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alexgriva [62]
2 years ago
15

Last week Jordan had 12 marbles . This week he has 21 marbles what is the percentage of increase in the number of marbles Jordan

has
Mathematics
1 answer:
Elodia [21]2 years ago
8 0

Answer:

75%

Step-by-step explanation:

The <em>number </em>increase is 9. 9 is what percent of 12? 9 is 75% of 12

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Please help me, I have no idea what to do
DochEvi [55]

Answer:

when x equals -3 y equals -23

when x equals 0, y equals -8

when x equals 3, y equals 7

when x equals 6, y equals 22

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
In a certain fraction, the numerator is 4 less than the denominator. If 4 is added to both the numerator and the denominator , t
love history [14]

Answer:

Step-by-step explanation:

If the new fraction is 8/12 I will show how to find it.

Let's say the original denominator is x, then the numerator is x-4, so we have (x-4)/x.

Then it says f we add 4 to both, so now we have x/(x+4) this equals 8/12.  Now, keep in mind -4 cannot be an answer because it would make x/(x+4) be divided by 0 which wouldn't exist.

Now we just use algebra.

x/(x+4) = 8/12

12x = 8(x+4)

12x = 8x + 32

4x = 32

x = 8

So the original fraction (x-4)/x = (8-4)/8 = 4/8

5 0
3 years ago
A=75(125+81/2) how do you this equation? pls Help!!!
Maru [420]
Closing parenthesis is misplaced. Should be: 
<span>A = h(b₁ + b₂)/2 </span>

<span>h = 75 ft </span>
<span>b₁ = 125 ft </span>
<span>b₂ = 81 ft </span>

<span>Then it's just plug & grind: </span>

<span>A = 75(125 + 81)/2 ft² = 75·206/2 ft² = 75·103 ft² = (7500 + 225) ft² = 7725 ft² </span>

<span>If you follow that, it will guide you through any other, similar p</span>
4 0
2 years ago
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How do you know the opposite of a nonzero integer?
Oksi-84 [34.3K]

The opposite of a nonzero integer is the inverse of it. So to get the opposite, change the sign.

For example:

What's the opposite of 3?

-3.

I hope that I explained well :)

3 0
3 years ago
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Find the sum: (6a + 6) + (3x - 2) + (2a + 4)
Cerrena [4.2K]

Answer:

8a + 3x + 8

All you have to do is add numbers around to make the process easier.

7 0
3 years ago
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