Answer:
(-6,18)
Step-by-step explanation:
3x + 2y = 18
2y= -3x + 18
y=-3/2 x + 18
give x=0
y=-3/2 *0+18
y=18#
y=18
3x+2(18)=18
3x+36=18
3x=18-36
3x=-18
x=-18/3
x=-6
Answer:
7:00
Step-by-step explanation:
First I figured out the MPH for the ride there by dividing 350 by 5 which was 70 MPH which is the average rate of speed. Next, I subtracted by 20 since the ride home his average speed was 20 less than before which got me 50 MPH. Then, I divided 350 by 50 to get the hours it took him with his setback which was 7. Lastly, I added 7 hours to noon (12:00) and got 7:00
Answer:
324/3=108
Step-by-step explanation:
division
Answer:
x+y =13
10x + 9y =122
Step-by-step explanation:
Hi, to answer this question we have to write a system of equations:
The sum of the hours he worked washing cars (x) and the hours he worked walking dogs(y) will be equal to the total hours worked (13)
For the second equation the product of the number of hours he worked washing cars(x) and the price per hour ($10) plus the product of the number of hours he worked walking dogs (y) and the price per hour ($9) will be equal to the total amount earned (122)-
So, the system of equations is:
Where:
x: number of hours Jose worked washing cars
y: number of hours Jose worked walking dogs