What is the proportion? determine which statement is a true proportion. $1.24/5oz = $1.86/7.5oz

This is not a true proportion.

Step-by-step explanation:

To determine if any proportion is true, we cross multiply. If the results from both sides are equal, then we have a true proportion. We'll start by multiplying the numerator from the first side by the denominator on the second.

1.24*7.5 = 9.375

Now we do it again with the denominator from the first side and the numerator from the second.

5*1.86 = 9.3

Technically, these are not the exact number. Therefore, this is not a proportion.

answer: a video game has three difficulty levels: easy, medium, and expert. the game's scoring works in such a way that a player has to score a fixed number of points to advance to the next level, and then the scoring starts over. the total score needed to clear all three difficulty levels is 7,500. two times the number of points needed to clear the easy level is 500 more than the number of points needed to clear the medium level. twice the number of points needed to clear the medium difficulty level is 1,500 more than the number of points needed to clear the expert level. if x, y, and z represent the easy, medium, and expert levels, respectively, and a is the coefficient matrix of the system of equations modeling this situation, identify the inverse matrix, a-1, and the solution matrix, x, of the system of equations.

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rauschg

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step-by-step explanation:

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