x and y varies directly and the equation will be: y=480.x
Step-by-step explanation:
We need to write the equation to represent the relationship between x and y
We can find if x and y varies directly or indirectly.
Checking if x and y varies directly
if x and y varies directly then y=kx or y/x = k then k is constant
if x=2 and y=960 then k is:
k=y/x= 960/2 = 480
if x=2 and y=960 then k is:
k=y/x = 1440/3=480
if x=2 and y=960 then k is:
k=y/x= 2880/6=480
if x=2 and y=960 then k is:
k=y/x=3840/8 = 480
Since y/x = 480 for every value of y and x in the table, so x and y varies directly and the equation will be:
y= kx
y=480.x
Keywords: Finding Relationship between x and y
Learn more about finding relationship between x and y at:
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We have 55% and 80% antifreeze. We need 90 gallons of 75%.
F - 55% and E - 80%
A) F + E = 90
B) .55 F + .80 E = 67.50 (which is .75 * 90) Multiplying A) by -.55
A) -.55 F -.55 E = -49.50 (which is -.55 * 90) then adding A) & B)
.25 E = 18
E = 72 gallons of 80% and
F = 18 gallons of 55%
********* DOUBLE CHECK ******************
72 * .80 = 57.60 and 18 * .55 = 9.90
57.60 + 9.90 = 67.50 gallons of antifreeze and we have 90 total gallons
(67.50 / 90) * 100 = 75% correct!
Source: 1728.com/mixture.htm
Evaluate the function would be= x^2-f-x
a is height p is perimeter
Answer:
r = 7 q - 34
Step-by-step explanation:
Solve for r:
-34 + 7 q - r = 0
Subtract 7 q - 34 from both sides:
-r = 34 - 7 q
Multiply both sides by -1:
Answer: r = 7 q - 34
