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stira [4]
2 years ago
10

10 men can do the work in 8 days. how many men should be reduced to finish the work in 10 days​

Mathematics
1 answer:
e-lub [12.9K]2 years ago
7 0

If Reducing 2 men will bbe enough too finish the work in 10 days

For rate of work use the formualar

rate of work = quantity of work / duration

10 men can do the work at a rate of  =  1 / 8

x men can do same work at a rate of = 1 / 10

x * ( 1 / 8 ) = 10 * ( 1 / 10 )

x = 1 * 8 = 8

therefore 8 men can do the work in 10 days

number of men reduced = 10 men - 8 men = 2 men

Hope it helped

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nexus9112 [7]
Using cosine law and considering the angle ABC is 89 you can deduce that AC is 6.3
6<6.3
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7 0
3 years ago
The ratio of side lengths of a quadrilateral is 3 : 5 : 6 : 9, and its perimeter is 9.2cm. What is the length of the longest sid
wolverine [178]

Answer:

longest side=3.6

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perimeter= sum of all side

9.2=3x+5x+6x+9x

9.2=23x

x=9.2÷23

x=0.4

9x=9×0.4=3.6

6x=6×0.4=2.4

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5 0
3 years ago
HELP PLEASE!!!
melamori03 [73]

Answer: £30.20

We can say, 4kg of copper is mixed with 1kg of Zinc to make 5 kg of brass.

So to make 7 kg of brass we need to find out how much kg is copper and zinc mixed.                                                                                                                             Just increase one kg in both the weight, 5kg of copper and 2kg of zinc makes it 7kg of brass. (Technical thinking)

Now that we know the proportions of the metals so find out the costs of each kg of it.

Copper: 1 kg costs £5

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Zince: 1 kg costs £3.20

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Now add them, £5.20 + £25 --> £30.20

So, the cost of 7kg of brass is £30.20

8 0
3 years ago
Cory makes a map of his favorite park, using a coordinate system with units of yards. The old oak tree is at position (3, 7) and
ololo11 [35]

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Given

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Distance between them is given by distance formula i.e.

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Distance between them is

\Rightarrow d=\sqrt{(-2-3)^2+(6-7)^2}\\\Rightarrow d=\sqrt{(-5)^2+(-1)^2}\\\Rightarrow d=\sqrt{25+1}=\sqrt{26}\approx 5.09\ \text{units}

7 0
2 years ago
Zach bought two new jet skis for $15,480. He will make 36 equal payments. How much will each payment be?
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6 0
3 years ago
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