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3 years ago

HELP! Please explain how to do this!

Mathematics

1 answer:

Stells [14]3 years ago

4 0

$45 paid first, then marked it up by 15%:
$45 x 1.5 = $67.50

To find 36% of $67.50:
X/67.50 = 36/100 (cross multiply)
67.50 x 36 = 2430
X(100) = 100X
2430 divided by 100 = 24.30

He spent $24.30 on books! (36%)

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What is slop intercept from

Nat2105 [25]

Answer:

Slope-intercept form, y=mx+b, of linear equations, emphasizes the slope and the y-intercept of the line. Watch this video to learn more about it and see some examples.

Step-by-step explanation:

8 0

4 years ago

Krystal buys a bag of cookies that contains 9 chocolate chip cookies, 7 peanut butter cookies, 7 sugar cookies and 7 oatmeal rai

d1i1m1o1n [39]

Answer:

7/145

Step-by-step explanation:

We have

9 chocolate chip cookies

7 peanut butter cookies

7 sugar cookies

7 oatmeal raisin cookies.

9+7+7+7 = 30 cookies.

What is the probability that Krystal randomly selects a peanut butter cookie from the bag, eats it, then randomly selects another peanut butter cookie?

Initially, there are 30 cookies, 7 of which are peanut butter cookies. So the probability that Krystal selects a peanut butter from the bag is 7/30.

Suppose she selected the peanut butter cookie. Now there are 29 cookies, of which 6 are peanut butter. So the probability that the second one is a peanut butter cookie is 6/29.

Probability that both are peanut butter cookies:

Multiplication

$P = \frac{7}{30}\frac{6}{29} = \frac{7}{145}$

5 0

3 years ago

-2(x+1)=-3 what does x equal<br> Using distributive property

Luda [366]

Answer:

X=1/2

Step-by-step explanation:

-2x1/2=-1

-2x1=-2

-1+-2=-3

4 0

4 years ago

Read 2 more answers

Answer asap thanks!!

Dmitry_Shevchenko [17]

Step-by-step explanation:

(5-\/5)²

25-10\/5+5

30-10\/5

Here, a=30 and b=-10

3 0

3 years ago

Use any model you choose to solve the story problem.

Triss [41]

She used 1/3 or the paint on each fence post

7 0

3 years ago