1)/2 = 5/2

Plug these improper fractions into the volume formula

V = 4/1 × 3/2 × 5/2

Any number over one is the same as writing just that number. I write it like this so it's easier to read/understand

Multiply the numerators and denominators separately

V = (4 × 3 × 5)/(1 × 2 × 2)

V = (12 × 5)/(2 × 2)

V = (60)/(4)

V = 60/4

Simplify (Both the numerator and denominator can be evenly divided by 4)

V = (60 ÷ 4)/(4 ÷ 4)

V = 15/1

Any number over one is the same as the numerator

V = 15

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