Mary's usual typing speed is x words/minute. If Mary types 8 words per minute faster than her usual speed,
she takes 5 minutes less to finish typing a passage of 1200 words. Find the value of x.

the solution is the point

step-by-step explanation:

we have

> equation a

> equation b

adds equation a and equation b

substitute the value of x in equation b to find the value of y

the solution is the point

need more detail

step-by-step explanation:

lele

this is the formula: v = the value of investment at the end of the time period

p = the principal amount (the initial amount invested)

r = the annual interest rate

n = the annual frequency of compounding (how many times a year interest is added)

t = the number of years the money is invested

^ means raise to the power of