All categories

4 years ago

Can anyone Explain in words why these are equivalent expressions.

Mathematics

2 answers:

Ahat [919]4 years ago

8 0

Answer:

They are equivalent expressions because if you use distributive property and multiply 10*b, then multiply 10*4c, you get 10b+40c

Step-by-step explanation:

N76 [4]4 years ago

4 0

Answer:

The distributive property says that when there is a number outside of parenthesis, this means it should be distributed (or multiplied) to the values inside the parenthesis.

So in this situation, 10 x b = 10b

and 10 x 4c = 40 c

so 10(b + 4c) becomes 10b + 40c once the 10 is distributed within the parenthesis.

I hope this helps!

You might be interested in

The height and radius of a right cylinder are each 6 cm.

Marianna [84]

The volume of a cylinder can be found using the formula πr²h.

V = (3.14)(6)²(6)
V = 678.24 cm³

From the answer choices it will be:

V = π(6)²(6)
V = 216π cm³

So the answer is answer choice B.

Hope this helps :)

8 0

4 years ago

Read 2 more answers

A home-based sign company uses this function to model its monthly profit, where x is the price of each sign it sells. what is th

SpyIntel [72]

The profit made is $4,460.

What is a profit in business?

In its simplest form, it's the amount left after subtracting your total expenses from your total revenue.
The money remaining, your profits, can either be kept in the business and re-invested to finance future growth, or distributed as a draw or dividends to stakeholders.

The profit model, P(x) = -10x² + 498x - 1,500

Where, x = price per sign sold

If the price per sign sold is $20. Hence, x = $20

The profit made can be calculated thus :

Put x = 20 in the profit function :

P(20) = -10(20)² + 498(20) - 1,500

P(20) = - 10(400) + 9960 - 1500

P(20) = - 4000 + 9960 - 1500

P(20) = $4,460

The profit made is $4,460

Learn more about profit

brainly.com/question/15036999

#SPJ4

4 0

2 years ago

5x-2y=-3 -2x-y=-6 método de reducción suma y resta con procedimiento y respuesta doy corona a quien me ayude en menos de media h

maw [93]

Answer:

(1, 4)

Step-by-step explanation:

5x-2y=-3 -2x-y=-6 =>

5x-2y=-3

-2x-y=-6 Multiply all three terms by -2: 4x + 2y = 12

Then we have:

5x-2y=-3

4x + 2y = 12

---------------------

9x = 9 and so x = 1. Then, using -2x - y = -6, and substituting 1 for x:

-2(1) - y = -6, or

2 + y = 6, or

y = 4

Then the solution is (1, 4)

6 0

3 years ago

We have a biased coin (probability of heads is equal to 1/4). Consider the following 2 step process: In the first step we flip t

Mademuasel [1]

Answer:

See the attached pictures for answer.

Step-by-step explanation:

See the attached picture for detailed explanation.

6 0

3 years ago

On February 1, the electricity meter reading for the Smith residence was 19,423 kilowatt hours. On March 1, the meter read 20,28

Karolina [17]

A. How many kilowatt hours of electricity did the Smiths use during February?

Kilowatt hours of electricity the Smiths used during February:
Meter read on March 1 - meter read on February 1 =
20,288 kilowatt hours - 19,423 kilowatt hours =
865 kilowatt hours
Answer: The Smiths used 865 kilowatt hours of electricity during February

b. How many kilowatt hours did they use during March?

Kilowatt hours of electricity the Smiths used during March:
Meter read on April 1 - meter read on March 1 =
21,163 kilowatt hours - 20,288 kilowatt hours =
875 kilowatt hours
Answer: The Smiths used 875 kilowatt hours of electricity during March

8 0

4 years ago