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3 years ago

First to answer gets brainiest

Mathematics

1 answer:

Stolb23 [73]3 years ago

3 0

Answer:

V = 67 1/2 cm^3

Step-by-step explanation:

The volume is given by

V = l*w*h

V = 4 1/2 * 6 * 2 1/2

Changing to improper fractions

V = 9/2 *6*5/2

V =270/4

V = 135/2

Changing to a mixed number

V = 67 1/2 cm^3

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Chris’s new car gets 42 miles per gallon. What is the equation that represents y, the total miles driven on x gallons of gas?

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Answer: I think the answer is B

Step-By-Step Explination:

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Next you figure out what y is by doing 4.2y (witch is 4.2 times y)

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3 years ago

At a pet store the ratio of cats to dogs sold was 10:1. If there were 60 cast that were sold, how many dogs were sold?

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Ratio for this mean for every 10 cats sold there was one dog

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3 years ago

What is the volume of a square pyramid with base edges of 60 inches and a height of 10 inches?

vichka [17]

Answer:

The volume is $12000 in^3$

Step-by-step explanation:

From the question ,

$L= 60\:in.$ and $H=10\:in.$

The volume of a pyramid is given as

$V=\frac{1}{3} \times area\:of\:the\:base \times height$

From the question, the base of the pyramid is a square.

Hence base area is given by $L^{2}$

This implies that the volume of the pyramid is

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$=\frac{36000}{3}$

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2 years ago

The kinetic energy (in joules) of a moving object can be calculated from the expression 1/2mv^2, where m is the mass of the obje

algol13

Answer: $116\text{ joules}$

Step-by-step explanation:

Given: Mass of baseball=0.145 kg

Speed of baseball=40 meters per second

Also it is given that The kinetic energy (in joules) of a moving object can be calculated from the expression $\frac{1}{2}mv^2$ , where 'm' is the mass of the object in kilograms and 'v' is its speed in meters per second.

Thus, the kinetic energy of baseball= $\frac{1}{2}(0.145)(40)^2$

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3 years ago

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iren [92.7K]

Answer:

61/5= 12.2 centimeters per minute

Step-by-step explanation:

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3 years ago

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