Question

by what number should we add in 4% to get 1%​

Answer 1

Answer:

By what number should 1/4 be multiplied to give the result 1?

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What you need to do is divide the number you are looking for by the number you started with.

I don’t do homework, but I’ll help by doing a similar example. Hopefully you can use the same method to answer your homework.

So, my example is: By what number should 1/6 be multiplied to give the result 2?

So, we calculate 2÷16

An important trick is to know that dividing by something is the same as multiplying by 1something and vice versa. So, to divide by 12 is the same as multiplying by 2 , to divide by 2 is the same as multiplying by 12 . To divide by [math]\dfrac{3}{4[/math]

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r={4}

PREMISES

y=1/4×r=1

ASSUMPTIONS

Let r=the number

CALCULATIONS

y=1/4×r=1

1/4/(1/4)×r=1/(1/4)

1×r=4

r=

4

PROOF

If r=4, then the equations

1/4×r=1

1/4×4=1

4/4=1 and

1=1 prove the root (zero) r=4 of the statement 1/4×r=1