Answer:
What are we finding for X?
Step-by-step explanation:
Answer:
$80
Step-by-step explanation:
It's khan so you don't need the explanation but for those interested then here:
K=30x+20 - Kayla
S=35x+10 - Sara
60+20=80
70+10=80
So they match up at $80
Answer:
The probability that the card is an ace is 
Step-by-step explanation:
Total number of playing cards = 52
Total number of ace cards = 4
She selects one card at random from the deck.
We are supposed to find the probability that the card is an ace
So, Probability of getting card= 
Probability of getting card= 
Hence the probability that the card is an ace is 
I will say 1. All square roots are irrational.