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Luba_88 [7]
3 years ago
11

Need help can someone help me with this question

Mathematics
1 answer:
REY [17]3 years ago
7 0

In system A, the first equation multiply by 4

8x - 4y = 12 (1st)

3x + 4y = 10 (2nd)

--------------------add

11x = 22

So answer is B.



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Pls help.................
Crank
The correct answer is u multiple it by 5 then u move it directions
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2 years ago
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What is 2/4 × 1 4/10
Aleks [24]
2/4= 10/20
1 4/10=14/10  14/10=28/20

10/20×28/20=7/10

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3 years ago
40 points and brainliest get it before it gets claimed.
denis23 [38]

Answer:

yuh

Step-by-step explanation:

4 0
3 years ago
A vegetable store sold 3 tons of vegetables less on the first day than on the second, and on the third day it sold 5/9 of the am
Ilya [14]
Let
x---------> <span>quantity (ton) of vegetables sold the first day
</span>y---------> quantity (ton)  of vegetables sold the second day
z---------> quantity (ton) of vegetables sold the third day

we know that
x=y-3---------> equation 1
z=(5/9)*(x+y)------> equation 2
x+y+z=98-----> equation 3
substitute equation 2 in equation 3
x+y+[(5/9)*(x+y)]=98----> multiply by 9----> 9x+9y+5x+5y=882
14x+14y=882-----> equation 4

to resolve the equations system formed by
x=y-3
14x+14y=882

using a graph tool
see the attached figure
the solution is
x=30
y=33
x+y+z=98----> z=98-(x+y)----> z=98-63---> 35

the answer is
vegetables sold the first day----> 30 ton
vegetables sold the second day----> 33 ton
vegetables sold the third day------> 35 ton

8 0
3 years ago
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Use the quadratic formula to find the solutions to the quadratic equation
777dan777 [17]

Answer:

It will have complex and different roots.

Step-by-step explanation:

The solution is attached in the image below:

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