X^2+11x+18<0 ----- Subtract 18 from both sides
(x+2)(x+9)=0-------- Factor the left side
------Set factors equal to zero
Your answer is -9<x<-2
Ten plus five equals 15. 8 plus 2 = 10.
Answer:
The mean hourly snowfall is 2.5 centimeters
Step-by-step explanation:
The mean hourly snowfall is the number of centimeters that fell during the period divided by the number of hours.
From 5 P.M. to 9 P.M., there are 4 hours
At 5 P.M., the total snowfall is 2 centimeters.
At 9 P.M., the total snowfall is 12 centimeters.
So in those four hours, the depth of snow increases 12-2 = 10 centimeters
10/4 = 2.5
The mean hourly snowfall is 2.5 centimeters
Answer:
$0.76
Step-by-step explanation:
3.79+2.57+5.8=12.16
12.16 x 0.0625=0.76
To solve this, you have to add all the prices together and then convert the percentage into a number so that you can multiply it by the total sales. You end up with 0.76 cents as the taxes for Akio's Purchase.You convert the percentage by moving it backward 2 decimal places.
Each bracelet costs $2.75
She sells them for $7
She makes 7-2.75 = $4.25/bracelet
Let b = # bracelets
To make a profit she has to earn more than $775
4.25b > 775
b > 775/4.25
b > 182 6/17
To make a profit she must sell at least 182 bracelets
