Answer:
The length of a pen.
Step-by-step explanation:
A length of a pen is around three inches and is reasonable but all of the others are way too big and can be measured in feet or miles.
Answer:
c. (1, 3)
Step-by-step explanation:
The coordinates that best suite the equation, given it the answer.
Answer:
OOOOOO <---- the coins in her pocket
Step-by-step explanation:
First you would subtract $52 from it for every day. She had it for 3 days, which means you can multiply 52 by 3 (which equals $156) and subtract it from 202.40. That makes $46.40 left. You then divide the remaining numbers by 0.32, giving you a total of 145 miles driven.
Answer: Xn = n(n+1)/2
Step-by-step explanation:
Firstly, you work with asingle dot for each and let n= 1,2,3,4....
Now if you double the dots, it will form a rectangle and it is easier to work with many dots i.e just multiple n by n+1
Dots in rectangle= n(n+1)
But remember the number of dots were doubled therefore,
Dots in triangle = n(n+1)/2.
