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vovangra [49]
3 years ago
7

Whats the answer ?????

Mathematics
2 answers:
wolverine [178]3 years ago
7 0

46.06 would be the answer

dmitriy555 [2]3 years ago
7 0

The answer is exactly 51.94 .

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Kevin, can clean a stadium in 5 hours working alone. Chris, can
LenaWriter [7]

Answer: It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

Step-by-step explanation:

Given : Time taken by Kevin to clean a stadium = 5 hours

Rate of work done by Kelvin =\dfrac{1}{5}

Time taken by Chris to clean a stadium  = 3 hours

Rate of work done by Chris =\dfrac{1}{3}

Let t be the time taken by both of them to clean the stadium together.

According to the question , we have

Rate of work done together = Rate of work done by Kelvin+Rate of work done by Chris

\dfrac{1}{t}=\dfrac{1}{5}+\dfrac{1}{3}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{3+5}{15}\\\\ \Rightarrow\ \dfrac{1}{t}=\dfrac{8}{15}\\\\\Rightarrow\ t=\dfrac{15}{8} =1.875

t=1+0.875 hours

t=1\text{ hour }+0.875(60)\text{ minutes}  [∵ 1 hour = 60 minutes]

t=1\text{ hour }+52.5\text{ minutes}= \text{1 hour 52.5 minutes}

Hence, It will about 1.88 hours or 1 hour 52.5 minutes to clean the stadium if they work together .

5 0
3 years ago
-3 1/2 + ( -6 1/2) =<br> 5/8 - {-2/8} =<br> - 9/10 - 2/5 =<br> 6 3/5 - (-2 1/5)
marin [14]

Answer:

-3 1/2 + ( -6 1/2) =  -10

5/8 - {-2/8} =  7/8

- 9/10 - 2/5 =  -4

6 3/5 - (-2 1/5) = 44/5

Step-by-step explanation:

-3 1/2 + ( -6 1/2) =  <em>-7/2 + (-13/2) = -20/2 =</em><em><u> </u></em><em><u>-10</u></em>

5/8 - {-2/8} =  <em>5/8 + 2/8 = </em><u><em>7/8</em></u>

- 9/10 - 2/5 =  <em>-18-2/5 = -20/5 = </em><u><em>-4</em></u>

6 3/5 - (-2 1/5) = <em>33/5 + 11/5 = </em><em><u>44/5</u></em>

4 0
3 years ago
Find the length of the missing side (nearest tenth).<br> 25 yd<br> 37 yd
Ket [755]

Answer:

27.3 yards

Step-by-step explanation:

Since this triangle is a right triangle, this can be solved using the equation:

a^2 + b^2 = c^2

c^2 is the side opposite to the right angle (37)

So, you need to change the equation to where it is set equal to b^2.

Subtract a^2 on both sides.

b^2 = c^2 - a^2

Now, plug in the numbers you have.

b^2 = 37^2 - 25^2

Simplify.

b^2 = 1369 - 625

b^2 = 744

Now, to find b, take the square root of 744.

√744 = 27.3

8 0
3 years ago
Read 2 more answers
Find the diameter, area and circumference.<br> 11<br> 0
12345 [234]

Answer:

diameter = two times the radius

2r

the area = πr²

the circumference= 2πr

hope it helps

3 0
3 years ago
Find the measure of each angle
dolphi86 [110]

Answer: x=36°

Step-by-step explanation:

The four interior angles of a quadrilateral always equal 360°, so:

(x+16)+(4x-8)+(4x-8)+x=360

Combine like terms:

360=10x+0

360=10x

36=x

8 0
3 years ago
Read 2 more answers
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