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Vikentia [17]
2 years ago
11

Tommy can lay a brick walkway by himself in 12 hours. Robert does the same job in 10 hours.

Mathematics
1 answer:
Lapatulllka [165]2 years ago
8 0

Answer:

5 5/11 hours

Step-by-step explanation:

So, there is a trick to doing this.

You would first need to get their work rate into the same measurements.

That's why we will find out how much they each work in one hour.

Tommy does 1/12 of the work in one hour while Robert does 1/10.

Here we can add them both up to make 11/60.

They finish 11/60 of the work in one hour.

They finish the job in 5 5/11 hours.

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2.1 liters of coffee were equally distributed to 30 cups how many millimeters of coffee were in each cup
sattari [20]

Answer: 70 ml of coffee in each cup


Step-by-step explanation:

1 liter = 1000 ml

Amount of coffee given = <em>2.1 liters</em>

\Rightarrow <em>2.1 liters =  2.1 * 1000 = 2100 ml</em>

Total number of cups = 30

\therefore Amount of coffee in each cup = \frac{Total\ amount \ of \ coffee}{number\ of  \ cups} = \frac{2100}{30} =70

<em>∵ Amount of coffee in each cup </em>= <u>70 milliliters</u>

4 0
3 years ago
Read 2 more answers
HELO ASAP CONVERT ALL OF THE FOLLOWING TO STANDARD NOTATIONS
konstantin123 [22]

Answer:

5. 78300000

6. 25000

7. 0.000008345

8. 0.003

Step-by-step explanation:

when the exponent is negative, the decimal moves to the left

when the exponent is positive, the decimal moves to the right

7 0
2 years ago
Maria makes a fruit salad. The table shows the amounts of different kinds of fruit that she uses.
Elena-2011 [213]
Your answer is 3 1/4
3 0
2 years ago
42,199,279 rounded to the nearest ten million
Simora [160]

Answer:

40,000,000

42,199,279

^

Closer to 40,000,000, if it was 5 or over, it would round up to 30,000,000

8 0
3 years ago
This i all the instruction there is please help me, I'm very confused.
astra-53 [7]
So first you would have to work with the y's since they are consecutive angles.Consecutive angles would add up to 180 so the problem would be
5(y+11)^0+4y-10=180 then simplify
10+4y-10=180
4y=180
y=45
Then plug in the y for the top problem and the add the answer to the x problem and set them to 180 because they are also a linear pair and you should get your answer
I got x=34
7 0
3 years ago
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