Answer:
Step-by-step explanation:
Given that there are 15 people and they should be divided into two groups one with 10 and the other with 5 people.
First group 10 persons can be selected from 15 in 15C10 ways.
Remaining 5 would automatically be put in group 2.
Hence no of ways
Iowa has to be greater sales tax because it's $2.70 for Iowa and $2.45 for Tennessee
If the area of the square is equal to 256 centimetres squared, then each side of the square would be sqrt(256) = 16.
Therefore, given that a square has four sides of equal length, the perimeter of the square would be 16 x 4 = 64 centimetres.
Answer:
$799.92
Step-by-step explanation:
To find his pay, multiply the number of hours he worked by his pay per hour:
22.22(36)
= 799.92
So, his pay was $799.92
Think of the letter 'a' to represent 1 apple.
a = 1a = 1 apple
2a = 2 apples
3a = 3 apples
and so on
Adding 7a with 4a means we have 7 apples and we add on 4 more. We'll have 7+4 = 11 apples total.
Algebraically we write 7a+4a = 11a to do this using shorthand.
The 9-7 portion is calculated like you'd expect and it simplifies to 2.
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Here's what the step by step picture looks like
(7a+9) + (4a-7)
7a + 9 + 4a - 7
(7a+4a) + (9-7)
11a + 2