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geniusboy [140]
3 years ago
13

What is the solution to this system of equations 3x+y=17 and x+2y=49

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
7 0

Answer:x=-3 y=26

Step-by-step explanation:

3x+y=17.............(1)

x+2y=49..............(11)

From (11) x=49-2y

Substitute x=49-2y in 3x+y=17

3(49-2y) + y=17

Open bracket

147-6y+y=17

147-5y=17

Collect like terms

5y=147-17

5y=130

Divide both sides by 5

5y/5=130/5

y=26

Substitute y=26 in x+2y=49

x+2(26)=49

x+52=49

Collect like terms

x=49-52

x=-3

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x(t) = 20t

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Since we are only interested in comparing the two at time t = 5 seconds, we plug in 5 everywhere we see the variable t and then compare x and y

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The ratio of y to x can be expressed as: y/x, so we can say the ratio is equal to 75/100 or 0.75

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3 years ago
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Answer:

0.1228

Step-by-step explanation:

We use sine rule

\dfrac{a}{\sin A} = \dfrac{b}{\sin B} = \dfrac{c}{\sin C}

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