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3 years ago

HELP I NEED HELP ASAP

Mathematics

2 answers:

Veronika [31]3 years ago

8 0

Answer:

the answer is no. D

Step-by-step explanation:

irga5000 [103]3 years ago

7 0

Answer:

Oh, yes it is D

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Write area or perimeter for each situation .Carpeting a floor?

aliya0001 [1]

Perimeter is the outside of it and the perimeter is the inside of it, so I'm pretty sure you would have to do both but if u have to do one then I would go with area

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3 years ago

The sum of two numbers is 30.the first number is 1/5 of the second number. what are the numbers?

sattari [20]

The numbers are 25 and 5.

Method:

5x + x = 30

6x = 30

x = 30/6

x = 5

Second number = 30 - 5 = 25

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4 years ago

30 inches in centimetres

aleksley [76]

Answer:

76.2 cm

Step-by-step explanation:

If you convert, said inches, it wouldn't be an exact number, but it would equal 76.2.

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3 years ago

Find the distance between two points that have the same y-coordinate.

Luden [163]

Answer:

Which y coordinate? Please specify...

Step-by-step explanation:

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3 years ago

Read 2 more answers

Two pipes are used to fill a 300-gallon tub with water. The wide pipe can fill the tub in x hours. The narrow pipe can fill the

Hoochie [10]

Answer:

$\frac{6}{x}-\frac{7}{y}=\frac{7}{12}$

Step-by-step explanation:

#We know that the filling taps will run for a cumulative 4hrs each while the draining hole will empty for a combined 7hrs.

Let x be the rate of the first filling tap, and 2x of the 2nd filling tap and y be the rate of the hole.

#The rate at which the tub fills per hour is :

$V_{tub}=\frac{1}{x}+\frac{1}{2x}-\frac{1}{y}\\\\=\frac{1}{x}(1+\frac{1}{2})-\frac{1}{y}\\\\=\frac{3}{2x}-\frac{1}{y}$

#The volume of the tub at the instant moment the leak is repaired is expressed as:

$V_{tub}=\frac{3}{2x}t_1-\frac{1}{y}t_2=\frac{7}{12}, \ \ \ \ \ \ t_1=4,t_2=7\\\\\\\frac{3}{2x}\times 4-\frac{1}{y}\times7\frac{7}{12}\\\\\\\frac{6}{x}-\frac{7}{y}=\frac{7}{12}$

Hence, the volume of the tub after the leak is repaired is expressed as $\frac{6}{x}-\frac{7}{y}=\frac{7}{12}$

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3 years ago