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sattari [20]
3 years ago
10

It costs $120 for 20 students to visit an aquarium. How much does it cost for 152 students? Set up a proportion to solve.​

Mathematics
1 answer:
nordsb [41]3 years ago
5 0

Answer:

152 times 6=912

Step-by-step explanation:

$120 for every 20 students

it cost $6 for every 1 student

$6 times 152=912

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Step-by-step explanation:

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X + 2y = 5<br> x - 3y = 7 <br> What is the value of the y-determinant? <br> -2<br> -1 <br> 2
grandymaker [24]

Answer:

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Step-by-step explanation:

Given the following system of equation:

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Let's represent it using a matrix:

\left[\begin{array}{ccc}1&2\\1&-3\end{array}\right] = \left[\begin{array}{ccc}5\\7\end{array}\right]

The y‐numerator determinant is formed by taking the constant terms from the system and placing them in the y‐coefficient positions and retaining the x‐coefficients. Then:

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__

2) use the numerators when the denominators are the same

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6 0
3 years ago
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