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Tasya [4]
3 years ago
9

A room covers 299.6 square feet. A painter paints the room in three days. The first day he covers 2/7 of the area. The next day

he covers twice as much. How many square feet does he cover on the last day?

Mathematics
2 answers:
Alborosie3 years ago
5 0

Answer:

128.4 feet

is the answer

Trava [24]3 years ago
4 0

Answer:

<em>On day the he covers </em>128.4 ft²

<u>Step-by-step explanation</u>:

Lets first figure out how much he has done so far

To figure out how much he does we can use a proportion

Set up a proportion for first day

2/7 = x/299.6

Solve the proportion

2×299.6÷7 = 599.2/7 = x

x = 85.6

<em>He covered 85.6 sq/ft on day 1</em>

Find day two

85.6 * 2 = 171.2

Find how much is left to do on day 3

299.6-171.2 = 128.4 ft²

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Martin runs 100 meters in 15 seconds. What is the equation for d, the distance in meters that Martin covers per second?
Marizza181 [45]
The answer is d x 15 =100

In order to get the value of d, you must transpose the constant 15 to the left side of the equation.

It can also be written like this:

15d = 100

Divide both sides by 15:

15d / 15 =100/15

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3 years ago
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What is x if x+85=x+105
vaieri [72.5K]

Answer:x+85=x+105

x+x=105+85

2x=190

x=190/2

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Step-by-step explanation:

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3 years ago
The perimeter of the flag is 2080 ft what is the flags width and length of the length is 420 ft greater than the width
hram777 [196]

Answer:

The length of the flag is 730 ft and the width is 310 ft

Step-by-step explanation:

<u><em>The correct question is</em></u>

The perimeter of the flag is 2080 ft what is the flags width and length <u>if</u> the length is 420 ft greater than the width

Let

L ----> the length of the flag

W ---> the width of the flag

we know that

The perimeter of the flag (rectangle) is equal to

P=2(L+W)

we have

P=2,080\ ft

so

2,080=2(L+W)

1,040=L+W ----> equation A

L=W+420 ---> equation B

Solve the system by substitution

substitute equation B in equation A

1,040=(W+420)+W

solve for W

1,040=2W+420

2W=1,040-420

2W=620

W=310\ ft

<em>Find the value of L</em>

L=W+420 ----> L=310+420=730\ ft

therefore

The length of the flag is 730 ft and the width is 310 ft

5 0
3 years ago
Rewrite 9.524 as a mixed number in lowest terms
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Answer:   9 132

                 ----------

                    250

9.524 = 9 + 0.524 = 9 + 524       =  9 524 =    9 524:2 = 9 262 =   9 134

                                      -----------       -----------       -----------    ---------     ---------

                                        1000             1000        1000:2     500          250

8 0
3 years ago
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