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Anna71 [15]
4 years ago
15

Craig and Tom, working together, can clean the house in 8 hrs, working alone, Tom takes four times as long as Craig, How long do

es it take Craig to clean the house?
Mathematics
2 answers:
aksik [14]4 years ago
5 0

Let x = Craig's time

Let y = Tom's time

Create a system of equations to solve this problem.

8 = x + y

y = 4x

Substitute 4x into the y variable in the first equation.

8 = x + 4x. Combine like terms

8 = 5x. Divide each side by 5.

1.6 = x

Craig takes 1.6 hours to clean the house

alisha [4.7K]4 years ago
4 0

Answer:

they

Step-by-step explanation:

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Toby goes on holiday to Geneva, Switzerland. In Geneva, Toby sees a watch costing 193.75 CHF (swiss france). In Manchester, an i
evablogger [386]

Answer:

Part a) In Geneva the watch is cheaper

Part b) The watch in Geneva is \£20 cheaper than the same watch in Manchester

Step-by-step explanation:

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

a) In which city is the watch cheaper?

b) By how much is it cheaper (in £)?

Part a)

Transform CHF\ to\ \£ in order to work with the same currency and make the comparison

If \£1=1.55CHF

193.75\ CHF=193.75(\frac{1}{1.55})=\£125

Now we can make the comparisons:

In Geneva the watch costs

\£125

and

in Manchester it costs

\£145

\£125 < \£145

therefore

In Geneva the watch is cheaper

Part b)

If we want to know by how much is cheaper, subtract from the expensive price the value of the cheaper price

\£145-\£125=\£20

Therefore

The watch in Geneva is \£20 cheaper than the same watch in Manchester

3 0
3 years ago
Help plz (problly easy for you)
PolarNik [594]

The second option: 4x² - x + 1

All you have to do is add the like terms:

3x² + x² = 4x²

4x - 5x = -x

-2 + 3 = 1

Combine all the results and you will get your solution!

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4 years ago
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Novay_Z [31]

Answer:

Step-by-step explanation:

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