Answer:
The anwser is B.) 49
Step-by-step explanation:
If you subtract 79 (the amount of 7th graders riding the bus) from 128 (the total number of 7th graders) you will get 49. Therefore 49 is the answer.
Hope this helps!!
Answer:
D) 3x^2 - 12
Step-by-step explanation:
Using PEMDAS;
There is no need to evaluate the part of the equation (x^2 - 8) because is no need to, as it is already in its simplest form.
We must evaluate the part of the equation continuing with, "- (-2x^2+4)," as it is not in its simplest form.
Evaluating "- (-2x^2+4)":
Step 1: Distributing the negative
Once distributing the negative symbol amongst the values within the parenthesis according to PEMDAS, we get "2x^2 - 4" as the product.
Step 2: Consider the rest of the equation to evaluate
Since the part of the equation is still in play here as it is a part of the original equation to be solved, we must evaluate it as a whole to get the final answer.
Thus,
x^2 -8 + 2x^2 - 4 = ___
*we can remove the parenthesis as it has no purpose, since it makes no difference.
Evaluating for the answer, we get,
x^2+2x^2 + (-8 - 4) = 3x^2 - 12
Hence, the answer is D) 3x^2 - 12.
This is your perfect answer
Since Cesar is riding his bike at a constant rate of six miles per hour, and he biked 9 hours you have to multiply 9 by 6.
Answer:
1 DVD costs 15 cents.
I million DVDs cost 150,000 dollars.
Step-by-step explanation:
If 20 DVDs ------ $3
then, 1 DVD----------- x
20x = 3
x = 3/20
x = 0.15
1 DVD costs 15 cents
i already did this problem in one of my quizzes
