If you would like to solve - 21 + (- 13) + (- 9), you can calculate this using the following steps:
- 21 + (- 13) + (- 9) = - 21 - 13 - 9 = - 43
The correct result would be A. - 43.
Complete question :
Ella finished a bike race in 37.6 minutes. Miranda finished the race 9 1/10minutes sooner than Ella finished it. How many minutes did it take Miranda to finish the race
Answer:
28.5
Step-by-step explanation:
Time taken by Ella = 37.6 minutes
Time taken by Miranda = 9 1/10 minutes sooner than Ella
Hence,
Miranda's finish time :
37. 6 minutes - 9 1/10 minutes
37.6 - 91/10 minutes
37. 6 minutes - 9.1 minutes
= 28.5 minutes
Answer:
x=4
y=3
Step-by-step explanation:
we have the following equations
3x+y=15 equation 1
5x-4y=8 equation 2
using equation 1 we have:
y=15-3x equation 3
using equation 3 in equation 2 we have:
5x-4(15-3x)=8
5x-4*15+4*3x =8
5x-60+12x = 8
17x=68
x=68/17
so we have x=4
finally in equation 3:
y = 15-3(4)
y = 15-12
y = 3
Answer:
2
Step-by-step explanation:
Answer:
3x(3x+5)(x-2)
Step-by-step explanation:

Hope this helps!