Length = 2×width -3
or
L = 2w - 3
perimeter = 24 meters
or
p = 24m
p = 2L + 2w
or
24 = 2(2w-3) + 2w ( Remember L = 2w +3)
24 = 4w -6 +2w
24 = 6w + 6
24 - 6 = 6w
18 = 6w
18/6 = w
3 = w
Now that we know ,w, we can find L.
p = 2L + 2w
24 = 2L +2(3)
24 = 2L + 6
24 -6 = 2L
18 = 2L
18/2 = L
9 = L
Now, we can check if the answer makes sense.
p = 2L + 2w
24 = 2(9) + 2(3) (L = 9 & w =3 )
24 = 18 + 6
24 = 24
the answer checks!
3.45 rounded to the nearest tenth is 3.5.
1.23 rounded to the nearest tenth is 1.2.
0.85 rounded to the nearest tenth is 0.9.
To find how much further Molly walked than her brother and sister combined, you'd have to combine the amount of miles Molly's brother and sister walked:
1.2 + 0.9 = 2.1
Next, you would have to subtract Molly's amount of miles walked with the combination of her brother and sister's miles walked:
3.5 - 2.1 = 1.4
So, Molly walked 1.4 more miles on her hike than her brother and sister had walked combined.
Answer:
<em>18 hours after 10 AM</em>
Step-by-step explanation:
- We are looking for the time the helicopter and the plane will be the same distance from Burbank after 10 AM.
- We are given the two equations for the distance that the helicopter and the plane are away, in miles.
- It also says that R is the variable for time.
- Using this information, we need to solve for the time with broth equations, so we would set both up to be equal to each other, since they will be the same distance away from each other.
- It would look like this: -150r + 260 = -270r + 440.
- Add 150r to both sides.
- 260 = -10r + 440.
- Add -10r to both sides.
- Now we have 10r + 260 = 440
- Subtract 260 from both sides.
- 10r = 180
- Divide each side by 10 to isolate the R.
- R = 18.
- It would be 18 hours after 10 AM.
If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
Answer:
Wakaranai
Step-by-step explanation:
Answer:
10 seconds
Step-by-step explanation:
mark two points on the line the use the slope rule to calculate it you'll find it's -5 m/s
