The diameter of a circle is 16 inches. What is the circle’s area?

Use 3.14 for pi

200.96

Step-by-step explanation:

We know that the area of a circle is

But we are given the diameter. Diameter is two times radius, so:

We now know that 8 is our radius. Then, we will use the formula to solve.

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x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x