3 years ago

How to solve 5(x+10) + 2x

Mathematics

1 answer:

sveta [45]3 years ago

6 0

Expand

5x+50+2x5x+50+2x

Collect like terms

(5x+2x)+50(5x+2x)+50

Simplify

The answer is 7x+50

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Tanya [424]

Answer:

$2.50$

Step-by-step explanation:

Given

$(x_1,y_1) = (-1,0.8)$

$(x_2,y_2) = (0,2)$

$(x_3,y_3) = (1,5)$

$(x_4,y_4) = (2,12.5)$

Required

The rate of change (b)

The above graph is represented as:

$y = ab^x$

For: $(x_2,y_2) = (0,2)$ ;

We have:

$y = ab^x$

$2 = a * b^0$

$2 = a *1$

$2 = a$

$a = 2$

For $(x_3,y_3) = (1,5)$ ,

We have:

$y = ab^x$

$5 = a * b^1$

$5 = a * b$

Substitute $a = 2$

$5 = 2 * b$

Divide by 2

$2.5 = b$

$b = 2.5$

Hence, the rate of change is 2.50

7 0

3 years ago

What is the difference between 2,386 and 7,000? A. 9,386 B. 4,614 C. 5,614 D. 10,386

Anuta_ua [19.1K]

If you would like to know what is the difference between 7000 and 2386, you can calculate this using the following steps:

difference between 7000 and 2386:
7000 - 2386 = 4614

The correct result would be B. 4614.

7 0

3 years ago

What is the decimal form of 18/20?

kompoz [17]

Just divide 18 by 20 , so its 0.9

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3 years ago

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Goshia [24]

I used my graphing calculator and it shows its graph C

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4 years ago

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lana [24]

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3 years ago