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yaroslaw [1]
2 years ago
9

Solve the system using the linear combination method: x + 5y= -3 2x + 7y=3

Mathematics
1 answer:
valina [46]2 years ago
7 0

Answer:

3x+12y=0

Step-by-step explanation:

x+2x=3x

5y+7y=12y

-3+3=0

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Clare spent a total of 25 minutes at the track. She spent 5 minutes stretching and walked 4 laps around the track. If she walked
andrezito [222]
Hello!

First of all, we can subtract the stretching time. This gives us 20. If we divide by the four laps we get 5 minutes per lap.

Now, one lap is 400 meters (most tracks are), which is equal to 15,748.03 inches. This means it takes her five minutes to walk 15,748.03 inches. This is also equal to 300 seconds, so it takes her 300 minutes per 15,748.03 inches. 

But if we round our big inches number to the nearest ten thousandth, we get 16,000, so in a simpler form her pace is 300/16,000. But we need to find in per second. Therefore we will divide by 300 to find how many inches she walks per second.  This means she walks about 53.33 inches per second.

I hope this helps!
6 0
3 years ago
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lana [24]
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10y + 12 = 24
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Your final answer will be y=1.2
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3 years ago
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Which letter has rotational symmetry? Answer Choices: 1. B 2. R 3. J 4. I
Whitepunk [10]
The answer is 4. I but it has to be capital
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3 years ago
Find the reference angle for 497°<br> A) 137°<br> B)133°<br> C) 47°<br> D) 43°
Mila [183]
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4 0
3 years ago
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Houa is ordering a taxi from an online taxi service. The taxi charges $3.50 just for the pickup and then an additional $1.25 per
statuscvo [17]

Answer:

<u>Cost for 6 Miles:</u> 7.50$

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