Mathematics, 31.03.2020 00:26 Braxton12

One yard crew works four times faster than the other yard crew. If they work together they can finish a job in 60 minutes. How fast each yard crew works?

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Answer from: Capicus8710

Time taken by both crew is 48 min and 12 min , when they work together !

Step-by-step explanation:

Here we have , One yard crew works four times faster than the other yard crew. If they work together they can finish a job in 60 minutes. We need to find How fast each yard crew works . Let's find out:

One yard crew works four times faster than the other yard crew

Let speed of one crew be x , So speed of other crew is four times i.e.

⇒

If they work together they can finish a job in 60 minutes.

According to above statement , both can finish work in 60 min i.e.

⇒ 4x+x=60

⇒ 5x=60

⇒ x=12

So , time taken by other crew is 4x = 4(12) = 48 min . Therefore , Time taken by both crew is 48 min and 12 min , when they work together !

Answer from: jadadugas4418

The second yard crew works for 48 minutes.

The first yard crew works for 12 minutes which is four times faster that the second crew.

Step-by-step explanation:

Let us assume,

The second yard crew completes the work in 'x' minutes.

It is given that,

The first yard crew works four times faster than the other yard crew. Therefore, first yard crew will complete the work in 'x/4' minutes.

If they work together they can finish a job in 60 minutes.

⇒ x + x/4 = 60 minutes.

⇒ 5x / 4 = 60

⇒ x = 240/5

⇒ x = 48 minutes.

Therefore, the second yard crew works for 48 minutes.

To find the first yard crew :

We already know that, they are 4 times faster that the second yard crew.

Substitute x = 48 in x/4,

⇒ 48 ÷ by 4

⇒ 12 minutes.

Therefore, the first yard crew works for 12 minutes which is four times faster that the second crew.

Answer from: Quest

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,

0 = ( 2 - 4 ) ( p + q )0 = ( 2 - 4 ) ( 2 + 5 i ), by multiplying these0 = ( 4 + 10 i - 8 - 20 i )0 = 4 - 8 + 10 i - 20 i0 = - 4 -10 i 0 = 2 ( - 2 - 5 i )0 / 2 = - 2 - 5 i- 2 - 5 i = 0- 5 i = 2i = 2 / - 5

Answer from: Quest

$7.50x+$4.50y=midk it's been awhile since i've done one of these

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