Question

I need help pls☹.

Dorothy is taking classes to improve her keyboarding skills. Initially, she can type 140 words in 5 minutes, but after 3 weeks, this rate increases by 25%. How many words can she type in 18 minutes at this new rate?

Answer 1

630 because 140 + 25% = 175

175/ 5=35 and 35* 18 = 630

Answer 2

630 words :D

Explanation:

Initially

140 words in 5 minutes

28 words each minute

3 weeks

increases by 25%

28 times 0.25

25% of 28 is 7

28 + 7

35 words each minute

35 words times 18 minues

630 words