Answer:
2n+5 =3
n=-1
The number is -1
Step-by-step explanation:
Let n be the number
Twice the number
2n
Plus 5
2n+5
is means equals
2n+5 =3
Now we want to solve
Subtract 5 from each side
2n+5-5 = 3-5
2n = -2
Divide each side by 2
2n/2 = -2/2
n = -1
3 and a half hours i assume. so, 60 times 3 is 180, then divide by 2 to get your half, which is 30 now add that to 180. You have 210. She will travel 210 miles in 3 and a half hours. :)
Answer:
4. 6.6
1. 9043
2. 0.52
Step-by-step explanation:
3+2.24+1.36=6.6
10000-957
1.3-0.78
Answer:
all work is shown and pictured
