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Salsk061 [2.6K]
3 years ago
11

To in-line skater‘s Nell and Kristen start from the same point and skate in the same direction. skate at 12 mph and Kristen skat

e 14 mph if they can keep up that pace for 2.5 hours how far apart will they be at the end of that time?
Mathematics
1 answer:
ANEK [815]3 years ago
4 0

distance (d) = rate (r) x time (t)

Nell: d = 12(2.5)   = 30 miles

Kristen: d = 14(2.5)   = 35 miles

Kristen - Nell = distance apart

    35   -   30

          5

Answer: 5 miles apart

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I really need help!!! <br> if f(x)=x^2+4x-5, find f(-4)
stepan [7]

Answer:

−5

Step-by-step explanation:

By substituting the value of x in f(x) with -4,

(-4)^2+4(-4)-5

=16+(−16)−5

=0−5

=-5

Your welcome :D  

5 0
3 years ago
College administrators noticed that students who had higher high school GPAs tend to have higher college GPAs. The data in the t
riadik2000 [5.3K]

Answer:

Points are at (3.25, 3.2), (3.5, 3.0), (3.5, 2.9), (3.25), (3.0), (2.5, 3.0), (4, 3.0), (4, 3.1), (3.5, 3.1), (3.25, 3.1), (3.5, 3.0), (3.5, 3.0), (4, 3.1), (3, 3.0), (3.5, 3.1), (2.25, 2.9), (2.5, 2.8)

Step-by-step explanation:

Given the data :

Column 1 High School G P A:

3.25, 3.5, 3.5, 3.25, 2.5, 4, 4, 3.5, 3.25, 3.5, 3.5, 4, 3, 3.5, 2.25, 2.5

Column 2 College G P A :

3.2, 3.0, 2.9, 3.0, 3.0, 3.0, 3.1, 3.1, 3.1, 3.0, 3.0, 3.1, 3.0, 3.1, 2.9, 2.8.

To prepare a scatter plot ; with x - axis plotted against y - axis ;

Each point on the x - axis is paired with a corresponding point on the y - axis ;

With high school GPA on the x axis and College GPA on y :

Values are paired in the form:

(X1, Y1),.. (Xn, Yn)

(3.25, 3.2)

4 0
2 years ago
what is the algebraic equation 3 times the sum of a number and 7 is 2 less than five times the number
stealth61 [152]
Let n = number

"3 times the sum of a number and 7" translates to 3(n + 7)

"2 less than five times the number" translates to 5n - 2

The word "is" becomes the equals sign.

3(n + 7) = 5n - 2

I think you already asked this one. 
7 0
3 years ago
57x2.3 what is the anser pls help
Kamila [148]

Answer:

285.00

Step-by-step explanation:

Because you change 57 to a decimal (57.0) then you multiply.

57.0×2.3=285.00

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3 0
3 years ago
Tiffany buys a basket of watermelons on sale for \$9$9dollar sign, 9 before tax. The sales tax is 9\%9%9, percent.
Gnoma [55]

Answer:

<em>Tiffany pays a total price of $9.81 for the basket of watermelons</em>

Step-by-step explanation:

<u>Percentages</u>

To increase a certain amount by a given percentage, we can first calculate the increasing amount and then add it to the original amount.

If the price of the basket of watermelons was $9 before tax, and the sales tax is 9%, we first calculate the tax amount to pay:

$9 * 9 / 100 = $0.81

Now we add it to $9 to get the total price paid by Tiffany:

Total price = $9 + $0.81 = $9.81

Tiffany pays a total price of $9.81 for the basket of watermelons

3 0
3 years ago
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