Given:
must correctly answer 80% of the questions
correctly answered questions = 26
incorrectly answered questions = 4
unanswered questions = 15
Total questions = 26 + 4 + 15 = 45
45 * 80% = 36 required correctly answered questions.
36 - 26 = 10
Out of 15 remaining questions, 10 questions must be correctly answered for Heidi to advance to the next level.
These numbers are "a" and "b".
Sum is 64, so
a+b=64
Difference is 42 so
a-b=42
So you've got:
When a+b=64 and a=53 you've got:
53+b=64
b=11
So these numbers is 53 and 11.
Answer:
59049+0
59048.1+0.9
59048.01+0.99
...
Step-by-step explanation:
There's infinite.
Distance1 ÷ (Jaime's velocity + wind velocity) =
Distance2 ÷ (<span>Jaime's velocity - wind velocity)</span>
57 / (Jaime's velocity + 4) = 33 / (<span>Jaime's velocity -4)
</span>
57 / 33 = (Jaime's velocity + 4) / (Jaime's velocity - 4)
(57 * -4) +57 * (Jaime's velocity) = (33 * 4) +33 * (Jaime's velocity)
-228 + 57 JV = 132 + 33 JV
24 JV = 360
Jaime's velocity = 15
Source
http://www.1728.org/veloccal.htm
(see Problem E)
