Answer:
.75
Step-by-step explanation:
75%
because it will give 100
x² - 80 = 0
Add 80
to each side: x² = 80
Square root
each side: x = √80
Look it up: x = + 8.944... (rounded)
and
x = - 8.944... (rounded).
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Here's a cleaner solution:
x² - 80 = 0
Add 80
to each side: x² = 80
Square root
each side: x = √80
But 80 = 16 · 5
So √80 = √16 · √5
√16 = 4, so x = 4 √5
The number would be 18.
Half of 18 = 9
Two thirds of 18 = 12
9 + 12 = 21
72 I believe because you have to subtract the 33 from the number of total games & then divide by two because you already took out the 33 more loses than wins.
