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sleet_krkn [62]
3 years ago
13

Batteries are packed at 12 packages to a box. a box of batteries costs $51.00. how much do 7 packages costs?

Mathematics
1 answer:
ziro4ka [17]3 years ago
6 0

Answer:

$29.75

Step-by-step explanation:

What you need to do is divide 51 by 12 to get 4.25.

Then you are going to multiply 4.25 by 7 to get 29.75.

You want to find your unit rate first.

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If x + y = 9, z + y = 12, and z + x = 11, what is the average (arithmetic mean) of x, y and z?
Tatiana [17]
x+y=9 \\ z + y = 12 \\  z + x = 11 \\ x+y+ z + y+ z + x=9+12+11 \\  2x+2y+ 2z=32 \\ x+y+ z=16

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4 years ago
The length of the hypotenuse of a 30 -60 -90 triangle is 16. What is the perimeter?
Brums [2.3K]
For a Right triangle with 30-60-90 degrees, the sides have specific ratios. If we assign a length of 1 to the short side (opposite 30), the hypotenuse will be 2, and the other leg will be square root 3.

Given that the hypotenuse is 16 in this triangle, we will need to multiply each of our ratios given above by 8 (16/2)

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24 + 8 sqrt(3)

The answer is B
3 0
3 years ago
2) ONE 200 - Gram bag of rice cost $8.12. How much does 1 kilogram of rice cost? (Note that 1000g = 1kg.)
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1000 gram = 1 kilogram
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How might a psychiatrist describe a paper plate?
spayn [35]

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3 0
4 years ago
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