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Iteru [2.4K]
3 years ago
13

Sophie can peel all the potatoes by herself in 45 minutes, while it would take Simon 30 minutes to do the job working alone. If

Sophie and Simon work together to peel the potatoes, how long will it take them?
Mathematics
1 answer:
Degger [83]3 years ago
7 0

Answer:

18 minutes

Step-by-step explanation:

Sophie can peel all potatoes in 45 minutes, in 1 minute she can peel:

  • 1/45 of all the potatoes

Simon can peel all potatoes in 30 minutes, in 1 minute he can peel:

  • 1/30 of all the potatoes

Together, in 1 minute they can peel:

  • 1/45+1/30= 2/90+3/90= 5/90= 1/18 of all the potatoes

To peel all the potatoes they need:

  • 1 ÷ 1/18= 1 × 18= 18 minutes

So it will take them 18 minutes to peel all the potatoes

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rodikova [14]
So.
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Let's get started with formulas.
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I KNOW you hate formulas!! So do I, but we have to use them. No "buts". 
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So, how many minutes are in 2 weeks?
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Search it up. For your convenience, it is 20,160 minutes.
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Well, I think you have your answer, since each quiz is 5 minutes, 5 times 50 (5 x 50) is 2,500 minutes.
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Hope I helped!!
8 0
4 years ago
Read 2 more answers
The value of sales at the shop decreases from 145,000 a year to 129,000 find the percentage decrease in the value of sales
iren [92.7K]

Answer:

11.0344828%

Step-by-step explanation:

145000 - 129000 = 16000.

16000/145000 = 16/145 = 0.110344828

Therefore there was a 11.0344828% decrease

5 0
3 years ago
Read 2 more answers
Please help!!!<br> picture below
iVinArrow [24]

Answer:

4^3x=4^(4x+4)

Step-by-step explanation:

You can eliminate the first 2 options since those don’t make sense already, and the last option changed 64 to 2^6 which is correct, but when they changed the other side. They should have multiplied 8 to both x and 1 which would have made the whole term 2^(8x+8) and not 2^(8x+1). Left with the third option, 4 to the power of 3 is 64 so the left side makes sense, 4^3x=64^x, on the right side, 4^4 equals 256, so the whole exponent should multiply by 4 so from 256^(x+1) you get 4^4(x+1) giving 4^(4x+4) making the third choice the right answer.

6 0
2 years ago
The first week they drank 2 gallons 1quart and 1cup. The second week the drank 3 gallons how much more cups of milk did they dri
stellarik [79]

Answer:

11 cups

Step-by-step explanation:

there are 4 quarts in a gallon

and there is 4 cups in a quart

the first week there was 37 cups of milk or 2 gallons 1 quart and 1 cup

the second week there was 11 more cups drinking making a total of 48 cups

4 0
3 years ago
...............????​
Montano1993 [528]

Answer:

As Perimeter of rectangle =2(l+b)

Let original length & bredth of rectangle be L & B

⇒ 2(L−5+B−5)=26

⇒ 2(L+B−10)=26

⇒ 2(L+B)=46

⇒ L+B=23

7 0
3 years ago
Read 2 more answers
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