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3 years ago

15 minutes into decimal

Mathematics

1 answer:

prohojiy [21]3 years ago

3 0

the answer is 0.25

I got this out of mt textbook not to long ago

hope this helped

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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

6 0

2 years ago

PLZ I NEED THIS ASAP!! ILL GIVE YOU BRAINLIST!!

saul85 [17]

Answer:

yes

Step-by-step explanation:

Because all the numbers are the same

8 0

2 years ago

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Jethro has paid his annual taxes.He knows that his tax is 27% of his taxable income.If he made $68,000 last year,which proportio

Hatshy [7]

Answer:

$\frac{x}{68,000}= \frac{27}{100}$

Step-by-step explanation:

Let

x ----> amount that Jethro owes in taxes

we know that

Amount that he made last year $\$68,000$

His tax rate $27\%=\frac{27}{100}$

Applying proportion

$\frac{x}{68,000}= \frac{27}{100}$

solve for x

$x=68,000(27)/100\\x=\$18,360$

4 0

2 years ago

Ivana and Gloria are sisters. Gloria is

Marina CMI [18]

Answer:

11 years old

Step-by-step explanation:

3 years ago, Gloria was 32 years old

If Ivana's age is = x

Then, 4x = 32

x = 8

3 years ago, Ivana was 8 years old

So now she is 11 years old.

4 0

2 years ago

What does ± indicate when its used like 2±1?

boyakko [2]

Answer:

it is in quadratic equation meaning you use Plus or minus

6 0

2 years ago

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