Arectangular magazine cover is photocopied by using a scale factor of 1/3. the length of the photocopy of the magazine cover is. a)enlarge by a factor of three b)enlarged by a factor of 1/3 c)reduced by a factor of three d)reduced by a factor of 1/3

Option D. Reduced by a factor of

Step-by-step explanation:

we know that

The scale factor is equal to divide the length of the photocopy of the magazine cover by the length of the original magazine cover

Let

z-----> the scale factor

x------> the length of the photocopy of the magazine cover

y-----> the length of the original magazine cover

so

we know that

If z > 1 ---------> is an enlargement

If z<1 ------> is a reduction

In this problem we have

------> is a reduction

substitute

------> reduced by a factor of

answer: the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.

step-by-step explanation:

the given rate of interest i= 85%

in calculating the monthly payment for a loan with an interest rate compounded monthly, the value of the interest rate per period we use in the formula must be in decimal form.

to convert it in decimal, we divide it by 100, we get

hence, the value should be used for i in the formula of calculation the monthly payment , the interest rate per period is 0.85.