Answer:
x = 6.00 $/kg ----> almond
y = 3.5 $/kg ------> nut
Step-by-step explanation:
To find the price per kg of each product you first write the algebraic equations for the given relations:
x : price per kg of almond
y: price per kg of nut
Then, you have:
5x + 4y = 44.00 (1)
8x + 6y = 69.00 (2)
By using substitution you have from (1):
y = (44.00-5x)/(4) = 11.00 - (5/4)x
you replace this expression for y into (2):
8x+6[11.00-(5/4)x] = 69.00
8x+66.00-(15/2)x = 69.00
8x-(15/2)x = 69.00 - 66.00
(1/2)x = 3.00
x = 6.00 $/kg ----> almond
And for nut:
y = 11.00 - (5/4)x = 11.00 - (5/4)(6.00) = 3.5$/kg
y = 3.5 $/kg ------> nut
Answer:
this is the solution
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Answer: D
Explanation:
Point slope form:
(y - y1) = m(x - x1)
Coordinate given = (2,-6)
Slope = 3/5
Thus:
(y -(-6)) = 3/5(x - 2)
y + 6 = 3/5(x - 2)
Answer:
It's actually -4/5 if you are multiplying -2 times 2/5
-1/5 out of a fraction= -0.2
-4/5 out a fraction= -0.8
Step-by-step explanation:
you basically divide the numbers which turns into a decimal
Answer: y = 48/x
Step-by-step explanation:
y ∝ 1/x
Introducing the proportionality constant, we have
y = k/x
substituting the value of x and y , we have
6 = k/8
k = 48
Therefore the equation becomes
y = 48/x