Answer:
x = 9.6
Step-by-step explanation:
Given that x varies directly as y then the equation relating them is
x = ky ← k is the constant of variation
To find k use the condition x = 4 when y = 15
k = 
= 
x = y ← equation of variation
When y = 36, then
x = × 36 = 
= 9.6
Y= mx +b
4= 0(-2) +b
4= b
y= 0x +4
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Answer:
Part A:
The y-intercept is 3.25. This shows the point where the line intersects with the y-axis.
Part B:
The slope was found using the points (1,5) and (5,12). 5 -1 = 4, which is the run. 12- 5 = 7, which is the rise. 7 ÷ 4 = 1.75. This is the slope.
Input b and m;
y = 1.75x + 3.25
Now, input x;
y = 1.75(13) + 3.25
y = 22.75 + 3.25
y = 26
After 13 months of practice, the team can expect to win 26 matches.
A) 25x+15y=650
25x+15(40)=650
Or it could be 25x=650 and 15y=650
B) No because she makes $15 for every necklace which she only has 40 necklaces 15x40=600
