Answer: 21.8
Step-by-step explanation:
3.2 + 3.2= 6.4
Why did I do this?
Because it says how many blocks does he walk to school and back.
Answer:
Try and find it yourself
Explanation:
Set up a ratio: 200/1 = x/4.5 (x = actual distance in miles)
4.5 * 200 = x (multiply both sides by 4.5)
x = 900 miles. And that makes logical sense if you look at it: for every 200 miles you have 1" on the map. So for 4.5" you now have 900 miles. You can also have other ratios, such as x/200 = 4.5/1
Answer:
6.58 x 10 ^ -2
Step-by-step explanation:
that's 10 to the negative 2 power.
it creates a smaller number. moving decimal to left 2 places.
.0658 meters
Answer:
in 5 years
Step-by-step explanation:
If Lee is 19 and Amira is 16 years younger, Amira is:
19-16 = 3 years old
So, we need to find how much time in years will pass until Lee's age is three times Amira's. Lets call x the number of years until this happens. So, in x years from now Lee will have 19+x years old, and Amira will be 3+x years old. And this ages must be such that Lees age is 3 tamis Amira's. Thus:
19+x = 3(3+x)
19 + x = 9 + 3x
Subtract 9 in both sides:
19-9 + x = 9 -9 + 3x
10 +x = 3x
Subtract x in both sides:
10 + x -x = 3x -x
10 = 2x
Divide both sides by 2
10/2 = 2x/2
5 = x
So, in 5 years Lee will have three times the age of Amira. Lets verify.
Lee will hace 19+5=24 years old
Amira will have 3+5=8 years old
24/8 = 3
So, its verified!
