Let x be the time she ran and y be the time she walked
then distance ran = 25x and distance walked = 5y
so 15x + 5y = 42
and x + y = 4
* second equn. by -5:-
-5x - 5y = -20
add this to the first equn:0
10x = 22
x = 2.2
distance she ran = 2.2 * 15 = 33 km
Answer:3
Step-by-step explanation:x/4=18/24 24 is 6 times greater than 4, so you divide 18 by 6 to get 3. Therefore, 3/4=18/24.
Answer:
x=-2
Step-by-step explanation:
first, you substitute y=0, then you solve the equation for x
y=x+2
0=x+2
x=-2
Answer:
Y=x^2-2x-8
Step-by-step explanation:
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I'm not completely sure, but I think the area would be <span>375 inches.
I hope this answer helped you! If you have any further questions or concerns, feel free to ask! :)
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