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Marrrta [24]
3 years ago
8

John can clear a lot in 1.5 hours. His partner can do the same job in 4.5 hours. How long will it take them to clear the lot wor

king together?
Mathematics
1 answer:
Arisa [49]3 years ago
8 0

Answer:

1.125 h = 1h 7.5 min = 1 h 7 min 30 sec

Step-by-step explanation:

John makes 1/1.5 work per h.

His partner makes 1/4.5 work per h.

Together they make (1/1.5 + 1/4.5) = (3/4.5 + 1/4.5) = 4/4.5 work per h.

They will work

1 : 4/4.5 = 4.5/4 = 1.125 h = 1 h + 0.125 h = 1h + 0.125h*60min/1h =

=1h 7.5 min = 1 h 7 min 30 sec

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Anvisha [2.4K]

Answer:

P(rolling five distinct values) = 1/3888

Step-by-step explanation:

We are told that I the fair sided dice, 6 is replaced with 5.

Thus,the numbers are now;

1,2,3,4,5,5.

This means a total of 6 possible numbers appearing.

Now, in these 6 numbers there are only 5 distinct numbers since 5 occurs twice.

P(1) = 1/6

P(2) = 1/6

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8 0
3 years ago
Pls help me with this
DedPeter [7]

Answer:

the volume of the cone would be approximately 490.09 m^3.

Step-by-step explanation:

The volume of a cone is pir^2h/3

So it would be pi*6^2*13/3

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=pi*156

=490.09

Therefore, the volume of the cone would be approximately 490.09 m^3.

I hope this helped and have a good rest of your day!

7 0
2 years ago
1) What percentage of 48 is 62?
dybincka [34]

Answer:

77.42

Step-by-step explanation:

48/62=77.42

3 0
3 years ago
What value does the 2 in the number 0.826?
Deffense [45]

Answer:

.02

Step-by-step explanation:

2 is in "Hundredths' place in .826

So, the number is multiplied with 1/100 or .01

=> 2 x 1/100

=> 2/100

=> .02

=> 2 x .01

=> .02

The value of 2 in .826 is .02

6 0
3 years ago
I think I wrote question wrong, it’s what is the biggest even number I can make using all four numbers 4,6,3,1 I don’t think it’
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Answer:

4 digits even number - 6314

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3 years ago
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