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.

Hence,

is cutting each other in this equation.
So,

can be of any value.i.e.,infinite.
Hope this will help you.
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Answer:
6th square -2
8th square -3
9th square -8
Step-by-step explanation: The sum is -12

Total number of rotten mangoes in the bag = 6
Total number of good mangoes in the bag = 24

Fraction of the rotten mangoes to the total mangoes.



Total number of mangoes in the bag = Total number of rotten mangoes + Total number of good mangoes
➺
➺
Now,
Fraction = 
➺
➺
Therefore, the fraction of the rotten mangoes to the total mangoes is
.

Answer:
B. 30
Step-by-step explanation:
Given.:
m<4 = 2x°
m<5 = 4x°
Required:
Value of x
Solution:
<4 and <5 are angles in a straight line, therefore:
m<4 + m<5 = 180°
Substitute
2x + 4x = 180°
6x = 180°
x = 180/60
x = 30