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bagirrra123 [75]
3 years ago
11

:Find x+y, if: 2x+3y=8 and 3x+5y=13

Mathematics
1 answer:
sertanlavr [38]3 years ago
3 0

Answer:

x=1

y=3

Step-by-step explanation:

Heres a photo with explanation

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Take a look at these lines graphed below.

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\bf \textit{and now let's \underline{rationalize} the denominator for each}&#10;\\\\\\&#10;-\cfrac{3}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies -\cfrac{3\sqrt{13}}{13} \qquad \qquad \qquad \qquad  \cfrac{2}{\sqrt{13}}\cdot \cfrac{\sqrt{13}}{\sqrt{13}}\implies \cfrac{2\sqrt{13}}{13}&#10;\\\\\\&#10;\textit{and written in \underline{ai+bj form}}\qquad -\cfrac{3\sqrt{13}}{13}i~~~~+~~~~\cfrac{2\sqrt{13}}{13}j
7 0
3 years ago
Which equation could be used to solve the problem? Larry skated 7200 feet in 3 minutes. How many feet per minute did he skate (x
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A. 7200 feet ÷ 3 minutes = x

Hope it helps!

And happy Pi Day! :D


7 0
3 years ago
4 loads of stone weigh 2/3 ton. Find the weight of 1 load of stone.
Zina [86]
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4 0
3 years ago
If an object is projected upward into the air from ground level, then the height h(t) of the object
AfilCa [17]

Answer:

21.5secs

Step-by-step explanation:

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Hence it takes 21.5secs for the object to hit the ground

5 0
3 years ago
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