Answer:
4 students
Step-by-step explanation:
As shown in the diagram, let U=[The total number of students questioned]
A=[Those who liked peanut butter ]
B=[Those who liked jam ]
x = those who like both peanut butter and jam.
Also 6 liked neither peanut butter nor jam.
From the diagram we can write the mathematical equation as follow and solve for x
We add x and subtract 30 to both sides.
Therefore 4 students like both peanut butter and jam.
Answer:
The dependent variable is A
The independent variable is w
Step-by-step explanation:
Given
Required
Identify the variables
In
The value of w is independent of the value of A.
In other words:
A derive its own value from w; by multiplying 25 and w.
Take for instance:
The value of A would be:
Hence:
The dependent variable is A
The independent variable is w
Answer: 80 feet.
Step-by-step explanation:
You can calculate the width using two equations and solving for the side lengths.
You can then substitute the L in the first equation for the L in the second equation:
Now, you can factor this equation to solve it:
Your solutions for W are -100 and 80. Considering the width of a rectangle cannot be negative, the only possible solution is 80 feet, which makes your length 100 feet.