9514 1404 393
Answer:
20 people
Step-by-step explanation:
Let n represent the number of people served. If each ate 1/5 of a pizza and there are 4 pizzas, we have ...
(1/5)·n = 4
The solution can be found by multiplying both sides of the equation by 5.
5(1/5)n = 5(4)
n = 20
20 people could be served.
Answer:
theoretical is first then experimental
Step-by-step explanation:
Answer:
2^-3
Step-by-step explanation:
Let's review:
<span><u>Inverse Operations:</u>
</span>Inverse Operations are operations which undo each other!
I'll give the following Inverse Operations in this form.
Operation -> Inverse Operation
Addition -> Subtraction
Subtraction -> Addition
Multiplication -> Division
Division -> Multiplication
That's all of them we'll need to know to solve this problem!
9x + 3 = 3x + 9
First Step!: Move all of the variables to once side (Numbers with x in them). (Prioritize the lower one so we won't need to work with negative numbers) Subtract 3x on both sides (Subtract, because the number is positive)
9x - 3x + 3 = 3x - 3x + 9
3x - 3x = 0
9x - 3x + 3 = 9
Move the 3 to the right by subtracting it on both sides.
9x - 3x + 3 - 3 = 9 - 3
3 - 3 = 0
9 - 3 = 6
9x - 3x = 6
Subtract like terms. (Just like you would subtract 9 - 3). Note that they are only like terms, because they both have the same variables (x) that are the same power (1).
6x = 6
Divide 6 on both sides to get your answer.
6x/6 = 6/6
The 6's cancel out and we are left with 1 on the left AND right, because 6/6 = 1.
x = 1
Plug x in to check.
9(1) + 3 = 3(1) + 9
9 + 3 = 9 + 3
Those are definitely equal!
I hope that helped. If it did then consider giving me the brainliest answer. Thanks.
