Ask question

Ask question

All categories

WINSTONCH [101]

3 years ago

15

A runner is running a 10 km race. it takes her 17.5 minutes to reach the 2.5 km mark. at that rate, how long will it take her to

eun the whole race? (explain your answer plz)

1 answer:

cluponka [151]3 years ago

5 0

First find the unit rate. Do 17.5/2.5 and you get 7. Next just multiply that by 10 and voila. It takes her 70 minutes to run the whole race.

You might be interested in

Determime the intercepts of the line that passes through the following points. (-6,5);(-3,3);(0,1)

butalik [34]

well for a line, to get its slope all we need is two points, so let's use (-6, 5) and (0, 1), and get the equation of it.

$\bf (\stackrel{x_1}{-6}~,~\stackrel{y_1}{5})\qquad
(\stackrel{x_2}{0}~,~\stackrel{y_2}{1})
\\\\\\
slope = m\implies \cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{1-5}{0-(-6)}\implies \cfrac{1-5}{0+6}\implies -\cfrac{5}{6}$

$\bf \begin{array}{|c|ll}
\cline{1-1}
\textit{point-slope form}\\
\cline{1-1}
\\
y-y_1=m(x-x_1)
\\\\
\cline{1-1}
\end{array}\implies y-5=-\cfrac{5}{6}[x-(-6)]\implies y-5=-\cfrac{5}{6}(x+6)
\\\\[-0.35em]
\rule{34em}{0.25pt}\\\\
\textit{to get the x-intercept, we set y = 0, solve for \underline{x}}
\\\\\\
0-5=-\cfrac{5}{6}(x+6)\implies -30=5x+30\implies -60=5x
\\\\\\
\cfrac{-60}{5}=x\implies -12=x~\hfill \boxed{\stackrel{x-intercept}{(-12,0)}}$

now, where's the y-intercept of that line? well, to get the y-intercept, we set x = 0 and solve for "y"....hmmmm wait a second, notice (0, 1), x = 0, y = 1, that's the y-intercept already.

7 0

3 years ago

What is the sum of 14.34 + 9.7?<br><br> 1.531<br> 15.31<br> 24.04<br> 2.404

oee [108]

Answer:

C also known as 24.04

Step-by-step explanation:

14.34+9.7

=14.34+9.7

=24.04

-lavira :)

5 0

3 years ago

Read 2 more answers

Newton's second law in physics states that F=ma, where F is the force of an object (measured in Newtons), m is the mass of the o

JulijaS [17]

Answer:

mass=640/1000kg

=0.64kg

acceleration =10m/s^2

now,

force=mass*acceleration

=0.64*10

=6.4newton

5 0

3 years ago

In rhombus WXYZ, if WX=15, find YZ.

aliya0001 [1]

Answer:

YZ=15

Step-by-step explanation:

All sides of a rhombus are equal so it would be the same length.

5 0

3 years ago

Can you simplfy 53 lower

katrin [286]

Not Rationally, No. But You Can Make It Into 26.5

8 0

3 years ago

Read 2 more answers