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kotykmax [81]
3 years ago
9

Elimination 4x+5y=-15 -3x-2y=13

Mathematics
1 answer:
AveGali [126]3 years ago
4 0
Multiply the first equation by 3 and tge second by 4:
12x+15y=-45
-12x-8y=52
then add the equations:
0x+7y=7
7y=7
y=1
so 4x+5(1)=-15
4x+5=-15
4x=-20
x=-5
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Answer:

QR = 12 (cm), RP = 10 (cm)

Step-by-step explanation:

Corresponding sides of the triangles:

XY : PQ, YZ : QR, ZX : RP.

For similar triangles ratios of corresponding sides are the same

XY : PQ = 4 : 8 = 1 : 2

YZ : QR = 1 : 2

ZX : RP = 1 : 2

YZ : QR = 1 : 2

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ZX : RP = 1 : 2

5 : RP = 1 : 2, RP = 10 (cm)

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Okay i need some help fast
Troyanec [42]

Answer:

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Step-by-step explanation:

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I can tell that these types of boxes have height and width as the same lengths, so given that;

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