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3 years ago

which property can you use to solve the following expression?5(6+9) A) distributive B) associative C) commutative

Mathematics

1 answer:

Vilka [71]3 years ago

4 0

Answer: A

Step-by-step explanation:

When you use the distributive property, you are multiplying every term in the parentheses by the number outside of it. You are typically multiplying so that is how you will get the simplified form of your equation.

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A brick wall will be shaped like a rectangular prism. The wall needs to be 3ft tall and the builders have enough bricks for the

faltersainse [42]

Answer:

For a rectangular prism that has a base area B, and a height H, the volume is:

V = B*H

This is the only "tool" that we need to use in this situation.

We know that the wall needs to be 3ft tall, then H = 3ft

And we also know that we have enough bricks for a wall of a volume:

V = 330 ft^3

If we replace these two in the volume equation, we get:

330ft^3 = B*3ft

Now we can solve this for B, and thus find the volume of the base of the wall.

To do it, we just need to divide both sides by 3ft

(330 ft^3)/3ft = B*3ft/3ft

110 ft^2 = B

This means that the area of the base is 110ft^2

As the base is a rectangle of width W and length L, we must have:

110ft^2 = B = L*W

Then the possible measures of the base are given by the linear relation:

L = 110ft^2/W

Where we also need to add some trivial restrictions, like:

L > 0 ft

W > 0ft

This only means that we can not have a length or width equal to or smaller than zero, as those do not have physical sense.

7 0

3 years ago

Which expression is equalivalent to 2( t-4) + 1

Veronika [31]

Answer:

It's gonna be 2t - 7 my friend

Step-by-step explanation:

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3 years ago

How do you know how many places are in fifty million without writing the number in standard form

wolverine [178]

We know that 1 million has 6 zeros. This means 1 million has 7 place values: one for the 1 and 6 for the zeros.

50 has 1 more place value than one, so 50 million has 1 more place value than 1 million.

So, 50 million has 8 place values.

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3 years ago

Which values are solutions to the inequality below? check all that apply

Aleonysh [2.5K]

Answer:

Step-by-step explanation:

THE ANSWER IS 9

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3 years ago

Kilo typed 1,125 words in 15 minutes let w represent the number of words typed each minute If Lolo typed the same number of word

Alborosie

Answer: