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blondinia [14]
3 years ago
10

Two hikers are walking along the Appalachian Trail. The first hiker is 2 miles ahead of the second hiker. Both hikers are travel

ing in the same direction at the same speed, 1 mile per hour. Let x represent the distance traveled by the first hiker after a certain time period.
Several students wrote equations for this situation. Which student is correct?


A.

Alex said, “The equation y = 2x + 1 represents the total distance traveled by both hikers.”



B.

Brenda said, “The equation y = 3x represents the total distance traveled by both hikers.”



C.

Chris said, “The equation y = x – 2 represents the distance traveled by the second hiker.”



D.

Drake said, “The equation y = x + 2 represents the distance traveled by the second hiker.”
Mathematics
2 answers:
Tatiana [17]3 years ago
6 0

Answer:

Chris is correct. (Choice letter C)

Step-by-step explanation:

We can eliminate choices A and B from the get-go because the problem stated that both hikers are traveling at 1mi/hr. This means that the slope of the equation would equate to 1, so just x.

That leaves us with C and D. The two equations both have a slope of 1, but C has a y-intercept of -2 and D has a y-intercept of 2, which represents the starting location of the second hiker. The first hiker is the one who is ahead by 2 miles, so it can't be D. This leaves us with choice C. Chris is correct.

Luden [163]3 years ago
4 0

Answer:

C. Chris said, “The equation y = x – 2 represents the distance traveled by the second hiker.”

Step-by-step explanation:

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In 1985, the cost of clothing for a certain familiy was $620. In 1995, 10 years later, the cost of clothing for this famility wa
Sholpan [36]

Answer:

$848

Step-by-step explanation:

Calculation for the cost of this familiy's clothing in 1991

First step is to calculate the amount that is increase per year

Increase per year= ($1000-$620)/(1995-1985)

Increase per year= 380/10

Increase per year= $38

Now let y be :38*x + $620 and let x be 6 years (1991-1985)

Second step is to calculate the cost of the clothing in 1991

y = 38*6 + 620

y=228+620

y = $848

Therefore the cost of this familiy's clothing in 1991 will be $848

6 0
3 years ago
|4a|=20<br> PLEASE HELPPPPPPPPPP
fgiga [73]

Answer:

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Step-by-step explanation:

6 0
3 years ago
How many points need to be removed from this graph so it will be a function?​
finlep [7]

Answer:

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Step-by-step explanation:

in a function, an x-value must have only one y-value correlated with it.

So, you would need to remove either (-3, 2) or (-3, 3)

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<em>And, </em>you would need to remove either (1, 4) or (1, -4)

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8 0
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5 0
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Rasek [7]
Michelle: x
Ian: 5x
Joe: 7x
Michelle + Ian + Joe = 208 berries
x + 5x + 7x = 208
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8 0
3 years ago
Read 2 more answers
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