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aleksklad [387]
3 years ago
9

Solve the system of equations below algebraically 2x+3y=6 and -5x+2y=4

Mathematics
1 answer:
Charra [1.4K]3 years ago
7 0


Steps
I’m using elimination so I’m trying to get rid of y
To do that I multiply the first equation by 2 and the second by -3. Then solve
4x + 6x = 12
15x + -6x = -12
—————————
19x + 0 = 0
Divid by 19 to get x to one side. 0/19 is 0 so
X= 0
Plug that into an equation so 0 + 3y = 6
Divid by 3 and y = 2
Answer x = 0 y = 2
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Animal y=5.4x+34<br> person y=12x+8.5 y is weight x is years. when is the weight the same
I am Lyosha [343]

Answer:

Step-by-step explanation:

Animal                 Person

y = 5.4x + 34       y = 12x + 8.5; where y - weight, x - years

looking for when weight (y) is the same, so we need

animal weight (y) = person weight (y)

            5.4x + 34 = 12x + 8.5

        <u>   -5.4x           -5.4x</u>

                      34 = 6.6x + 8.5

                  <u>  -8.5             -8.5</u>

                   25.5  = 6.6x     divide both sides by 6.6

                         x = 3.86  years

not sure if you need your answer in decimal or what, but you can adjust accordingly.

4 0
4 years ago
URGENT!! IS THIS CORRECT????? DEADLINE DUE.
ioda
YESSSS IT ISSSS CORRECTTT!!!!❤️❤️
3 0
4 years ago
Read 2 more answers
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rosijanka [135]

Answer:

it's 9.947

Step-by-step explanation:

for this we need an equation which contain height in it so we used volume in both so we get height

π2^2h=5*5*5

π4h=125

h=9.947

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3 years ago
Please help me please
ycow [4]

Answer:

Its a i just took the test

Step-by-step explanation:

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4 years ago
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Answer:

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20+16a

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