Question

How much money would Madison make if her "proofreading" money was 20% less than what she was making (remember she used to get $18), if She now only makes 15 cents per error, and this time around, she only finds a ⅓ of the 15 errors she found the first time?

Answer 1

Step-by-step explanation:

Part (a):

Since new payment amount is 20% less than the original, we can write

New Earning = N$_1$ = $18 - (20%) ($18)

N$_1$  = (80%)($18)

N$_1$  = 0.8 * 18

N$_1$  = $14.4

Part (b):

New number of errors are one-third ($\frac{1}{3}$) of the initial 15 errors,

Therefore, new number of errors = E = $15\;*\;\frac{1}{3}$

E = $\frac{15}{3}$

E = 5

It is given that, earnings per error = n = 15 cents = $0.15

Thus, we can calculate the total earnings for new number of errors as follows,

New Total Earning = N$_2$ = n * E

N$_2$ = 0.15 * 5

N$_2$ = $0.75