It would be C. im pretty sure. hope that helps you
Answer:
Step-by-step explanation:
If 3⁄4 gallons of water come out of a hose in 15 minutes, to calculate the rate of water that comes out in an hour (60 minutes), we will use the expression;
3/4 gallons = 15 minutes
x gallons = 60minutes
cross multiply
15x = 3/4 * 60
15x = 180/4
15x = 45
x = 45/15
x = 3/1
x = 3:1
Hence the water rate in gallons per hour is 3 gallons per hour
C. 42/6 is 7 and 60/6 is 10. If you divide the numbers by the multiple choice answers, then eventually you will get a whole number that is the lowest possible choice.
Answer:
x < −60
Step-by-step explanation:
<em><u>Step 1: Add 10 to both sides.</u></em>
−0.4x−10+10>14+10
−0.4x>24
<em><u>Step 2: Divide both sides by -0.4.</u></em>
−0.4x / −0.4 > 24 / −0.4
x<−60
You can multiply either the top or bottom equation by -1 so lets say you apply it to the bottom equation it’ll look like this:
-9x + 9y = 18
6x - 9y = 12
then the +9y and -9y will cancel out
-9x = 18
6x =12
then you add the two equations together
-3x = 30
divide both sides by -3
x = -10
