Answer:
1872 in
Step-by-step explanation:
156 ft x 1ft = 156ft cause if you multiply 1 with any number its what ever number you multiplied 1 with.
Answer:
Total number of trees planted =
trees
Step-by-step explanation:
Trees planted by each student = ![2\times 10^2](https://tex.z-dn.net/?f=2%5Ctimes%2010%5E2)
Total number of students = ![3.5\times 10^3](https://tex.z-dn.net/?f=3.5%5Ctimes%2010%5E3)
Using unitary method to find total number of trees planted by all the students in school.
1 student plants =
trees
student would plant = ![(2\times 10^2)\times (3.5\times 10^3)](https://tex.z-dn.net/?f=%282%5Ctimes%2010%5E2%29%5Ctimes%20%283.5%5Ctimes%2010%5E3%29)
We apply the product rule of exponents to multiply ![[a^xa^y=a^{x+y}]](https://tex.z-dn.net/?f=%5Ba%5Exa%5Ey%3Da%5E%7Bx%2By%7D%5D)
⇒ ![(2\times 3.5)\times(10^2\times 10^3)](https://tex.z-dn.net/?f=%282%5Ctimes%203.5%29%5Ctimes%2810%5E2%5Ctimes%2010%5E3%29)
⇒ ![7\times 10^{2+3}](https://tex.z-dn.net/?f=7%5Ctimes%2010%5E%7B2%2B3%7D)
⇒
trees
Total number of trees planted =
trees
Answer:
7 per minute
Step-by-step explanation:
This is because if you divide 630 by 90 it would give you 7, and if you times 7 by 90 it would give you 630,
. For example one minute is 7 miles so 90 minutes is 630 miles. Your welcome.
- 3 1/2 : 1 3/4 =
= -7/2 : 7/4
= -7/2 x 4/7
= -4/2
= -2
Answer:
-6
Step-by-step explanation: