Answer:
John answered 50 questions.
Step-by-step explanation:
Although five of John's answers were incorrect, 90% of his answers were correct.
This means that 5 is 100 - 90% = 10% of the total number of questions, n. So



John answered 50 questions.
Answer:
yes
Step-by-step explanation:
Each day Donna and Mary toss a coin to see who buys the other person coffee ($2.34 a cup). One tosses and the other calls the outcome. If the person who calls the outcome is correct, the other buys the coffee; otherwise the caller pays. Assume that an honest coin is used, that Mary tosses the coin, and that Donna calls the outcome.
Answer:
It's D (a = 20 because the rate of change is –3.)
Step-by-step explanation:
I did the test and that was the correct answer
Answer: A) 30 cards
<u>Step-by-step explanation:</u>
1. 52 cards
2. subtract red suit cards: 52 - 26 = 26
3. add back the hearts: 26 + 13 = 39
4. remove the 3 remaining jacks, 3 remaining queens, & 3 remaining kings: 39 - 9 = 30
There are 30 cards remaining
It would be a > 12, move all terms to one side and then solve for x. make sure if you divide then you flip the term