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hichkok12 [17]
3 years ago
7

Please help!

Mathematics
1 answer:
Aloiza [94]3 years ago
7 0

Answer:14%

Step-by-step explanation:

final grade score=a

20% of a=15

20/100 x a=15

20a/100=15

Cross multiply

20a=15 x 100

20a=1500

Divide both sides by 20

20a/20=1500/20

a=75

B% of 75=10.5

B/100 x 75=10.5

75B/100=10.5

Cross multiply

75B=10.5 x 100

75B=1050

Divide both sides by 75

75B/75=1050/75

B=14

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A quter of 30 is=<br> pleas help
cupoosta [38]

Answer:

7.5

Step-by-step explanation:

If 'quter' is quarter, then 30(1/4) is 7.5

7 0
2 years ago
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Milton took out a loan for S2400 at 7% interest compounded annually the makes yearly payments of $140, will he ever pay off the
labwork [276]

Answer:

We will choose option D.

Step-by-step explanation:

Milton took out a loan for $2400 at 7% interest compounded annually.

So, after one year his loan will grow up to 2400(1 + \frac{7}{100} )^{1} = 2568 dollars.

Therefore, the interest added to the principal is $(2568 - 2400) = $168

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6 0
3 years ago
Solve w^2 + 7w - 18 = 0<br><br>with the steps pls​
Bess [88]

Answer:

w=2  w = -9

Step-by-step explanation:

w^2 + 7w - 18 = 0

We can factor this equation

What 2 numbers multiply to -18 and add to 7

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4 0
2 years ago
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Can someone please help, I’ll mark as brainliest
BaLLatris [955]

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(-inf,3)

Step-by-step explanation:

6 0
3 years ago
cassidy loves black and yellow jelly beans she noticed when she was counting them that she had 7 less than three times as many b
Dmitriy789 [7]
Most of the information's are already given in the question. It is important to understand the language of the problem for solving the problem. Once the language is understood, then solving the problem is easy.
Let us assume the number of black jelly beans = x
Number of yellow jelly beans = y
Then from the question we can get to a equation.
3x - 7 = y
We also know from the question that
x + y = 225
x + 3x -7 = 225
4x = 225 + 7
4x = 232
x = 232/4
   = 58
So Cassidy has 58 black jelly beans out of the total of 225 jelly beans
4 0
3 years ago
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