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IgorC [24]
4 years ago
5

Find all solutions to the system

Mathematics
1 answer:
lara31 [8.8K]4 years ago
8 0

Answer:

x=-3\\y=5\\\\(-3,5)

Step-by-step explanation:

Make both equations equal, as following:

y=y\\x^{2}+12x+32=6x+23

Add like terms:

x^{2}+12x+32-6x-23=0\\x^{2}+6x+9=0

Factor it as following:

(x+3)^{2}=0

Then:

x=-3 (Double root)

Substitute this into the second equation to obtain y:

y=6(-3)+23\\y=5

Then the solution is:

x=-3\\y=5\\\\(-3,5)

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Answer:

The persons saves 25% by buying one set of six ball instead of two sets of three balls.

Step-by-step explanation:

Cost of 1 set of three balls = 40 cents

Cost of 2 sets of three balls = 40 cents × 2 = 80 cents

Cost of 1 set of six balls = 60 cents

Percent dose he save by buying one set of six ball instead of two sets of three balls :

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The persons saves 25% by buying one set of six ball instead of two sets of three balls.

3 0
3 years ago
A 70 cm long stick is cut into two parts in such a way that the longer part is 20 cm longer than the shorter part. How long is e
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Answer:

Long part= 45

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Step-by-step explanation:

Let the short part of the stick be x

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x+x+20= 70

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The short part is 25

5 0
3 years ago
3.<br>Find two rational numbers between<br>and 3/4 and 5/9​
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Answer:

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Step-by-step explanation:

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4 years ago
Read 2 more answers
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68.40 divide 6 = 11.4

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