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katen-ka-za [31]
3 years ago
5

Y-4x=3. 2x-3y=21 can someone help

Mathematics
1 answer:
mars1129 [50]3 years ago
3 0

Y-4X =3 ; 2x-3y=21

Y= 3+ 4x

2x -3( 3+4x)= 21

2x- 9- 12x= 21

-10x -9= 21

-10x -9+9= 21+9

-10x = 30

X= 30/-10= -3

Y= 3+4x = 3+ 4* (-3)= 3-12= -9

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notsponge [240]

Answer:

8inches

Step-by-step explanation:

Length of the third side = perimeter - ( side1 + side2 )

                                       = 17 - (5+4)

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7 0
3 years ago
Your housing and fixed expenses are $702.38/month. What is your realized income for the month if your expenses account 30%
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We are asked to solve for the monthly income given that 30% of it goes to your expenses.
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The total income is $2,341.27.
8 0
3 years ago
Read 2 more answers
How much is 3 divided by 1/6
meriva

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18

Step-by-step explanation:

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8 0
3 years ago
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The first thing any good mathematician does is convert the measurements to the same unit as what the question is asking. In this problem, it states that the pool fills at a rate of 20 cubic meters per hour. Just keep in mind that an hour is 60 minutes.

The next step is to see how many cubic meters will cost $300. This can be done by dividing 300 by 10. This gets you 30 cubic meters of water.

You already know that 60 minutes is 20 cubic meters of water. That leaves the remaining 10 cubic meters of water. By dividing the rate given, you get that 30 minutes is 10 cubic meters of water. Add the 60 and 30 together to get 90 minutes.

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