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faust18 [17]
3 years ago
11

A piece of work takes 20 labourers to complete in 10 days. how many labourers will complete the same job in 25 days if they work

at the same rate?​
Mathematics
1 answer:
horrorfan [7]3 years ago
6 0

Step-by-step explanation:

If 20 labourers=10 days

x labourers = 25 days

10x= 25×20

\frac{10x}{10} =  \frac{25 \times 20}{10}

Cancelling out by 10 on both sides

x = \frac{25 \times 2}{1} \\ x = 50

Therefore, it takes 50 labourers to complete the work at the same rate in 25 days.

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-3(y-5)=24 what is the value of y
Gemiola [76]
Step 1
distribute the -3
-3(y-5)=24
-3y+15=24
step 2
subtract 15 from both sides
-3y =9
Step 3
divide -3 on both sides
y=-3
5 0
3 years ago
AB = 44 + 3xBC = 33 + yCD = 64 − xAD = 48 − 2yQuadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruen
Otrada [13]

The lengths (in centimeters) of the opposite side pairs are 59 cm , 38 cm. Option C) is the correct answer.

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

<u>step 1</u> :

Given that,

Quadrilateral ABCD is a parallelogram if both pairs of opposite sides are congruent.

<u>step 2</u> :

The opposite sides are AB and CD respectively.

The another opposite sides are BC and AD respectively.

<u>step 3</u> :

If both pairs of opposite sides are congruent, then

AB = CD

44+3x = 64-x

3x+x = 64-44

4x = 20

x = 5

<u>step 4</u> :

BC = AD

33+y = 48-2y

y+2y = 48-33

3y = 15

y = 5

<u>step 5</u> :

Subsitute x=5 and y=5 in any of the given sides,

CD = 64-x = 64-5 = 59

∴ CD = 59 cm

BC = 33+y = 33+5 = 38

∴ BC = 38 cm

The lengths of the opposite side pairs are 59 cm , 38 cm.

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3 years ago
Barb is making a bead necklace she strings 1 white 3 blue then 1 white 3 blue
Dahasolnce [82]
Then 1 white, then 3 blue then 1 white
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8^15÷8^−3 im lost i dont get this whole simply thing at all
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3 years ago
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What is 258/300 as a percent
Step2247 [10]
To transform it into percent we want to have 100 into denominator. The easiest way is divide numerator and denominator by 3 (thats because than it doesnt change the value of fraction), so:
\frac{258}{300}= \frac{258:3}{300:3}= \frac{86}{100} = 86% - its the result
4 0
3 years ago
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