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Grace [21]
3 years ago
13

Shakira went bowling with her friends. She paid $3 to rent shoes and then $4.75 for each game of bowling. If she spent a total o

f $42, then how many games did Shakira bowl?
Mathematics
2 answers:
DaniilM [7]3 years ago
6 0
They played 9.17 games
BlackZzzverrR [31]3 years ago
4 0
X = # of games playing

4.75x + 3 = 42
4.75x = 39
       x = 39 /4.75
       x = 8.21

answer
<span>Shakira played about 8 games</span>
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La repuesta es 375,porque 3+7+5 es 15,y 15x25 es 375. Tambien el digito de las decenas es uno menos que la suma de los digitos de las centenas y de las unidades.
5 0
3 years ago
Write in standard notation 6.12 x 10 to the 3rd power
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6.12 x 10^3 = 6120 .........<span> in standard notation
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7 0
3 years ago
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What is the inverse operation for addition?
Naddik [55]
1. SUBTRACTION

inverse means opposite. The opposite of addition is SUBTRACTION.

2. 4.25x + 7 = 24

a) 4

b) 2.125

c) 7

d) 20

All these values (as shown above) are what x is like when added up together. The first one (a) is correct. The others are wrong.

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3 0
3 years ago
A candy box is made from a piece of cardboard that measures 23 by 13 inches. Squares of equal size will be cut out of each corne
wolverine [178]

Answer:

2.67 inches.

Step-by-step explanation:

Assuming that we represent the size of the squares with the letter y, such that after the squares are being cut from each corner, the rectangular length of the box that is formed can now be ( 23 - 2y), the width to be (13 - 2y) and the height be (x).

The formula for a rectangular box = L × B × W

= (23 -2y)(13-2y) (y)

= (299 - 46y - 26y + 4y²)y

= 299y - 72y² + 4y³

Now for the maximum volume:

dV/dy = 0

This implies that:

299y - 72y² + 4y³ = 299 - 144y + 12y² = 0

By using the quadratic formula; we have :

= \dfrac{-b \pm \sqrt{b^2 -4ac}}{2a}

where;

a = 12; b = -144 and c = 299

= \dfrac{-(-144) \pm \sqrt{(-144)^2 -4(12)(299)}}{2(12)}

= \dfrac{144 \pm \sqrt{20736 -14352}}{24}

= \dfrac{144 \pm \sqrt{6384}}{24}

= \dfrac{144 \pm79.90}{24}

= \dfrac{144 + 79.90}{24} \ \  OR  \ \   \dfrac{144 - 79.90}{24}

= 9.33 \ \  OR  \ \ 2.67

Since the width is 13 inches., it can't be possible for the size of the square to be cut to be 9.33

Thus, the size of the square to be cut out from each corner to obtain the maximum volume is 2.67 inches.

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