Answer:
A
Step-by-step explanation:
let x= pizza y= soda
kay:
x+y=4
Mark:
6x+2y=18
From kay's equation
x= 4-y
substiute that into mark's
6(4-y)+2y=18
24-6y+2y=18
-4y= -6
y= 1.5
Plug in y= 1.5 in either equation to solve for x
x+1.5=4
x=2.5
So a pizza is 2.5 and a soda is 1.5
the answer must be A
-25
Tell me if you need an explanation
Answer:
<h2>z = 18</h2>
Step-by-step explanation:

Answer:
8820 ways
Step-by-step explanation:
Given that :
Selecting 4 pairs of pant from 8 available and selecting 5 shirts from 9 available
Using combination :
4 pants from 8 = 8C4
5 shirts from 9 = 9C5
Recall:
nCr = n! / (n-r)! r!
8C4 * 9C5 = [8! /(8-4)!4!] * [9! /(9-5)!5!]
8C4 * 9C5 = (8! /4!4!) * (9! /4!5!)
8C4 * 9C5 = 70 * 126
8C4 * 9C5 = 8820 ways
The first one is 43/72 which can’t be simplified
The second one is 17/18