Abag contains 90 marbles some red and some transparent the ratio of red marbles to transparent ones is 1: 4. how many red marbles are there? andwer

horizontal translation of 2 units in the positive x direction

followed by

vertical translation of 3 units in the positive y direction

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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