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3 years ago

HELP PLEASE

Mathematics

2 answers:

Alex Ar [27]3 years ago

7 0

Answer: 1/5 x = 10 * 1/5. 1/5x = 2. x = 2*5 = 10

ki77a [65]3 years ago

3 0

The answer is 10 because 6/3(5/1)=10

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A cafeteria can feed 1/8 of the school in 3 1/2 minutes. How long does it take to feed the school?

77julia77 [94]

Answer:

28 minutes

3.5 x 8 = 28

Step-by-step explanation:

Feeding the whole school (8/8) would take 8 times as long as feeding 1/8 of the school.

3 1/2 can become 3.5 if that's easier for you to work with.

Feeding 1/8 of the school is 3.5 x 1 = 3.5

Feeding 2/8 of the school is 3.5 x 2 = 7

Feeding 8/8 of the school is 3.5 x 8 = 28

It takes 28 minutes to feed the whole school (8/8)

6 0

2 years ago

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Clare is painting some doors that are all the same size. She used 2 liters of paint to cover 135 doors. How many liters of paint

pashok25 [27]

Answer:

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Step-by-step explanation:

4 0

2 years ago

Person A can paint the neighbor's house 6 times as fast as Person B. The year A and B worked together it

uranmaximum [27]

Person A takes 2.3 days to paint the house working alone

Person B takes 13.8 days to paint the house working alone

Solution:

Let "x" be the number of days it takes person A to paint the house

Person A can paint the neighbor's house 6 times as fast as Person B

Therefore.

Number of days it takes person B to paint the house = 6x

Their rates of painting are added to get the rate working together

$\frac{\text{1 house}}{\text{x days}} + \frac{\text{1 house}}{\text{6x days}} = \frac{\text{1 house}}{\text{2 days}}$

$\frac{1}{x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{1 \times 6}{6x} + \frac{1}{6x} = \frac{1}{2}\\\\\frac{7}{6x} = \frac{1}{2}\\\\\ x = \frac{7}{3}= 2.3$

Thus person A takes 2.3 days to paint the house working alone

Person B = 2x = 6(2.3) = 13.8

Thus person B takes 13.8 days to paint the house working alone

3 0

2 years ago

Solve: 3x-5y= -15 using y=mx+b method. Show steps

Sliva [168]

3x-5y=-15 What you do to one side, you must do to the other.
-3x -3x
-5y=-3x-15

-5y=-3x - 15
-5 -5 -5

Final Answer: y=3/5x + 3

4 0

2 years ago

Read 2 more answers

Solve the inequality and graph the solution x +1 2/5 _< 6 8/10

mixer [17]

Answer: x < 5 $\frac{2}{5}$

Step-by-step explanation:

x + 1 $\frac{2}{5}$ < 6 $\frac{8}{10}$

x + 1 $\frac{2}{5}$ < 6 $\frac{4}{5}$

x < 5 $\frac{2}{5}$

graph is attached

6 0

1 year ago