If x is directly proportional to y, it means that as x increase, y also increases and vice versa. This could be done another way. Since I am already given a point of x and y, I could simply find the difference between x and y, which would be 12 in this case. To find the x value when y is 24, I would simply either add or subtract that difference. Depending on which of the x or y value is higher. In this case, since we are solving for y and y is larger than x, I would subtract it. Meaning x would be 12.
Answer:
10
Step-by-step explanation:
(x + 2) + (-2 + x) = 20
2x + 0 = 20
2x = 20
x = 20/2
x = 10
Answer:
10 months
Step-by-step explanation:
Our initial cost is $55
Our variable cost is $19.50 / month (lets call it 19.50m)
Chelsey has $250 dollars to spend.
Our equation would be as follows:
19.50m + 55 = 250 (this tells how many months plus the initial cost will be covered by the 250 dollars)
19.50m +55 -55 = 250 - 55
19.50m = 195
19.50m/19.50 = 195/19.50
m = 10
Chelsey can afford the initial membership fee and 10 months of club membership.
Answer: this is a continuation starting in number 4 (use the same steps as example 3)
Step-by-step explanation:
-12
45
-12
14
32
-2
5
Y=2x+1 where the slope is 2/1 and the y intercept is 1