Ask question

Ask question

All categories

3 years ago

7

At each mile marker for the first five miles of a marathon, Ellie was 18 seconds, 9 seconds, 14 seconds, 6 seconds, and 3 second

s ahead of her goal pace. What was her mean time ahead of her goal pace?

1 answer:

mixas84 [53]3 years ago

3 0

The mean is the average.

Let A = mean

A = (18 + 14 + 9 + 6 + 3)/5

A = 50/5

A = 10

Ellie's mean time is 10 seconds.

You might be interested in

㏒ x = 5-x solve the equation

solmaris [256]

Answer:

x = 2.5

Step-by-step explanation:

x = 5 - x

x + x = 5 - x + x

2x = 5

2x/2 = 5/2

x = 2.5

3 0

3 years ago

Write the equation of a line<br> that passes through: (0, 2) and (-1, 1)

Fittoniya [83]

Answer:

y = x + 2

Step-by-step explanation:

slope = Δy / Δx = (1-2) / (-1 - 0) = 1

pass (0,2): y intercept = 2 b=2

y = mx + b

equation: y = x + 2

8 0

3 years ago

the probability of getting an even number (but not 0) is 4/10using a game spinner. the denominator of the probability is

Alex

10 because the ratio is 4/10 and the bottom number is the denominator

4 0

3 years ago

Read 2 more answers

In Chemistry class, Andrew has earned scores of 64, 69, and 73 on three tests. He must maintain an average of 70 to pass the cou

Nikolay [14]

$64+69+73 = 206$

$\frac{206+x}{4} =70$

$206+x=280$

$x=74$

Andrew needs at least a 74% on the final exam.

8 0

4 years ago

I(-2,-2), J(-2,2), K(2,-1)<br> to<br> I'(-0.5,-0.5), J'(-0.5,0.5), K'(0.5,-0.25)

andrew11 [14]

Answer:

J'-0.5,0.5 2/2

Step-by-step explanation:

3 0

4 years ago