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bonufazy [111]
3 years ago
10

The book fair a sale where 4 books were $31.36.If you wanted to buy 3 books, how much money would you need

Mathematics
2 answers:
mote1985 [20]3 years ago
8 0

Answer:

$23.52

Step-by-step explanation:

So first you would have to find how much each one would be if you were buying one individual book.  For that you would do 31.36/4 to get $7.84.  Then since you found that for only 1 book, you would need to multiply that by 3 to get $23.52

Alexandra [31]3 years ago
5 0

Answer:

<em>oof. i am not good at these.</em>

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soldi70 [24.7K]

Answer:

Its #1

Step-by-step explanation:

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3 0
3 years ago
Which of the following is a solution of y - x &gt; -3? <br> (6, 2)<br><br> (2, 6)<br><br> (2, -1)
Margarita [4]
(2, 6)
x = 2 
y = 6
 y - x > -3
6 - 2 > -3
4 > -3
Therefore the answer is (2, 6)
6 0
3 years ago
A number z, when rounded to the nearest whole, is equal to 70. Find the upper and lower bound of x
rusak2 [61]

Answer:

A quick way to calculate upper and lower bands is to halve the degree of accuracy specified, then add this to the rounded value for the upper bound and subtract it from the rounded value for the lower bound.

4 0
2 years ago
Does anyone Know what y = 1.6x + 48?
mel-nik [20]

Answer:

49.6 is what y is equal to

Step-by-step explanation

6 0
3 years ago
A giant scoop, operated by a crane, is in the shape of a hemisphere of radius 21 inches. The scoop is used to transfer molten st
eduard

Answer:

31.5 in

Step-by-step explanation:

  • Volume of a hemisphere = (2/3)\pir³
    (where r is the radius)
  • Volume of a cylinder = \pir²h
    (where r is the radius and h is the height)
  • radius r = (1/2) diameter

First, find the volume of the scoop using the volume of a hemisphere formula with r = 21:

Volume = (2/3)\pi x 21³ = 6174\pi in³

Now equate the found volume of the scoop to the equation of the volume of a cylinder with r = 14, and solve for h:

                                            \pi14²h = 6174\pi

                                            196\pih = 6174\pi

 Divide both sides by \pi:        196h = 6174

Divide both sides by 196:          h = 31.5

Therefore, the height of the molten steel in the storage tank is 31.5 in

3 0
2 years ago
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