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2 years ago

PLEASSSSE HELPPP

Mathematics

1 answer:

nikitadnepr [17]2 years ago

4 0

What does Y equal I need that to be able to help you

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evablogger [386]

Answer:

I think the last you already have is right. I wasn’t very good at this but I try

Step-by-step explanation:

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1 year ago

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Westkost [7]

Answer:

1.333 repeated

Step-by-step explanation:

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2 years ago

Quick please , find the volume of the shape

Blizzard [7]

Answer:

7068.58 Cubic inch

Step-by-step explanation:

$V=\frac{2}{3} \pi r^{3} =\frac{2}{3} \pi 15^{3}=7068.58 in^{3}$

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2 years ago

Jane has a pre-paid cell phone with Splint. She can't remember the exact costs, but her plan has a monthly fee and a charge for

yan [13]

Answer:

The costs of the plan are $0.15 per minute and a monthly fee of $39

Step-by-step explanation:

Let

x ----> the number of minutes used

y ----> is the total cost

step 1

Find the slope of the linear equation

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

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

we have the ordered pairs

(100,54) and (660, 138)

substitute

$m=\frac{138-54}{660-100}$

$m=\frac{84}{560}=\$0.15\ per\ minute$

step 2

Find the equation of the line in point slope form

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

we have

$m=0.15\\point\ (100,54)$

substitute

$y-54=0.15(x-100)$

step 3

Convert to slope intercept form

Isolate the variable y

$y-54=0.15x-15\\y=0.15x-15+54\\y=0.15x+39$

therefore

The costs of the plan are $0.15 per minute and a monthly fee of $39

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2 years ago

ANSWER QUICK!!!!

deff fn [24]

Answer:

Step-by-step explanation:

When we write an equation, we look for something like is or equals

A.twice as much as a number 2x

B.12 less than a number x-12

C.half of a number is 15 1/2x =15

D.the difference of 20 and a number? 20-x

A,B, and D are expressions

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2 years ago

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