Let, Number of multiple choice = x
Number of short answer question = y
Now, x + y = 20
& 3x + 11y = 100
Multiply 1st equation by 3, and subtract from eq,2,
3x + 3y = 60
After subtraction,
8y = 40
y = 40/8
y = 5
Now, substitute in eq (1),
x + 5 = 20
x = 15
In short, There are 15 Multiple choice & 5 short answer questions
Hope this helps!
Answer:
-8/3
Step-by-step explanation:
You could use the equation
+4+(-4)=0 if:
-you earn $4 and spend it
-buying 4 candy bars then eating them
-earning 4 points then losing them
Answer: Great more than happy to help!
Exponents come 2nd in line for PEMDAS (order of operations).
Once you finish the parenthesis, you move on to the exponents.
Step-by-step explanation:
