Answer:
,
Step-by-step explanation:
3x=9. 3 represents the donuts she sold, x represents the cost of each donut and 9 is the total earning
Since there are 60 minutes in an hour, 1/5 of an hour is 60/5=12. U can then multuply 12 and 1/4 which is 3 miles per hour.
His average is 80%. You take the two scores add them up and divide by the number of scores.
Answer:
7 / 13
Step-by-step explanation:
The number of cards in a standard deck = 52
Number of red cards in a deck = 26
Number of queens in a deck = 4
Selecting a card at random ;
Probability of picking a red card ;
P(red card) = number of red cards / number of cards in deck
P(red card) = 26 / 52
P(queens card) = number of queens / number of cards in deck
P(queens card) = 4 / 52
Number of red queen cards = (red n queen) = 2
P(red or queens card) = P(red) + P(queens) - P(red n queen)
P(red or queens card) = 26/52 + 4/52 - 2/52
= (26 + 4 - 2) / 52
= 28 /52
= 7 / 13
