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faust18 [17]
4 years ago
10

a hockey puck travels at a constant speed of 20m/s. what is the speed in mi/h? round to the nearest hundredth.

Mathematics
1 answer:
Mandarinka [93]4 years ago
6 0
60 Seconds=1 Minute
60 Minutes=3600 Seconds
1 Meter=0.000621371 Miles
20*3600=72000 meters
72000/0.000621371= 44.738726 Mi/H
Boom!
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Write the equation of the line that passes through (2, 3) and is parallel to the line 12x – 5y = 2.
zheka24 [161]
The first thing I'd do is put this equation into standard slope - intercept form. 

12x - 5y = 2               Subtract 12x from each side
-5y = -12x + 2            Divide each side by -5 to isolate the <em>y 
</em><em />y = 12/5(x) - 2/5    
     
 The slope for this equation is 12/5, so we just take that and plug it into the slope - intercept equation with the given points (2, 3)

y = mx + b                    Fill in the variables
3 = 12/5(2) + b             Simplify
3 = 24/5 + b                 Subtract 24/5 (or 4 4/5) from each side
-9/5 = b

Now we just fill in the correct variables (m and b) in the equation to have our final answer. 

y = 12/5x - 9/5
4 0
3 years ago
(x - 4) - (x + 7) = 8x
Vedmedyk [2.9K]

Answer:x = -11/8 = -1.375

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Find E in DEF<br> D=5, E=3x+14
vova2212 [387]

Answer:

well, I think it is B 7°

as X =7

because 5x=3x+14

so 5x7= 35

3x7=21 + 14=35

6 0
3 years ago
Mrs. simms told her class to find two consecutive even integers such that twice the lesser of two integers is 4 less than two ti
monitta
X = lesser 
x+2 = next even integer; the greater integer 

twice the lesser of the two intergers is 2•x 
the word is means equal 
4 less than 2 times the greater integer 

EQUATION: 2x = 2(x+2)-4 
2x = 2x+4-4 
2x = 2x 
x = 0 ANSWER 
<span>x=2 = 0+2 = 2 ANSWER.

The equation has one solution because any two conseculive number can give you and answer that always 4 less than two times the greater interger.</span>
7 0
3 years ago
Find x when y=5 if y varies inversely as x and x=6 when y =-18
Vera_Pavlovna [14]
It has been given that y varies inversely with x, therefore the equation for this relationship is as follows;
y =\frac{k}{x}\
when y = -18 and x = 6
-18 = k/ 6 ---1)
We need to find x when y = 5
 5 = k/x
when we divide 1)/2), k gets cancelled 

\frac{-18}{5}=  \frac{x}{6}
x = -18*6/5
x = -21.6
when y = 5, then x = -21.6
7 0
3 years ago
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