All of your choices are the same, but if I were to solve it, it be 4.331507 x 10 to the power of 6 because the decimal should be in between the last digit (7) and an imaginary 0 you could say. Sort of like this 4331507.0 also remember to not add commas, they confuse many people into thinking they're decimal points
Answer:
The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.
Step-by-step explanation:
If x is the rate of the first mechanic, and y is the rate of the second mechanic, then:
10x + 5y = 1500
x + y = 195
Solve the system of equations using elimination or substitution. Using substitution:
10x + 5 (195 − x) = 1500
10x + 975 − 5x = 1500
5x = 525
x = 105
y = 195 − x
y = 90
The first mechanic charges $105 per hour, and the second mechanic charges $90 per hour.
Answer:
y = 1/2x + 6
Step-by-step explanation:
y = 1/2x + b
5 = 1/2(-2) + b
5 = -1 + b
6 = b
Answer:
10x - 4y = 16
Step-by-step explanation:
2(5x - 2y = 8)
10x - 4y = 16
