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Fittoniya [83]
3 years ago
8

Lin ran 29 meters in 10 seconds. she ran at a constant speed. At this rate, how far can she run in 1 minute

Mathematics
2 answers:
yaroslaw [1]3 years ago
5 0
174 meters in 1 minute.

If we take 29m and divide it by 10s, we get a value of 2.9. To find how much she can run in 1 minute, just take 60(secs) and multiply by 2.9.
scoundrel [369]3 years ago
3 0

Answer:

2.9 per second

Step-by-step explanation:

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Can someone please explain how to do these?
Pani-rosa [81]

Answer:

<u>First question answer:</u> The limit is 69

<u>Second question answer:</u> The limit is 5


Step-by-step explanation:

For the first limit, plug in x=8 in the expression (9x-3), that's the answer for linear equations and limits.

So we have:

9x-3\\9(8)-3\\72-3\\69

The answer is 69


For the second limit, if we do same thing as the first, we will get division by 0. Also indeterminate form, 0 divided by 0. Thus we would think that the limit does not exist. But if we do some algebra, we can easily simplify it and thus plug in the value x=1 into the simplified expression to get the correct answer. Shown below:

\frac{x^2+8x-9}{x^2-1}\\\frac{(x+9)(x-1)}{(x-1)(x+1)}\\\frac{x+9}{x+1}

<em>Now putting 1 in x gives us the limit:</em>

\frac{x+9}{x+1}\\\frac{1+9}{1+1}=\frac{10}{2}=5

So the answer is 5

3 0
3 years ago
A company sells widgets. The amount of profit, y, made by the company, is related to the selling price of each widget, x, by the
Alika [10]
Your answer is 5173.
6 0
2 years ago
7x+16=8x+15 solve for x and y
elena55 [62]

Answer:

x = 1

Step-by-step explanation:

7x + 16 = 8x + 15

<u>Step 1</u> : Subtract 15 on both sides

7x + 16 - 15 = 8x

7x + 1 = 8x

<u>Step 2</u> : Subtract 7x on both sides

1 = 8x - 7x

1 = 1x

x = 1

8 0
2 years ago
An ion has a charge of +7. How far is it from being neutral?
jeka57 [31]

We are given that

An ion has a charge of +7

and a neutral has charge always 0

so, change is charge = ion charge - neutral change

so, we can plug values

change is charge = +7 -0

change is charge = 7

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3 years ago
If square root of 5 - x = 4 , then x=
Arada [10]
I'm guessing here, but I may be right. The answer is x=0
If I'm wrong please correct me!!
8 0
3 years ago
Read 2 more answers
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