Answer:
Russell family's sprinkler: 40 hours
Gonzales family's sprinkler: 20 hours
Step-by-step explanation:
Let's call the amount of time the Russell family's sprinkler was on by X, and the Gonzales family's sprinkler by Y.
We can then formulate the equations:
X + Y = 60
X*35 + Y*40 = 2200
We can solve this system multiplying the first equation by 35, and then subtracting the result from the second equation:
35*X + 35*Y = 2100
5*Y = 100
Y = 20
from the first equation:
X + 20 = 60
X = 40
Russell family's sprinkler: 40 hours
Gonzales family's sprinkler: 20 hours
Answer:
vertical angles
Step-by-step explanation:
When two lines intersect at a single point, they form 4 angles. Two angles that are not adjacent are vertical angles. With an intersection of two lines art a single point, there are two pairs of vertical angles. Angles 1 and 2 are vertical angles.
Answer:
x=0 or x=4
Step-by-step explanation:
5x(x−4)=0
Answer:
6 roll for 8.89
Step-by-step explanation:
4roll for 6.79 you pay 1.60 per roll and 6 roll for 8.89 you pay roughly 1.40 per roll
Answer:
no
Step-by-step explanation:
3x=-12
/3 /3
x=-4
:)
