Answer:
a= 1/2p-b
Step-by-step explanation:
p=2a+b
divide by 2 on both sides
1/2 p = a+b
subtract b from both sides
1/2 p - b = a
flip equation (not needed, just personal preference)
a= 1/2p-b
(Sorry if I didn't understand well enough and got it wrong)
Answer:
Width <= 5 and length <= 9
Step-by-step explanation:
Width: x
Length: x+4
2x + 2(x+4) <= 28 (less or equal)
2x + 2x + 8 <= 28
4x <= 28-8
x <= 20/4
x <= 5
Answer:
y = -1/2x + 5/2 or y = -0.5x + 2.5
Step-by-step explanation:
perpendicular lines have reciprocated slopes (opposite signs and values)
y = 2x + 1 → y = (-1/2x) + b
plug in (3,1) to find b
1 = -1/2(3) + b
1 = -1.5 + b
2.5 = b
y = -1/2x + 5/2 or y = -0.5x + 2.5
Answer:
x=29 CEF=103 BEF=58
Step-by-step explanation:
161=3x+16+2x
5x=145
x=29
Pedro must make $330 on the 6th day to have a mean average of $200.
Step-by-step explanation:
<u>Formula for Mean Average</u>
Mean Average = 
<u>DATA:</u>
1st day = $120
2nd day = $110
3rd day = $200
4th day = $300
5th day = $140
6th day = x
<u>Solution:</u>
Mean Average =
200 = 
200*6 = 870+x
1200 - 870 = x
x = 330
Pedro must make $330 on the 6th day to have a mean average of $200.
Keyword: Mean
Learn more about mean at
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