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Alenkinab [10]
3 years ago
9

Car 1 is going 75mph and is 7 miles ahead of car 2 which is going 85mph. How long until car 2 passes car 1?

Mathematics
1 answer:
olga55 [171]3 years ago
7 0

Answer:

use  the  Dist = rate * time , formula.. I call it the dirt formula ( Di = rt )

Step-by-step explanation:

since the cars are closing their distance at 10 MPH.. this is question wants to know  how long before the cars pass when they are 7 miles apart... this would be the same for a car going 10 MPH and needs to get to a location 7 miles away.  sooo..

how long does it take to travel 7 miles at 10 MPH?

it takes 7/10 of an hour.. correct :)

.7 * 60 = 42 minutes

in 42 minutes car 2 will pass car 1  

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47 cm²

Step-by-step explanation:

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Simplify the square root of 27x^12/300x^8
Darina [25.2K]
The first thing we are going to do is rewrite the expression correctly.
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 Rewriting:
 root ((27/300) * (x ^ 12 / x ^ 8))
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 root ((9/100) * (x ^ (4)))
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Numa turma, 5% dos homens e 2% das mulheres tem mais de 1,60m de altura. Por outro lado, 60% dos estudantes são homens. Se um es
Zinaida [17]

Answer:

0.8%

Step-by-step explanation:

Because they are two independent events, the final probability is the product of the probability of each event.

First event:

The complement of a student being male is that he is female.

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Second event:

If she's taller than 5'4", we're told she has a 2% chance of being a woman.

Therefore the final probability is:

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That is, the probability that it is female and that it is over 1.6 meters tall is 0.8%.

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3 years ago
19) At a local river, there were 48 alligators lying on the riverbank. If of the alligators wereasleep, how many were not asleep
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3 0
3 years ago
Iv)<br>6x+3y=6xy<br>2x + 4y= 5xy​
Margaret [11]

Answer:

Ok, we have a system of equations:

6*x + 3*y = 6*x*y

2*x + 4*y = 5*x*y

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(6*x + 3*y)/(2*x + 4*y) = 6/5

now we isolate one off the variables:

6*x + 3*y = (6/5)*(2*x + 4*y) =  (12/5)*x + (24/5)*y

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Now we can replace it in the first equation:

6*x + 3*y = 6*x*y

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y = 0

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2*x + 4*2 = 5*x*2

2*x + 8 = 10*x

8 = (10 - 2)*x = 8x

x = 1.

(1, 2) is other solution

8 0
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