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Katarina [22]
3 years ago
15

What is the solution of the following system?

Mathematics
1 answer:
yuradex [85]3 years ago
4 0

Given system:

-2x-y=1 ....................(1)

-4x-2y=-1 ..................(2)

2*(1) -(2)

-4x-2y +4x+2y = 2-(-1)

0=3   => there is no solution because the two lines (equations) are parallel and distinct (never meet), so no solution.

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Are assocative properties true for all intergers? explain​
Fudgin [204]

No, Associative proporties are not true for all integers. The deffinition for integer (n) 1. one of the positive or negative numbers 1, 2, 3, act., or zero. Compare whole number

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4 years ago
Please help with this question (with explanation) thanks!​
skad [1K]
The reaction times form a straight line with gradient of 60/140 = 3/7 m/kph
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7 0
2 years ago
Aleena has a 1-gallon watering can that is full of water.She uses 3/8gallon to water her roses and 1/3gallon to water her gerani
beks73 [17]

Answer:

The answer to your question is 17/24 gallon

Step-by-step explanation:

Data

total volume = 1 gallon

She uses 3/8 gallon and 1/3 gallon

Process

1.- To find the answer, just sum up the water she used to water her roses and the volume she used to water her geraniums.

            3/8 + 1/3 =

- Look for the Least common factor

   8 x 3 = 24           LCF = 24

- Solve the fraction

           3/8 + 1/3 = (9 + 8) / 24

                          = 17/24

2.- Conclusion

     She used 17/24 gallon to water her flowers.

8 0
4 years ago
Read 2 more answers
How do I solve w, squared, minus 81.
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4 0
3 years ago
If the sum of N25,300 is shared among three students P, Q, R such
Verizon [17]

Answer:

Step-by-step explanation:

We begin with the fact that P + Q + R = 25300. Now we need to state all of those variables in terms of just one, since we can't have more than one unknown in an equation.

If Q is half as much as P, then

Q = 1/2 P

If R has twice as much as Q, then

R = 2Q, but since Q = 1/2P then

R = 2(1/2P) which is just P. So

R = P and the equation then becomes

P + 1/2P + P = 25300 and

\frac{5}{2}P=25300\\(\frac{2}{5})\frac{5}{2}P=25300(\frac{2}{5})\\P=10120

R also is 10120.

Since Q is half of that,

Q = 5060

7 0
3 years ago
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