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AURORKA [14]
3 years ago
14

In a parallelogram if AB = 3x + 2y and AB = 30 what is the value of x and y

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0
We can put the two equations together with substitution, and we get

3x + 2y = 30

Now we have a single equation in two variables, so we don't have enough information to solve for both x and y.
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An aquifer holds 146,000 cubic feet of water. Water exits through a well at a steady rate of 500 cubic feet per day, and the aqu
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Answer:

The value of x = 100  ft^3/ day

Step-by-step explanation:

We need to look at what amount of water comes in and what amount of water leaves

What comes in:  x ft^3/ day

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We start with 146 000 ft^3

Water in tank = what we start with + what comes in - what leaves

water in tank = 146000 + x*d - 500*d  where d is the number of days

After 365 days , the tank has 0 ft^3 of water

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Multiply

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36500 = 365x

Divide by 365

36500/365 = 365x/365

100=x

The value of x = 100


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