bigg3826
03.12.2019 •
Mathematics
You run 10 miles in 1 hour and 15 mintues keeping the same pance how long would it take to run 15miles
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Ответ:
1 hour and 30 minutes
Step-by-step explanation:
because it took an hour for 10 mile so add another five miles and it would take 30 minutes
Ответ:
it would take you 1 hour and 30 mins
Step-by-step explanation:
it would be that because 1 hour is 60 mins and it takes you 60 mins to run 1 mile add half a mil and then it would be 1 hr 30
Ответ:
Ans: x=0
y= -2
Step-by-step explanation:
-6x+y= -2 (1) × 6
-3x-6y= 12(2) × 1
-36x+6y= -12(3)
-3x-6y= 12(2)
(3)+(2)
-36x+6y+(-3x-6y) = -12+12
⇒ -36x+6y-3x-6y = 0
⇒ -36x-3x = 0
⇒ -39x=0
⇒ x= 0/-39
∴ x = 0
Substitute x = 0 into (1)
-6x+y= -2
⇒-6(0)+y= -2
⇒0+y= -2
∴y = -2
Ans: x = 0
y = -2
Check:
-6x+y= -2 (1)
= -6(0)+(-2)
= 0 - 2
= -2 ✔
-3x-6y= 12(2)
= -3(0)-6(-2)
= 0+12
= 12 ✔