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If π equals twenty-one point four, π equals twenty-three point four, and π equals nine, evaluate π plus π plus π all divided by π to the nearest tenth.
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In order to evaluate our expression, π plus π plus π divided by π, we need to take our values for π, π, and π and plug those into our expression.
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We will replace π with the value twenty-one point four.
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Replace π with the value nine.
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And replace both πβs with the value twenty-three point four.
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Now we need to simplify.
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First we need to add all the numbers on our numerator to simplify our numerator.
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The numerator is the top portion of your fraction, so letβs add twenty-one point four plus nine plus twenty-three point four.
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This results in fifty-three point eight.
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Divided by twenty-three point four, which equals two point two nine nine one four five three.
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However, it tells us to round to the nearest tenth.
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The first place value to the right of the decimal is our tenths place.
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So when it says to round to the nearest tenth, our final answer should be ending in a tenths place.
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So we need to decide how to round.
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We must look at the place value to the right of the one that weβre rounding to in order to decide whether to keep our two a two or two rounded up to a three.
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So we look at the hundredths place.
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Thatβs where the nine is.
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Number zero through four would keep the two the same.
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Numbers five through nine would make the two round up to a three.
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So since nine is our- in our hundredth place and weβre rounding to the tenths place, our two will turn into a three.
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So our final answer is two point three.