You obviously have two circles here, the fountain which is also the inside of the circular walk and the other circle is the outside of the circular walk. Now using your formula for the area of a circle figure out the size of the big circle and subtract the area of the small circle (the … Read more
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The area of a triangle is calculated with the formula ½bh, which is one-half base × height. You should plot these three points, you will notice you have a right triangle. Then figure out the length of your base and the length of your height and you can then use the area formula for a … Read more
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First you will want to convert 3 6/10 (a mixed fraction) into a compound fraction by taking the 3, multiplying by the denominator - 10 - to get 30. Now add the 6 to that, so you have 36/10 this is also 36.0/10.0   Now move the decimal point in both the numerator and the denominator one … Read more
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Divide 7 by 15 and that will give you a decimal. Then to convert to a % move your decimal point two positions to the right. Your answer should be a little less than 50% because 7 out of 14 is 50%.
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What you want to do here since you have to unknowns (the price of the hot dog and the price of a drink), is create 2 equations. For example for John 6h + 4d = 6.70. Then create an equation for Jessica also. Then with one of the equations get one variable all alone on … Read more
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As you know an equilateral triangle have three sides of all equal lengths, that being