Water flowing from a faucet can fill 1/4 of a tank in 3 minutes. How long does it take to fill the tank completely with water?

Answers

Answer 1

Answer: it takes 12 minutes to fill the tank completely with water.

Answer 2

Answer: 12 mins because 1/4 +3/4=4/4 so you do 3x4 =12 so the answer is 12 minutes

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-5+1/5a=4solution again.
What 3/8 divided by 48
Find the area of the semicircle.Either enter an exact answer in terms of or use 3.14 for and enter your answer as a decimal.
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Joanna split three pitchers of water equally among her eighth plants. What fraction of a pitcher did each player get? A.1/8 of a pitcher

B.1/7 of a pitcher

C.3/8 of a pitcher

D.8/3 of a pitcher

Answers

C. Since 3÷8=3/8. You could also multiply 3/8×8 which is simply adding 3 eight times.

6x-1/5 = 3/1 Solve for x in simplest form.

Answers

6x-1/5=3
add 1/5 to both sides
6x=1/5+3
convert 3 to fraction with 5 as denomenatory
3/1 times 5/5=15/5
6x=15/5+1/5
6x=16/5
divide both sides by 6
x=16/5 times 1/6
x=16/30
x=8/15

Nicole has used 6 feet of ribbon.This represents 3/8 of the total amount of the ribbon she started with. How much ribbon did Nicole have at the start? Draw a picture to help you think.

Answers

3/8x=6.x=6*8/3.x=2*8.x=16.Nicole started with 16 feet of string.

Solve for x and y
-2x-y=-9
5x-2y=-9

Answers

we use equation 1 first.
-2x -y = -9

-y = -9 + 2x

y = 9 -2x

We substitute value of y in equation 2

5x - 2 (9 - 2x) = -9

5x -18 - 4x = -9

5x - 4x = -9 + 18

x = 18 -9

x = 9

We now find the value of y

-2x -y = -9

-2 (9) - y = -9

-18 - y = -9

-y = -9 + 18

y = 9 - 18

y = -9

Find the value of: $27x^(3)+8 y^(3)$ if 3x+2y = 20 and xy = $(14)/(9)$

Answers

$27x^3+8y^3=(3x)^3+(2y)^3=(3x+2y)[(3x)^2-3x\cdot2y+(2y)^2]\n\n=(3x+2y)[(3x)^2+2\cdot3x\cdot2y+(2y)^2-3\cdot3x\cdot2y]\n\n=(3x+2y)[(3x+2y)^2-18xy]=(*)\n---------------------------\n3x+2y=20\n\nxy=(14)/(9)\n------------------------------\n(*)=20\cdot(20^2-19\cdot(14)/(9))=20\cdot(400-18\cdot(14)/(9))=20\cdot(400-2\cdot14)\n\n=20\cdot(400-28)=20\cdot372=7440$

$a^3+b^3=(a+b)(a^2-ab+b^2)\n\n(a+b)^2=a^2+2ab+b^2$

Convert measurement 12,000 lb= T

Answers

6 imperial tons, or approximately 5.3571 metric tons.

yeah it will be 6 tons.

1 ton = 2000 lbs

12,000/2000 = 6 tons

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Frances is sewing a border around 2 rectangular tablecloths that each measure 9 feet long by 6 feet wide. If it takes her 3 minutes to sew on 1 inch of border, how many minutes will it take her to complete her sewing project? Write an expression, and then solve.