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MAVERICK [17]
3 years ago
6

Stuck on this question... will give brainliest

Mathematics
2 answers:
alina1380 [7]3 years ago
6 0
What is the question ?
Sveta_85 [38]3 years ago
3 0

Answer:

which qn..?

Step-by-step explanation:

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An electric plant consumed 420 tons of coal in 6 weeks. At this
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Answer: 700 tons of coal consumed in 10 weeks.

Step-by-step explanation:

first you find how much coal is consumed in 1 week which is 70 tons, then you multiply the 70 tons by 10 weeks because you are trying to find how much tons of coal can be consumed in to weeks and when you do that you should get 700 tons of coal for 10 weeks.

4 0
3 years ago
What is 2 3/4 times 1/2 in lowest terms
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The lowest term would be 1 3/8
Please mark brainliest
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4 years ago
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Make a line that’s congruent to the line seg
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4 years ago
There are 10 girls and 5 boys in a classroom. Of
Mazyrski [523]

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3 0
3 years ago
M is a directly proportional to r cubed when r=4 M=160
Paraphin [41]

Answer:

1) When r = 2, M = 20.

2) When M  = 540, r = 6.

Step-by-step explanation:

M is a directly proportional to r cubed

This means that the equation for M has the following format:

M = ar^3

In which a is a multiplier.

When r=4 M=160.

We use this to find a. So

M = ar^3

160 = a(4^3)

64a = 160

a = \frac{160}{64}

a = 2.5

So

M = 2.5r^3

1) work out the value of M when r=2

M = 2.5*2^3 = 2.5*8 = 20

When r = 2, M = 20.

2) work out the value of r when M=540

M = 2.5r^3

540 = 2.5r^3

r^3 = \frac{540}{2.5}

r^3 = 216

r = \sqrt[3]{216}

r = 6

When M  = 540, r = 6.

7 0
3 years ago
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