Kimberly ran an amusement park with large animals. She charged $20 for horse rides and $50 for elephant rides. Fifty-five rides were offered and $2000 was collected. How many rides of each type were offered?

step-by-step explanation:

it will be a cylinder. with a diameter of 8 and 4 single pieces high

the arc length is found by finding the circumference of the full circle (2xpixradius) and then dividing by 4 to find just one quarter of the circle (90 degrees).

current in the circuit at time t is /, then the power delivered to the resistor is

step-by-step explanation:

proportions are fractions that equal to each other. so if two fractions are the same, they are proportional.

let's check the answers to see if they are proportional.

question a is not proportional because you can't turn 1.5/3 to 3/9. if you try to multiply 1.5/3 by 2 or 3, you wont get 3/9. it's impossible to make the fractions the same.

question b is not proportional because you can't turn 22/33 to 4/6. 33 can't go into 6.

question c is proportional because when you multiply 2 and 3 by 71, you would get 142/213, and those fractions equal to each other

question d is proportional because when you divide 14 and 7 by 2, you would end up with 7/3.5, and those fractions equal to each other.