SOLUTION: I need help with 6 questions.
1.Evaluate 5∙2^2÷2+8
2.Evaluate (6^4÷3^2)/12
3.What is the value of the expression when c=-1 and d=16 3c^2+d/2
4.What is the value of t
Algebra.Com
Question 1049136: I need help with 6 questions.
1.Evaluate 5∙2^2÷2+8
2.Evaluate (6^4÷3^2)/12
3.What is the value of the expression when c=-1 and d=16 3c^2+d/2
4.What is the value of the expression when x=5 and y=-2 (5x+2y)/(x-2)
5.Miss Griggs ran at a rate of 3 mph for 2.5 hours. If d=rt, where d is distance, r is rate, and t is time, find how far Miss Griggs ran. Show all your work.
6.Is n=7 a solution to the equation 6=2n-8? Show your work to prove your answer.
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!
#3
Just substitute the given values and evaluate the expression.
#2 and #1
PEMDAS Order of operations
Look inside parentheses first. Do the exponentiations:
Actually, I would make use of the indicated rational stuff there and simplify first.
-----------result for #2.
#1
Multiplications from left to right:
Divisions from left to right, only one of them:
ADDITIONS from left to right:
--
WHAT ABOUT #4, #5, #6?
#4
Substitute the GIVEN values for x and y. EVALUATE the expression. Not much different than #3; same idea, similar method.
#5
You have the formula. Substitute the values and evaluate. The units will give no complications.
#6
Is true or false?
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