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Semenov [28]
3 years ago
10

Andy is scuba diving. He starts at sea level and then descends 10 feet in 2 1/2 minutes. Represent Andy's descent in feet per mi

nute.
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
6 0

Answer:

4 ft/min

Step-by-step explanation:

I'm sorry no one has helped you in 40 minutes, so let me.

Theres a fun trick when it comes to saying something 'per' something;

as you can look at the word per as a fancy word for divide.

So if I have Xylophones per Megaphone then I'm basically saying:

Xylophones divided by megaphones

So in this case its 10 feet per 2 1/2 minutes and we'd understand it as 10/2.5

Lets show this

10 ft per 2 1/2 minutes = 10/2.5 ft/min = 4 ft/min

Hope this helps :)

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An equilateral triangle has a perimeter of 51x + 3. What is the length of each side of the triangle?
Blababa [14]

First subtract 3 from 51 which gives you 48, then divide 48 by 3 which gives you the answer of 16.

3 0
4 years ago
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50 points!
DENIUS [597]

<u>Answer:</u>


The right graph is the first one (figure attached).

Note that in a Speed vs Time graph, the constant speed is represented by a line with slope=0 <u>(for example, segment 1)</u>, when the speed increases the slope is positive <u>(for example, segment 2)</u> and when the speed decreases the slope is negative <u>(for example, segment 4).</u>

Now, if we want to prove this, let’s read again the problem, <u>dividing each section of the path Marc drove to his work</u> (see figure attached):

1. He slowly pulls out of his driveway at a <u>constant speed </u>

2. and then his <u>speed increases</u> steadily

3. until he reaches the speed limit. He uses cruise control to drive the speed limit  <u>(he drives at constant speed)</u>

4. until he comes upon some traffic (usually if you find some traffic you have to <u>derease your spped</u>)

5. He then slows down to a new <u>constant speed</u>.

6. When he gets near his office, his <u>speed steadily decreases</u> until he comes to a stop right in front of his office building  <u>(at this point the speed is zero)</u>



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3 years ago
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Felix has $11 and begins saving $5 each week toward buying a new phone. Eddy has $60 and begins spending $2 per week on supplies
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Felix starts off with 11, so that's our constant.

Each week he saves $5 which is our slope.

Equation for Felix:

Y=5x+11


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Equation for Eddy:

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7 0
3 years ago
For each value of y, determine whether it is a solution to -4+5y&lt;_-39
Vlad [161]

Answer:

-7 and -10 are solutions, 5 and 0 aren't

Step-by-step explanation:

For the inequality, -4 + 5y will have to be less than or equal to -39. So, y would have to be a negative number. That would remove 5 as a possible solution.

Next, we can calculate the solution for others. For 0, we can multiply it by 5 and get 0. Then, add it to -4 which would get us -4. This is greater than -39 so 0 isn't a solution.

If we solve for -7, we'll get: -4 + 5(-7) -> -4 - 35 -> -39. This is equal to -39 so it is a solution. If we solve for -10, we get: -4 + 5(-10) -> -4 - 50 -> -54. This is less than -39 so it is a solution.

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3 years ago
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