Answer:
Step-by-step explanation:
1. x^2 + 6x = 5
x^2 + 6x + 9 = 14
(x+3)^2 = 14
x = - 3
2. x^2 + 8x -4 = 0
x^2 + 8x = 4
x^2 + 8x + 16 = 20
(x+4)^2 = 20
x = - 4
What is 5 multiplied by 4 5/6 as a mixed number or a fraction
1 answer:
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Step 1
Let
x------> the cost in dollar
y-----> the pounds of grapes
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or
The line in the graph represent a direct variation
Find the constant of proportionality k
------> substitute point B ----->
The slope is equal to the constant of proportionality
so
the linear equation is
therefore
<u>the answer Part a) is</u>
For every dollar you spend, you can get pounds
Step 2
Find the cost for one pound of grapes
Let
substitute the value of g in the linear equation and solve for c
therefore
<u>the answer Part b) is</u>
For each pound of grapes, you would need