The first digit of a number can be 1-9. The 2nd and the 3rd digit can be 1-10. The last digit can be 0 or 5 ( 2 numbers ):
9 * 10 * 10 * 2 = 1,800
She could pick 1,800 different 4-digit numbers.
Answer:
Step-by-step explanation:
We can find the area by breaking this into two rectangles one 3 by 7 and the other 1 by 2. The area of any rectangle is xy where x and y are its dimensions
A=3(7)+1(2)
A=21+2
A=23 yd^2
Comparing fractions with different denominators is simply with this simple method!
Cross multiply
99 100
9 10
10 11
100 is bigger than 99.
10/11 is bigger then 9/10
Half of 1/5 is 1/10. one tenth plus one tenth is one fifth
