I WILL AWARD BRAINLIEST!! PLEASE HELP!!
1 answer:
Answer:
A(...; 9)
x = 57/7
B(4; ...)
y = 16/5
m = 7/5
Step-by-step explanation:
7x−5y=12
For point A(...; 9)
We know y = 9
Substitute it in
7x−5(9)=12
7x -45= 12
Add 45 to each side
7x-45+45=12+45
7x = 57
Divide by 7
7x/7 = 57/7
x = 57/7
For point B(4; ...)
We know x=4
Substitute it in
7(4)-5y =12
28 - 5y =12
Subtract 28 from each side
28-28 -5y =12-28
-5y =-16
Divide by -5
-5y/-5 = -16/-5
y = 16/5
Now we need to find the slope by solving the equation for y
7x -5y = 12
Subtract 7x
-5y= -7x +12
Divide by -5
-5y= -7x +12
-5y/-5 = -7x/-5 +12/-5
y = 7/5 x -12/5
This is in the form y = mx +b where m is the slope
m = 7/5
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Step-by-step explanation:
Answer:
let x =the original price
then 116x/100=$39.32
116x=100×39.32
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divide both sides by 116
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