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Earn +20 ptsQ: 2 9 add 3
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What is the answer if you add 2 over 9 to 2 over 3?
2/9 + 2/3 = 2/9 + 6/9 = 8/9
What prime numbers add up to 9?
2 and 7 2+7=9 3,3, and 3 3+3+3=9 1,2,3, and 3 1+2+3+3= 9
How do you turn a mix number in to a fraction?
Multiply the integer part with the denominator and add that to the numerator. For example: 3 2/3=? ↓↓ ↓↓ 3 * 3=9 ↓↓ 2 + 9=11 3 2/3=11/3 Or, if you like it cleaner: 3 2/3=? (3*3+2)/3=(9+2)/3=11/3
What 3 numbers that add to 9?
12
What two numbers multiply and add up to 9?
a+b = ab = 9 so a(9-a) = 9 = -(a-9/2)^2 +81/4 so a-9/2 = sqrt(45/4) = +- 3/2 sqrt(5) Therefore the two numbers are (9 + 3 sqrt(5))/2 and (9 - 3 sqrt(5))/2
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