Answer: Option D) 6
Solution:
xy=k
What is the constant of variation: k=?
when x=-3 and y=-2
Replacing the knwon values in the given equation:
xy=k; x=-3, y=-2
(-3)(-2)=k
Multiplying the values:
6=k
k=6
Answer: slope is -3 and y-intercept is -2
Step-by-step explanation:
when x= 0, y=-2
when x=1, y=-5
i believe you have just to change the value of the letter x in the equation to find the value of y
1: 61 2: 119 4: 119 5: 119 6: 61 7: 119
A + b = 10 pounds
rewrie as:
a = 10 pounds - b
0.75a + 0.50 b = $6.00
replace a with the above equation:
0.75(10-b) +0.50b = 6.00
distribute the(10-b):
7.50 - 0.75b + 0.50b = 6.00
combine like terms:
7.50-0.25b = 6.00
subtract 7.50 from each side:
-0.25b = -1.50
divide both sides by 0.25 to find b
b = -1.50 / -0.25
b = 6
she bought 6 pounds of bananas and 4 pounds of apples
