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stepladder [879]
3 years ago
11

Someone PLEASE HELP ME! I NEED THIS REALLY BAD!!!

Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:

27

55

62

Step-by-step explanation:

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An alloy consists of nickel, zinc, and copper in the ratio 2:7:9. How much alloy can be produced using 4.9 lb of zinc?
Wittaler [7]

Ratio of Nickel to Zinc:

( 2/7 ) = ( Nickel /4.9)

Nickel = 1.4 lbs.

Ratio of Copper to Zinc:

( 9/7 ) = ( Copper /4.9)

Copper = 6.3 lbs.

Alloy = Zinc + Nickel + Copper

Alloy = 4.9 lbs. + 1.4 lbs. + 6.3 lbs.

Alloy = 12.6 lbs.

Hope this answer will be a good h<span>elp for you.</span>
8 0
3 years ago
A carpenter can install 8 sheets of drywall in 10 minutes. At this rate, how long does it take to install one sheet of drywall?
grigory [225]

Answer:

8/10=60/x

600/8=75 minutes=x

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3 years ago
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Vadim26 [7]
The equation is NOT a conic section
5 0
3 years ago
The mean age of 5 people in a room is 28 years.
lina2011 [118]

Answer:

174

Step-by-step explanation:

You should look at the mean and do this:

5*28 so now you know all the ages which is 140 now you do 140/29 and you get 4.8....... so you  can see that the answer is 174

4 0
3 years ago
A car travels 30 – miles in
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Answer:

45.3 miles/h

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Step-by-step explanation:

5 0
3 years ago
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