Writing and Evaluating Expressions with Formulas and Variables

Interactive Video
•
Mathematics
•
6th - 7th Grade
•
Hard
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result when you substitute 5 for x in the expression 3 + x?
3
5
8
15
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If each side of a square is 2 times x, what is the perimeter when x equals 3?
30
24
18
12
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you calculate speed if you travel 155 miles in t hours?
Divide 155 by t
Subtract t from 155
Multiply 155 by t
Add 155 to t
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the area of a square with a side length of 2 times x when x equals 2?
12
16
20
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If t equals 2 hours, what is the speed in miles per hour when traveling 155 miles?
76.5
75.5
77.5
74.5
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