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erica [24]
3 years ago
10

An electric motor uses 6kw at an efficiency of 63%. How much power does it deliver?

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
7 0
The delivered power is:
6\times0.63=3.78
The answer is 3.78kW.
amm18123 years ago
7 0
Efficiency=<span>output power / input power </span>∗ 100<span>%</span>
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Chris’s new car gets 42 miles per gallon. What is the equation that represents y, the total miles driven on x gallons of gas?
Fantom [35]

Answer: I think the answer is B

Step-By-Step Explination:

First you find out what x is by doing 42 multiplying it by 0.1 witch equals 4.2 gallons per mile

Next you figure out what y is by doing 4.2y (witch is 4.2 times y)

4 0
3 years ago
Sofia takes 10mg of a medicine whose concentration in blood decreases by a factor of one half every day. Let t be the number of
adelina 88 [10]

Answer:

L = 10(\frac{1}{2} )^{t-4}

Step-by-step explanation:

If t is the number of days since Sofia took the medication of 10 mg, then the amount of medication in her system after t days will be S = 10(\frac{1}{2} )^{t}.

So, the concentration of medicine in blood decreases by a factor of one half every day.

If we count the number of days from today and Lexi takes 10 mg of the same medicine four days later then the amount of medicine left on her body after t days will be L = 10(\frac{1}{2} )^{t-4}. (Answer)

3 0
3 years ago
Read 2 more answers
Niña jumps 225 times in 3 minutes. At this rate how many times can she jump in 5 minutes
Tresset [83]
225/3 = 75
75 x 5 = 375

Hope this helps.
5 0
3 years ago
Read 2 more answers
In a certain chemical,The ratio of zinc to copper is 3 to 11.A jar of the chemical contains 286 grams of copper.how many grams o
BabaBlast [244]

Answer:

The jar of chermical contains 66g of Zinc.

Step-by-step explanation:

The ratio of Zinc to Copper is 3 : 13

A jar of the chemical contains 286g of copper.

Let the mass of the Zinc be xg.

13/3 = 286/x

x = 3A286/13= 66g

So the jar of chemical contains 66g of Zinc.

8 0
3 years ago
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The original price of a computer was reduced by 225 dollars. The new discounter price is 1274 dollars.
Svetlanka [38]

Answer:

1499

Step-by-step explanation:

Given that :

New discounted price = 1274

Let original price = p

Reduction in original price = 225

Original price is the sum of the reduction and the new discounted price

The Original price = Reduction in original price + new discounted price

P = 225 + 1274

P = 1499

8 0
3 years ago
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