Answer:
She can type 225 words in 10 minutes
Step-by-step explanation:
We can find the rate by dividing the number of words by the time
90 words/ 4 minutes
22.5 words per minute
Now to find the number of words in 10 minutes, multiply the rate times the time
22.5 * 10 = 225
She can type 225 words in 10 minutes
3x + 1 - 8x +12 =
so 8x - 3x =5x
1 + 12= 13
so answer is 5x+13
C. -4,-5 hope this helps :)
Remember, you can do anything to an equation as long as you do it to both sides
but, for inequalities, if you multiply or divide both sides by a negative, you flip the sign
70+5x<30+15x
minus 5x both sides
70<30+10x
minus 30 both sides
40<10x
divide both sides by 10
4<x
x>4 is the solution set
a real world problem could be
company A charges a flat rate of $70 dollars to rent their car and also charge a rate of $5 per mile driven
company B charges a flat rate of $30 dollars to rent the car and also charge $15 per mile
how many miles do you have to drive for you to pay more for company B than A?
