The product (multiplication) of a number w and 737.
737w
Answer: The running speed of Elena is 5 miles/hour and this can be determined by using the formula of speed.
Step-by-step explanation:
A circular running track 1/4 is a mile long.
Elena runs on this track, completing each lap in 1/20 of an hour.
Speed formula is used to determine the speed of Elena. The formula of speed is given by:
----- (1)
where S is the speed, D is the distance and T is the time taken by Elena to run a circle.
Now, put the value of distance D and time T in the equation (1).
Speed = 5 miles/hour
Therefore, the running speed of Elena is 5 miles/hour.
For more information, refer to the link given below:
brainly.com/question/22610586
B= 10.822
A= 77.5 degrees
C= 77.5 degrees
Answer:
The width is 10 and the length is 14.
Step-by-step explanation:
To draw this conclusion, first use the equation<em> A = lw = 140
.</em>
Remember the length is six less than twice the width, in other words, the length equals 2 time the width minus 6:<em> l = 2w - 6
</em>
Now you want to substitute numbers in:
140 = (2w - 6)(w)
140 = 2w^2 - 6w
2w^2 - 6w -140 = 0
w^2 - 3w - 70 = 0
Factorable by inspection!
(w - 10)(w + 7) = 0
w = 10
<em>w = -7 (nonsense - ignore)
</em>
I = 14
