6x+3y=12. so... 6x=12-3y.
6x-5y=60, so... 6x=60+5y
As 6x=6x
12-3y=60+5y
12-60=8y
8y=-48
So y=-48/8=-6
When y=-6,
6x-5(-6)=60
6x+30=60
6x=30
Therefore x=5.
So x=5 and y=-6.
Answer:
Each oven is discounted by $40
Step-by-step explanation:
Total discount for 12 ovens is $480, so:
$480/12 = $40
$40 discount per oven.
C because first you do ( 4+2 ) = 6 and 10 - 6 = 4
Since we have that the volume of a sphere is given by:

And we have that the diameter equals 3.6ft, we then will have a volume of:

Since we have that the volume is approximately 13.74 ft^3, then the best approximation in the problem is A. 13.6 ft^3.
Week 0 he practices 0 hours
week 1 he practices 3.25 hours