Answer:
48 more minutes
Step-by-step explanation:
85 - 37 = 48
Answer:
90 quizzes
Step-by-step explanation:
In 7 weeks, 63 quizzes
In 10 weeks, x quizzes
Making a proportion,
7/10 = 63/x
Cross multiplying,
7x = 630
Dividing by 7 on both sides,
x = 90 quizzes
I think it is y=-.25
7*3 - 4y = 20
21 - 4y = 20
subtract 21 from each side
- 4y = - 1
divide each side by - 4
y= -.25