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Black_prince [1.1K]

3 years ago

14

A group of 45 students went trip to the zoo. Each student paid $11.50 admission to the zoo. How much in all did the student pay

for admission to the zoo

2 answers:

katrin2010 [14]3 years ago

5 0

Answer:

517.50$

Step-by-step explanation:

11.50x45=517.50

Stolb23 [73]3 years ago

3 0

Answer:

$517.50

Step-by-step explanation:

take 45 and multiply it by 11.50 to get ur answer of $517.50

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We have a rectangle with length L that is 3 inches more than the width W. Then we can write this as:

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We have a quadratic equation. The roots of this equation will be the mathematical solutions.

We can find the roots using the quadratic formula:

$\begin{gathered} W=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ W=\frac{-3\pm\sqrt[]{3^2-4\cdot1\cdot(-180)}}{2\cdot1} \\ W=\frac{-3\pm\sqrt[]{9+720}}{2} \\ W=\frac{-3\pm\sqrt[]{729}}{2} \\ W=\frac{-3\pm27}{2} \\ W_1=\frac{-3-27}{2}=-\frac{30}{2}=-15 \\ W_2=\frac{-3+27}{2}=\frac{24}{2}=12 \end{gathered}$

The solutions are W = -15 and W = 12.

The first one is not valid, as W has to be greater than 0.

Then, the solution to our problem is W = 12 in.

Answer: the width is W = 12 inches.

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Answer:

Step-by-step explanation:

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