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Crazy boy [7]
3 years ago
6

A cross- country runner runs 10 km in 40 minutes. what is his average speed

Mathematics
2 answers:
KonstantinChe [14]3 years ago
7 0
The answer is 400 because you multiply it
dlinn [17]3 years ago
6 0
All you have to do is to find the unit rate at which this person runs.

It is 

10 km
--------- = 1/4 km/min, or   1 km
40 min                              --------- , or 0.25 km/min
                                          4 min
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Solve this linear equation using substitution. (Please show work!)
Genrish500 [490]

Answer:

y=1-7x

Step-by-step explanation:

7x+y=1

The first thing to do is get the y by its self. So u cancel the 7x out by-7x and bring it to the other side.

7x-7x = 0

Now all we have left is: y=1-7x

Hope it helps and is right.

5 0
2 years ago
Read 2 more answers
PART A Joan can pick up 9 pounds of strawberries in 1 hour. How long does she take to pick up 72 pounds of strawberries?
evablogger [386]
Part A: It will take her 8 hours to pick 72 pounds of strawberries (9/72=8)
Part B: $192. (8*2=16*12=192)
5 0
3 years ago
What function is shown in the graph above?
Verizon [17]

By definition of <em>linear</em> functions and the comparison with the attached figure, the function that represents the graph is y = (7/15) · x + 4, - 6 ≤ x ≤ 9.

<h3>What kind of function represents the graph?</h3>

Graphically speaking, <em>linear</em> functions represent lines and we see that the line seen in the figure presents two bounds, the points (- 6, 0) and (9, 7). <em>Linear</em> functions are characterized by slope and intercept:

y = m · x + b     (1)

Slope

m = (7 - 0)/[9 - (- 6)]

m = 7/15

Intercept

b = 4

By definition of <em>linear</em> functions and the comparison with the attached figure, the function that represents the graph is y = (7/15) · x + 4, - 6 ≤ x ≤ 9.

To learn more on linear functions: brainly.com/question/14695009

#SPJ1

8 0
2 years ago
I need help I don’t understand
kozerog [31]
You answer for a. show be 200+600-1 should e lil tj
8 0
3 years ago
What does the y mean in y=mx+c
zubka84 [21]
<span>y=mx+c
General equation

m is the slope
c is the intercept

So, when x axis is zero, the value in y axis will be equal to c.


</span>
6 0
3 years ago
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