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Firdavs [7]
3 years ago
11

Make x the subject of the formula x(2+a)=b(x+3)

Mathematics
2 answers:
Serggg [28]3 years ago
8 0

x( 2 + a ) = bx + 3b

x( 2 + a ) - bx = bx - bx + 3b

x ( 2 + a - b ) = 3b

x ( 2 + a - b ) ÷ ( 2 + a - b ) = 3b ÷ ( 2 + a - b )

x = 3b / 2 + a - b

Ahat [919]3 years ago
6 0

Answer:

x=3b/(2+a-b)

Step-by-step explanation:

x(2+a)=b(x+3)

2x+ax=bx+3b

2x+ax-bx=3b

x(2+a-b)=3b

x=3b/(2+a-b)

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1 p
dlinn [17]

Answer:

V = pi * R^2 * h

R = (V / (pi * h))^1/2 = (141.3 / (3.14 * 5))^1/2 = 3 cm

8 0
3 years ago
Martha estimated there were 96 marbles in a jar for a contest. The actual number of marbles in the jar was 118. What was the per
matrenka [14]
To find percent error, you subtract the actual number from your estimate, take the absolute value, and divide by the actual number.

l 96 - 118 l
l -22 l
l 22 l
l 22 l / 118
0.19%  (this was rounded)

Hope this helps!
3 0
3 years ago
A magician is performing for an audience of 32 men and 20 women. He selects a volunteer from the audience, has the volunteer sta
statuscvo [17]
32+20=52 so there are 52 people in all. 
32/52  people are men.
we now have to subtract 1 from this fraction like so 32-1/52-1 since the magician took away 1 man from the audience (therefore reducing the amount of men as well as the audience as a whole) resulting in 31/51
we multiply 32/52 with 31/51 to get 248/663. simply turn this fraction into a percent by multiplying the quotient by 100 and rounding it to the nearest tenth to get 37.4%
6 0
3 years ago
PLS HELP WILL MARK YOU BRAINLIEST, NO FAKE ANSWERS!!
Makovka662 [10]

Answer:

1. if x + 5 = 12, then x = 7

:Subtraction property of equality

2. If x + y = 20, and y = 5, then x + 5 = 20.

<u>:Substitution property of equality</u>

3. If 2x3 = 11, then 11 = 2x - 3.

<u>:Symmetric property of equality</u>

3 0
3 years ago
3x=3(3x+1)<br> x=(3x+1)<br> -2x=1<br> x=- 1/2
Gemiola [76]
You got the equation correct
6 0
3 years ago
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