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:
There's nothing to go off of here sweetie . Pat a pic of the question or something next time!
You don't know your terms I suppose.
Arithmetic: goes from one term to the next by adding or subtracting the same amount
Ex. 3,12,21,30,39 (d=9)
(d means difference, use this for arithmetic sequences)
Geometric: goes from one term to the next by multiplying or dividing by the same amount
Ex. 1,2,4,8,16,32,64,128 (r=2) (r means ratio, its just the number multiplied or divided each time)
Answer is c
We know that the angle in a straight line is 180 degrees.
Therefore,
40x - 4y = 180 (1)
20x + 16y = 180 (2)
Multiply (1) by 4, we get,
160x - 16y = 720
20x + 16y = 180 (from (2))
Adding, we get,
180x = 900
Substituting in (1), we get,
40(5) - 4y = 180
200 - 4y = 180
-4y = 180 - 200
-4y = -20