The answer is 140.
If there are 140 hamburgers sold, and there were 2x as many cheeseburgers sold, that adds up to 420.
140 x 2 = 280 (Cheeseburgers)
So there were 280 cheeseburgers sold.
280 (Cheeseburgers) + 140 (Hamburgers) = 420 altogether.
Hope this helps!
If a car is going 70 mph it will only take 1 hour to get 70 miles
Answer:
All you have to do is insert the first value where the x is, and the second value where the y is.
y = 3x + 5
11 = 3(2) + 5
11 = 6 + 5
11 = 11
So, this is right.
Now, let's check (3,13)
y = 3x + 5
13 = 3(3) + 5
13 = 9 + 5
13 = 14
This is NOT true. So, your answer is: Only (2,11)
Hope this helps!
Answer:
4π
Step-by-step explanation:
We are asked to calculate the area of a circle whose diameter is equal to 4, we know that the area of the circle is given by the following equation:
A = π * (r ^ 2)
where r is the radius of the circle, we know that the radius of the circle is half the diameter, therefore:
r = d / 2 = 4/2
r = 2
replacing, we are left with:
A = π * (2 ^ 2)
A = 4π
Which means that the area of the circle is 4π
