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Lelechka [254]
3 years ago
11

(find unit rate) Julio runs 18.6 miles in 3 hours

Mathematics
1 answer:
Romashka-Z-Leto [24]3 years ago
6 0

You do 18.6 ÷ 3 and that equals 6.2

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Look at the graph shown below:
ElenaW [278]
So.. take a peek at the picture... let's get two points from it, hmm say 0,4 notice it touches the y-axis there, and say hmmm -4, 1, almost at the bottom of the line

\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%   (a,b)
&({{ 0}}\quad ,&{{ 4}})\quad 
%   (c,d)
&({{ -4}}\quad ,&{{ 1}})
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{1-4}{-4-0}

\bf y-{{ y_1}}={{ m}}(x-{{ x_1}})\qquad 
\begin{array}{llll}
\textit{plug in the values for }
\begin{cases}
y_1=4\\
x_1=0\\
m=\boxed{?}
\end{cases}\\
\textit{and solve for "y"}
\end{array}\\
\left. \qquad   \right. \uparrow\\
\textit{point-slope form}

once you get the slope and solve for "y", that'd be the equation of the line.
7 0
3 years ago
a computer store builds custom computers by allowing customers to choose 1 of 4 different CPU's. 1 of 8 hard drives, and 1 of 3
Lelechka [254]
You multiply the possibilities.

4*8*3 = 96 possibilities.
3 0
3 years ago
Read 2 more answers
EQUATION 10y=80. yes or no. ​
Darya [45]

Answer:

Step-by-step explanation:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                                           10*y-(80)=0

 Pull out like factors :

                                10y - 80  =   10 • (y - 8)

           Solve :    10   =  0

This equation has no solution.

A a non-zero constant never equals zero.

  Solve  :    y-8 = 0  

Add  8  to both sides of the equation :  

                     y = 8

8 0
3 years ago
Read 2 more answers
Of 125 students in 5th grade, 3/5 of them have a mobile phone. How many students do not have a mobile phone?
Annette [7]

Answer:75

Step-by-step explanation:125÷ 5=25

25*3=75

5 0
4 years ago
Read 2 more answers
Donna Preski works 8 hours a day, 5 days a week. So far this year she
CaHeK987 [17]

Answer:

She worked 17 weeks

Step-by-step explanation:

5 days = 1 week

8 hours = 1 day

8 x 5 = 40 hours per week

680 hours ÷ 40 hours per week = 17 weeks

5 0
3 years ago
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