The answer is 16.55
Divide $99.30 by 6 and you get your answer!
I hope this helps :)
The college student took 13 courses of 3 credit hours.
Step-by-step explanation:
Given,
Total credits = 59
Total courses = 18
Let,
Number of 3 credit hour courses = x
Number of 4 credit hour courses = y
According to given statement;
x+y=18 Eqn 1
3x+4y=59 Eqn 2
We will eliminate y to find the number of 3 credit hour courses, therefore,
Multiplying Eqn 1 by 4

Subtracting Eqn 2 from Eqn 3

The college student took 13 courses of 3 credit hours.
Keywords: linear equation, subtraction
Learn more about linear equations at:
#LearnwithBrainly
To count for the change you can subtract the numbers
the change from 11 to 12: 61.5 - 59.5 is 2
the change from 12 to 13: 65 - 61.5 is 3.5
the change from 13 to 15 69 - 65 is 4
Hope this helps :)
Answer:
X=18.5
Y=37
Step-by-step explanation:
DOB=16° because it's a vertical pair. Because COF is 90°, that means 4x+16 is also 90.
4x+16=90, subtract 16
4x=74, divide by 4
x=18.5
Because EOA is 90°, and you know DOB is 16°, you can set 2y+16 equal to 90 as well.
2y+16=90, subtract 16
2y=74, divide by 2
y=37