Multiply 5/7 by 2 to get 10/14.
I calculated that he bought 6 pens and 19 pencils
Answer:
This is GP with the first term of 512 and common ratio of 1/2
<u>The formula for nth term is:</u>
<u>The number of teams after the 4th round:</u>
- a₄ = 512*(1/2)⁴ = 32 teams
<u>Number of rounds to determine the champion:</u>
- 1 = 512*(1/2)ⁿ
- 2⁰ = 2⁹*2⁻ⁿ
- 0 = 9 - n
- n = 9 rounds
<em><u>It's 30</u></em>
<em>Hope that helped!</em>
Answer:
Sara bought 5 6 penny nails and 3 10 penny nails
Step-by-step explanation: