Answer:
just do 3.9*10000=39000
Step-by-step explanation:
Answer:
2(29D-28adn-29)
Step-by-step explanation:
A camp has 24 kids in total. In the main hall there were 5 boys out of 9 students in total and in the cafeteria there were 12 girl out of 15 kids in total.
Write the ratios in different formats EX: a to b, a:b, and a/b
Answer:
A≈314.16
Step-by-step explanation:
Answer:
1600 integers
Step-by-step explanation:
Since we have a four digit number, there are four digit placements.
For the first digit, since there can either be a 5 or an 8, we have the arrangement as ²P₁ = 2 ways.
For the second digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.
For the third digit, since it neither be a 5 or an 8, we have two less digit from the total of ten digits which is 10 - 2 = 8. So, the number of ways of arranging that is ⁸P₁ = 8.
For the last digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.
So, the number of integers that can be formed are 2 × 10 × 8 × 10 = 20 × 80 = 1600 integers
