3 years ago

Run 4 1/2 kilometers in 1/3 of an hour how many kilometers can she run in 1 hour

Mathematics

1 answer:

nordsb [41]3 years ago

8 0

Answer:

She can run 13 1/2 kilometers in an hour

Step-by-step explanation:

4 1/2 * 3 = 13 1/2

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What is the coefficient in the algebraic expression 7 xy2 ?

Monica [59]

The answer is 7!

The number In front of the variable is always the coefficient.

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3 years ago

Question 1: find the volume of a cube whose total surface area is 486cm^2

lapo4ka [179]

<h3>The volume of cube is 729 cubic centimeter</h3>

Solution:

The surface area of cube is given as:

$Surface\ area = 6a^2$

Where, "a" is the length of side of cube

Given that, surface area = 486 square centimeter

$486 = 6a^2\\\\a^2 = \frac{486}{6}\\\\a^2 = 81\\\\a = 9$

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3 years ago

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Arada [10]

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3 years ago

Joesl's father is 45. He is 15 years older than twice joe's age. How old Is joe?

tresset_1 [31]

Joe is 15, 45-15=30 30/2=15

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3 years ago

What is the value of x + 3y + z if x = 4, y = 5, and z= 22 a) 16 b) 41 c) 2

fgiga [73]

Answer:

OPTION B - 41

Step-by-step explanation:

An expression is given and the corresponding values for the expression are also given. We have to substitute the given values to arrive at the answer.

The given expression is: x + 3y + z.

Also given: x = 4, y = 5, z = 22.

Substitute these values in the above expression, we get:

4 + 3(5) + 22 = 4 + 15 + 22 = 41.

∴ x + 3y + z = 41

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2 years ago