First, let the number of skis rented by x and the number of snowboards rented by y. We can then assemble the first equation from the amount of money made from the rentals.
44x + 58y = 2232
The second equation can come from the fact that 9 more skis were rented than snowboards.
y = x - 9
Therefore our system is:
44x + 58y = 2232
y = x - 9
Answer:
the median of this data is 12
The question given above may be answered through the concept of ratio and proportion. The ratio of the man's weight on Earth and Mars should be equal to the ratio of the rock's weight on Earth and Mars. By letting x be the rock's mas on Earth, the equation that would best represent the situation is,
180 / 72 = x / 16
The value of x is equal to 40. Thus, the rock weighs 40 pounds on Earth.
Answer:
x = -6
Step-by-step explanation:
- 1/3 x + 12 = -2x + 2
(- 1/3 x + 1/3) + 12 = (-2x + 1/3) + 2
12 = - 1 2/3x + 2
12 -2 = - 1 2/3x (+ 2 - 2)
10 = - 1 2/3x
x = -6
