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3 years ago

If you divide 20 by a number will you always get 20%

Mathematics

2 answers:

givi [52]3 years ago

5 0

Answer:

what do you mean

Step-by-step explanation:

iris [78.8K]3 years ago

3 0

Answer:

Step-by-step explanation:

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If C(m) = 0.50m + 30 represents the cost of renting a car, how many miles were driven if cost is $130

FinnZ [79.3K]

Answer:

m=#miles

so 130= .5m+30

subtract 30 from each side

100$= .5m than divide .5 to isolate m

m= 200

Step-by-step explanation:

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4 years ago

(-2.04) (-0.04) What is the product of the expression above?

aleksley [76]

Answer:

0.0816

Step-by-step explanation:

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4 years ago

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I just need number 10 .

Gnoma [55]

A mixed number ? Wouldn't you have to multiply 11 x 6 which equals 66 + 1 = 67 ? Thats how they taught me in elementary school .

5 0

3 years ago

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What is the surface area of a sphere with a diameter of 6 ft

Aleksandr-060686 [28]

Answer: 113.1ft²

Step-by-step explanation:

The answer is 113.1ft²

7 0

3 years ago

Write a linear equation that represents the cost of buying t-shirts from Paula's printing. identify the meaning of each variable

g100num [7]

Answer:

Part 1) $y=x+21.5$

Part 2) $y=x+18$

Step-by-step explanation:

Part 1) Write a linear equation that represents the cost of buying t-shirts from Paula's printing.

Let

x ----> the number of t-shirts

y ----> the cost in dollars

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,23.5) and (4,25.5)

substitute in the formula

$m=\frac{25.5-23.5}{4-2}$

$m=\frac{2}{2}=1$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=1$

$(x1,y1)=(2,23.5)$

substitute

$y-23.5=(1)(x-2)$

Convert to slope intercept form

$y=mx+b$

$y=x-2+23.5$

$y=x+21.5$

Part 2) Write a linear equation that represents the cost of buying t-shirts from Shantay's shirts.

Let

x ----> the number of t-shirts

y ----> the cost in dollars

step 1

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,20) and (4,22)

substitute in the formula

$m=\frac{22-20}{4-2}$

$m=\frac{2}{2}=1$

step 2

Find the equation of the line in point slope form

$y-y1=m(x-x1)$

we have

$m=1$

$(x1,y1)=(2,20)$

substitute

$y-20=(1)(x-2)$

Convert to slope intercept form

$y=mx+b$

$y=x-2+20$

$y=x+18$

6 0

3 years ago