Answer:
bottom 2 shapes
Step-by-step explanation:
Answer:
Step-by-step explanation:
If the radius of a circle is doubled, the area of the circle will be quadrupled and the circumference will also be doubled. This makes sense because the area of a circle is directly proportional to the square of the radius of the circle (if the radius of a circle is increased x times, its area will be increased to x^2 times the original area), whereas the circumference is proportional to the size of the radius (if the radius of a circle is increased x times, its circumference will increase x times).
Answer:
Step-by-step explanation:
x = first number, y = second number
x + y = 80
y = 2x + 5
x + 2x + 5 = 80
3x + 5 = 80
3x = 80 - 5
3x = 75
x = 75/3
x = 25
y = 2x + 5
y = 2(25) + 5
y = 50 + 5
y = 55
so ur numbers are : 25 and 55 <==