Answer:
12 correct answers
Step-by-step explanation:
Since in the main part she scores 8.3 points for each question she answers correctly, we can assume that the number of questions she answers correctly=a
Therefor, the total number of points she achieved in the math test in the main part alone can be expressed as:
Total score(main part)=8.3×a=8.3a points
She also solved a bonus question worth=11 points
Consider expression 1 below
The total score in the whole test=Total score in the main part+Bonus points, where;
Total score in the whole test=110.6 points
Total score in the main part=8.3a points
Bonus points=11 points
Substituting the values in expression 1:
8.3a+11=110.6
8.3a=110.6-11
8.3a/8.3=99.6/8.3
a=12
Number of correct answers in the main part=a=12
Answer:
2
Step-by-step explanation:
16x-6=26
16x=32
x=2
Answer:
(-x² + 99x +200)/x
Step-by-step explanation:
Profit per watch = (200 - x)/x
Profit per band = 100 – x
New profit = (200 - x)/x + 100 – x
New profit = (200 - x)/x + x(100 – x)/x
New profit = (200 - x + 100x – x²)/x
New profit = (-x² + 99x +200)/x
