3 (4x + 6) = 21
4x + 6 = 21/3
4x + 6 = 7
4x = 7 - 6
4x = 1
x = 1/4
Slope between two points =
(Change in y) / (change in x) .
For these points, that's -7/5 .
Using it's concept, the probability that a card is a factor of 54 is given by:
P(Factor of 54) = 1.
<h3>What is a probability?</h3>
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem, we have that there are 3 total outcomes, which are the cards 1, 2 and 3.
The factors of 54 are given as follows:
{1, 2, 3, 6, 9, 18, 27, 54}.
All the three cards are factors of 54, hence the probability that a card is a factor of 54 is given by:
P(Factor of 54) = 1.
More can be learned about probabilities at brainly.com/question/14398287
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Ok so we know that in ONE second, the dam releases 40000 gallons of water. In ONE minute, there are 60 seconds. Therefore...
1 second----------------40000 gallons
60 seconds--------------? ( this is what we're trying to find.
To get from 1 to 60, we multiplied by 60. Now we do it on the other side. 40000 times 60 is 2,400,000, so the rate in gallons per minute is 2,400,000 gallons per minute
let 2x+5y=12......... equation I
also,4x+3y=-4........ equation ii
now, multiply equation i by 2
we get,2(2x+5y=12)
or,4x+10y=24
now subtract i from ii
4x+10y=24
-4x+3y=-4
so,the answer be 7y=28
or,y=4
now putting the value of y in equation I we get,
4x+10y=24
or,4x+10.4=24
or, 4x=24-40
or, 4x=16
or,x=4
therefore, the value of x and y are 4and 4
