Answer:
Step-by-step explanation:
. First multiply 7*-6=-42.
Then do 16*13=208.
Simplify by dividing both by 2.
You get .
Your final simplified answer is
I hope this helps!
BONUS QUESTION: The mean of four numbers is 25. Three of the four numbers are 20, 26, and 26. What is the fourth number?
2 answers:
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Answer:
The cost of the old ball was $100.
Step-by-step explanation:
The cost of the new ball = $300
The new ball has three times the price of his old ball.
So, let the price of the old ball be = x
As per situation, we get the equation:
Dividing both sides by 3:
=> x = 100
Hence, the cost of the old ball was $100.