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KengaRu [80]
3 years ago
15

A bookstore has a sale: Jen wants to buy four books: for $10.00, for $12.00, for $15.00, and for $20.00. What is the smallest sh

e could pay for these books during the sale? By what percent would the sale reduce the total cost of these four books?

Mathematics
1 answer:
kolezko [41]3 years ago
6 0

Answer:

$47, 17.5%

Step-by-step explanation:

When she buys the $20 book, she can get 40% off either the $15, $12, or $10 book.  She'll save the most by getting 40% off the $15 book.

Then, when she buys the $12 book, she'll get %40 off the $10 book.

The total she pays is:

20 + (0.60)(15) + 12 + (0.60)(10)

20 + 9 + 12 + 6

47

Without the discounts, the cost of the books would have been:

20 + 15 + 12 + 10

57

So she saves $10.  10 out of 57 is approximately 17.5%.

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Brian is building a rectangular pool that has a circular island in the middle. If he wants the length to be 25ft long, the width
Readme [11.4K]

Answer:

368.72 ft^2

Step-by-step explanation:

25x15-2π

=375-2π

~368.72

7 0
3 years ago
PART TWO MATH TEST :)<br><br> Please Help! I will give brainliest and donuts &lt;33
ra1l [238]
Hey there,

Question #1

The answer would be in the attachment below.
_____________________________________________________________

Question #2

The answer would be in the attachment below.
_____________________________________________________________

Question #3

The answer would be in the attachment below.
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Question 4#

The last one was kind of tricky. But, as I saw this attachment, I noticed on how the rectangle was actually 3/4 on the base and for the height, it was 1/2. So by doing this,we need to find the area, and we would multiply these both. 1/2 x 3/4 =  3/8 but by looking at your options, those are not simplified so . . .your answer would be 6/16 because 3x2=6 & 8x2=16.
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I really hope this can help you Amanda.

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6 0
4 years ago
Parallelogram H G J L is shown. Diagonals are drawn from point H to point J and from point G to point L and intersect and point
Ghella [55]

Answer:

50 units.

Step-by-step explanation:

It is given that HGJL is a parallelogram and diagonals intersect each other at point K.

HK=c-7,JK=3c-33,GK=c+12

We now that diagonals of parallelogram bisect each other. So,

HK=JK

c-7=3c-33

33-7=3c-c

26=2c

Divide both sides by 2.

13=c

Now,

GK=c+12=13+12=25

Diagonals of parallelogram bisect each other. So,

GL=2(GK)=2(25)=50

Therefore, the measure of GL is 50 units.

4 0
3 years ago
Read 2 more answers
The parents of three children, ages 1, 3, and 6, wish to set up a trust fund that will pay X to each child upon attainment of ag
ehidna [41]

Answer:

The equation of <em>Z</em> is: Z=X(v^{17}+v^{15}+v^{12})+Y(v^{20}+v^{18}+v^{15})

Step-by-step explanation:

  • The first child is of age 1 year.

        Then the amount invested for the 1-year old is: Xv^{17}+Yv^{20}

  • The second child is of age 3 years.

        Then the amount invested for the 3-year old is: Xv^{15}+Yv^{18}

  • The third child is of age 6 years.

        Then the amount invested for the 6-year old is: Xv^{12}+Yv^{15}

The one-time investment will be:

Z=Xv^{17}+Yv^{20}+Xv^{15}+Yv^{18}+Xv^{12}+Yv^{15}\\=X(v^{17}+v^{15}+v^{12})+Y(v^{20}+v^{18}+v^{15})

6 0
3 years ago
A turtle is moving 17 inches per minute. How many yards per hour is it moving? (Note 1 yard = 3 ft )
KIM [24]

Answer:

28.3 yards per hour

Step-by-step explanation:

36 inches=1 yard

17inches*1 yard           =.47 yards

               /36 inches

In one minute, the turtle moves .47 yards.

60 minutes=1 hour

60minutes * .47 yards =28.3 yards per hour

3 0
3 years ago
Read 2 more answers
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