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3 years ago

15

All books are on sale for 25% off. If Pam bought a book originally priced at $32 and had a coupon for another 25% off, how much

did she pay (not including sales tax)?

1 answer:

Molodets [167]3 years ago

3 0

Answer:

$24

Step-by-step explanation:

if you multiply 32 by .25 you get 8 which i subtracted from 32 to get the original price

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Please round to nearest hundredth and give explanation.

skelet666 [1.2K]

Answer:

I think PR = 20 but I'm not sure

8 0

3 years ago

Pls answerrr (i will mark as brainlist)

Firdavs [7]

Answer:

Hope the below answer is easy to understand

Step-by-step explanation:

1) Given the four angles of a quadrilateral are in the ratio 1:2:3:4

Then Let the angles are x,2x,3x and 4x

We know that total of four angles of a quadrilateral =360 °

∴x+2x+3x+4x=360 °

⇒10x=360 °

⇒x=36 °

hence the measures of angles are 36 ° ,72 ° ,108 ° ,144 °

2) Measure of interior angle of a polygon= 180°.

Sides of the polygon = 7 sides

Therefore,

Interior angle of the polygon having 7 sides = 180/7 = 25 5⁄7°

3 0

3 years ago

Any one help me with this plsss and ni links plss!!

Bas_tet [7]

Answer:

6. D.

7. F.

8. A.

9. B.

10. C.

Step-by-step explanation:

6. 9 + (12 - 10)

12 - 10 = 2

9 + 2 = 11

7. (20 - 15) x 2

20 - 15 = 5

5 x 2 = 10

8. 10 ÷ 5 + 7

10 ÷ 5 = 2

2 + 7 = 9

9. 6 + 2 x 3

2 x 3 = 6

6 + 6 = 12

10. (2 x 4) + 8

2 x 4 = 8

8 + 8 = 16

Let me know if this helps!

4 0

3 years ago

Dr. David Smith lived 1/13 of his life as a child. He spent 4/39 of his life preparing for an outstanding

stich3 [128]

Answer:

40 14/25 years

Step-by-step explanation:

Well, this certainly is fun.

First, to find the fraction of the doctor's life which 13 years represents, subtract the fractions from 1 (and in this case l stands for lifetime):

$13 = (1 - (\frac{1}{13} + \frac{4}{39} + \frac{1}{2}))(l)$

$13 = (\frac{25}{78})(l)$

So, multiply this equation by the reciprocal of 25/78 to isolate one of l:

$13(\frac{78}{25}) = l$

$l = 40\frac{14}{25}$ years

4 0

2 years ago

The claim is that the proportion of drowning deaths of children attributable to beaches is more than 0.25, and the sample statis

Ainat [17]

Answer:

The test statistic Z = 3.125

Step-by-step explanation:

<em>Given Population proportion P = 0.25</em>

<em>Given sample size 'n' = 696</em>

<em>Sample proportion 'p⁻' = 0.30</em>

Test statistic

$Z = \frac{p^{-} -P}{\sqrt{\frac{P Q}{n} } }$

$Z = \frac{0.30-0.25}{\sqrt{\frac{0.25 X 0.75}{696} } } = 3.125$

<u><em>Final answer</em></u>:-

The test statistic Z = 3.125

3 0

3 years ago