10+3.75h=21.25
Subtract 10 from both sides 3.75h=11.25
Divide each side by 3.75, h=3. Kim rented the kayak for three hours.
Answer:
<h2>C. m > -19</h2>
Step-by-step explanation:
3m + 5 > 2(m - 7)
3m + 5 > 2m - 14
3m - 2m > -14 - 5
m > -19
<h2>MARK ME BRAINLIST</h2>
Answer:
Sorry i think they are negatives
Step-by-step explanation:
Answer: the cost per unit of gas is $0.38
Step-by-step explanation:
Let x represent the cost per unit of electricity.
Let y represent the cost per unit of gas.
During one month, a homeowner used 600 units of electricity and 100 units of gas for a total cost of $344. It means that
600x + 100y = 344- - - - - - - - - -1
The next month, 400 units of electricity and 250 units of gas were used for a total cost of $299.
It means that
400x + 250y = 299- - - - - - - - - -1
Multiplying equation 1 by 400 and equation 2 by 600, it becomes
240000x + 40000y = 137600
240000x + 150000y = 179400
Subtracting, it becomes
- 110000y = - 41800
y = - 41800/- 110000
y = 0.38
Substituting y = 0.38 into equation 1, it becomes
600x + 100 × 0.38 = 344
600x + 38 = 344
600x = 344 - 38 = 306
x = 306/600
x = 0.51