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3 years ago

Find the value of y, given that m_ KLM = 137º.

Mathematics

2 answers:

mr Goodwill [35]3 years ago

7 0

Answer:

y≈ 5.63

Step-by-step explanation:

m<KLM=137

137= 47+16y

137= 47 +16y Subtract 47 on both sides.

90=16y Divide 16 on both sides.

5.625=y Round

5.63≈ y

Musya8 [376]3 years ago

6 0

Answer:

y ≈ 5.63

Step-by-step explanation:

m∠KLN and m∠NLM have to add up to m∠KLM

m∠KLN = 47°

m∠NLM = 16y°

m∠KLM = 137°

47 + 16y = 137

16y = 90

y = 45/8

y = 5.625

y ≈ 5.63

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Read 2 more answers

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rusak2 [61]

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4=1 times 4
2 times 2
they don't add to 2
set up equation
x+y=2
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first equation, subtract x from both sides
y=2-x
subsitute for y
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distribute
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use quadratic formula which is
if you have ax^2+bx+c=0 then
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1x^2-2x+4=0
a=1
b=-2
c=4
x= $\frac{ -(-2)+/-\sqrt{(-2)^{2}-4(1)(4)} }{2(1)}$
x= $\frac{ 2+/-\sqrt{4-16} }{2}$
x= $\frac{ 2+/-\sqrt{-12} }{2}$
we have $\sqrt{-12}$ and that doesn't give a real solution
therefor there are no real solutions
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x= $\frac{ 2+/-2\sqrt{-3} }{2}$
i= $\sqrt{-1}$
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6 0

3 years ago

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Daniel [21]

Answer:

Ok:

Step-by-step explanation:

I see that you set up 90 miles = 60 mph * t, where you found out that t = 1.5. What what you needed to do was set 180 miles = 45 mph * t. This is because it is 45 mph for the <em>whole</em> trip. Then, you find that t = 4 hours. That that means that he spent 2.5 hours driving back. Then, we can do d=vt and find 90/2.5 as the speed he went home at. Which comes out to be 36 mph.

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3 years ago