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sineoko [7]
3 years ago
14

What is the solution for the system of equations?

Mathematics
1 answer:
taurus [48]3 years ago
7 0
Rearrange the first equation2x + y = 20take away 2x from both sidesy = 20 - 2x substitute this y value into the second equation6x - 5(20 - 2x) = 126x -100 +10x = 12add 100 to both sides6x + 10x = 11216x = 112divide both sides by 16 x = 7Substitute this x value into the first equation to get y.2(7) + y = 2014 + y = 20take away 14 from both sidesy = 6
So, y = 6 and x = 7
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The distance between Alison's school and home is 12.5 miles. If 5 miles is 8 kilometers, how many kilometers is her school
raketka [301]

Answer:

20km

jus split it up into parts\

5+5+2.5=12.5

8+8+4=20

8 0
3 years ago
Read 2 more answers
I NEED HELP WITH THIS ASAP!
horrorfan [7]
I think it’s the 1st one because it’s close too what it is when I work it out






7 0
3 years ago
What’s 8, 10, 12??????
Helen [10]

Answer:

8. If Janice is registered to vote, then she is over 18 years old.

10. If Giovanni's sandwich was made at Super Subs, then it is a deli roll.

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5 0
4 years ago
Suppose a triangle has two sides of length 3 and 4 and that the angle between these two sides is 60°. What is the length of the
lesantik [10]
We can use law of cosines to find the length of the third side.

Law of cosines is:

c^2 = a^2 + b^2 - 2ab*cos(C), where angle C is opposite of side c.

Plug in what we know.

c^2 = 3^2 + 4^2 - 2(3)(4)cos(60)

Simplify:

c^2 = 9 + 16 - 24cos(60)

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Solve for c by taking the square root of both sides:

c = sqrt(25 - 24cos(60))

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c = sqrt(13)

c = 3.606





8 0
3 years ago
\large{\dfrac{2.64\times 10^{-3}}{8.0\times 10^{0}}} =\ ?
valentinak56 [21]

Answer:the answer is option a. it involves organizing events in the order in which they occurred.

Step-by-step explanation:

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