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Maurinko [17]
3 years ago
14

A=a+b+c+d . Solve for c

Mathematics
2 answers:
DerKrebs [107]3 years ago
5 0

Answer:

A = a + b + c + d

c = A - a - b - d


xz_007 [3.2K]3 years ago
4 0

Answer:

A-a-b-d =c

Step-by-step explanation:

A=a+b+c+d

We want to get c alone

Subtract a from each side

A-a = a+b+c+d -a

A-a = b+c+d

Subtract b from each side

A-a -b = b+c+d-b

A-a -b = c+d

Subtract d from each side

A-a-b-d = c+d-d

A-a-b-d =c

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How do you solve -3+r/3=-5
MAVERICK [17]

Answer:

r=-6

Step-by-step explanation:

Question: -3+r/3=-5

1) Multiply both sides of the equation by 3:

-9+r=-15

2) Add 9 to both sides:

r=-6

Footnotes:

1) In step 1 when I multiplied both sides of the equation by 3, don't forget you also have to multiply -3 by 3 because it is not part of the fraction (which is how I got -9)

7 0
3 years ago
how much water must be added to a 9-liter solution that contains 3% extract on baneberry to get a solution that contains 2% extr
yuradex [85]

Answer:

Amount water added = 4.5 L

Step-by-step explanation:

Given:

Amount of solution = 9 L

Amount of bane-berry = 3% of 9 L = 0.27 L

Computation:

Assume;

Amount water added = x L

Total solution = 9+x L

New percentage of bane-berry = 0.27x100/(9+x)

2 = 0.27*100/(9+x)

x = 4.5 L

Amount water added = 4.5 L

6 0
2 years ago
Solve for x.<br><br> X - 2 = 3( 2 - X ) divided by 4
igomit [66]

Answer:

x = 7/12

Step-by-step explanation:

We start off by multiplying both sides by 4:

4(x-2) = 3(2-x)

Distribute the 4 and the 3:

4x - 8 = 6 - 3x

Bring all the terms with the x at the first side:

4x + 3x = 6 + 8

7x = 12

x = 7/12

4 0
2 years ago
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Art [367]

Answer:

49π

Step-by-step explanation:

πr^2

π*7^2

49π

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