3 years ago

Determine whether the following is a statistical question. How many days are in June?

Mathematics

1 answer:

wolverine [178]3 years ago

5 0

Answer:

30 It is a statistical question

Step-by-step explanation:

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CORRECT ONES: A and C

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Equal amounts are invested at 2%, 7%, and 9% annual interest. If the three investments yield a total of $792 annual interest, fi

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Answer:

$\large \boxed{\$13 200}$

Step-by-step explanation:

The formula for simple interest I is

I = Prt, where

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In this problem, the interest rate is annual, so n = 1.

We must write the interest rate as a decimal fraction.

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$\begin{array}{rcl}0.18x & = & 792\\x & = & \dfrac{792}{0.18}\\& = & 4400\\\end{array}\\\text{Each investment was \$4400.}\\\text{The total investment was 3$\times \$4400$ or $\large \boxed{\mathbf{\$13 200}}$}$

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3 years ago

What is X? <br> 3.2x-16 = 4x

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3.2x-16 = 4x

4x - 3.2 x = - 16

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x = -20

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3 years ago

Read 2 more answers