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3 years ago

A MACHINE WORKED 5 HOURS USING 4 KILOWATTS OF ELECTRICITY. HOW MUCH WOULD MACHINE HAVE USED IN KILOWATT EACH HOUR WORKED

1 answer:

5 0

4 kilowatt is a power, not work done.

If the machine works using power at the rate of 4 kilowatt, then it is using 4 kilowatt each hour.

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It takes 8 people to clear an acre of weeds in 4 hours. How many acres can 16 people clear in 4 hours? How many acres can 2 peop

Stella [2.4K]

It will take 2 hours for 16 people to clear an acre of weeds, and 8 hours for 2 people to clear an acre of weeds.

5 0

3 years ago

How do I solve this question?

Sati [7]

Answer:

m=2 and n=3

Step-by-step explanation:

<u>Step</u> :-

Given $[ 2 x^{n}y^{2} ]^m = 4 x^6 y^4$

using algebraic formula $(a^m)^n= a^{mn}$

now

$2^{m} x^{mn} y^{2m} = 4x^{6} y^{4}$

now equating 'x' powers, we get

$x^{mn} = x^{6}$

$mn=6$ ....(1)

now

$y^{2m} = y^{4}$

Equating 'y' powers ,we get

2 m=4

m=2

substitute m= 2 in equation (1)

we get

2 n=6

n=3

verification:-

substitute m=2 and n=3 , we get

$[ 2 x^{n}y^{2} ]^m = 4 x^6 y^4$

$(2 x^{3} y^2)^2 = 4 x^6 y ^4\\$

$4 x^6 y^4 = 4 x^6 y^4$

both are equating so m= 2 and n=3

4 0

2 years ago

Pls help me find the answer of the ratio

cricket20 [7]

Answer:

pretty sure it's 10 1/2

3 0

2 years ago

Read 2 more answers

The largest perfect square factor of 252 is _____

slega [8]

Answer:

Step-by-step explanation:

252 is a composite number. The exponents in the prime factorization are 2, 2, and 1. Adding one to each and multiplying we get (2 + 1)(2 + 1)(1 + 1) = 3 x 3 x 2 = 18. Therefore 252 has 18 factors.

5 0

3 years ago

Given circle Q with a measure of SR=120° and a radius of 9 feet, as shown below.

DiKsa [7]

Answer:

The arc length of the entire circle would be 2*PI*9

We need to know the arc length of 1/3 of the circle so we calculate

arc length = (2 * PI * 9) / 3

arc length = 2 * PI * 3

arc length = 6 * PI

arc length = 18.8495559215

Step-by-step explanation:

5 0

3 years ago