Go math 6th grade module 6 review

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What is a unit rate?

Back

A unit rate is a comparison of two different quantities when they are combined together. It expresses how much of one quantity corresponds to one unit of another quantity.

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How do you calculate the unit rate of a total cost?

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To calculate the unit rate of a total cost, divide the total cost by the number of items. For example, if 15 hamburgers cost $75, the unit rate is $75 ÷ 15 = $5 per hamburger.

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What is the formula to find the unit rate of speed?

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The formula to find the unit rate of speed is: Speed = Distance ÷ Time. For example, if Gabe drives 426 miles in 6 hours, the speed is 426 ÷ 6 = 71 miles per hour.

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How do you compare prices to find the best deal?

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To compare prices, calculate the cost per unit for each option. The option with the lowest cost per unit is the best deal.

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What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. It can be used to find an unknown quantity when two ratios are known.

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How do you use equivalent ratios to solve problems?

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To use equivalent ratios, set up a proportion and cross-multiply to find the unknown value. For example, if 4 out of 5 seeds grow, and you plant 40 seeds, set up the proportion 4/5 = x/40.

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What is the cost of one package if 7 packages cost $28?

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To find the cost of one package, divide the total cost by the number of packages: $28 ÷ 7 = $4 per package.

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What is the meaning of 'per' in unit rates?

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'Per' indicates a division or a rate. For example, 'miles per hour' means the number of miles traveled in one hour.

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How do you find the total cost from a unit price?

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To find the total cost from a unit price, multiply the unit price by the number of items. For example, if one hamburger costs $5 and you buy 15, the total cost is $5 × 15 = $75.

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What is the significance of understanding unit rates in real life?

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Understanding unit rates helps in making informed decisions about purchases, comparing prices, and understanding speed and efficiency in various contexts.