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alina1380 [7]
2 years ago
13

Jeff bought 4 oranges and 7 apples for a total of $4.88. Gene bought 12 oranges and 8 apples for a total of $7.88. What is the c

ost of each orange and each apple?
Mathematics
1 answer:
rjkz [21]2 years ago
4 0
4x+7y=4.88 -> mult by -3 -> -12x-21y=-14.64
12x+8y=7.88
-12x-21y=-14.64
Add the two above equations together, the y will be left:
-13y=-6.76
y=0.52 —> cost of each apple (plug back into one of original equations, I chose 4x+7y=4.88:
4x+7(0.52)=4.88
Solve for x.
x=0.31 —> cost of each orange
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Answer:

The equation is given by:

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Step-by-step explanation:

During last years's charity walk, she raised $45.50.

During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

n = \frac{7}{10} \times 45.50

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galina1969 [7]

Answer:

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b. P=0.54

c. P=0.96

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If half of the college graduates are married, then we have:

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- 21% are college graduates and not married.

If 75% of the workers are married, and 21% of the workers are college graduates and married, then (75%-21%)=54% of the workers are not college graduates that are married.

If 25% of the workers are married, and 21% of the workers are college graduates and not married, then (25%-21%)=4% of the workers are not college graduates that are not married.

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8 0
3 years ago
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Answer:

The answers are A, C, & D.

Step-by-step explanation:

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