Mathematics, 05.10.2019 15:30 pamelaacuna

The mean of eight numbers is 83. the mean of another four numbers is 14. find the mean of the combined set of numbers.

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Answer from: Quest

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

in this lesson, students will use double number lines and ratio reasoning to solve ratio problems. by partitioning double number lines into proportionate intervals, students will build an understanding of equivalent ratio relationships as those that are generated by multiplying or dividing two related quantities by the same number. this lesson will build upon students' prior understanding of multiplicative comparisons, number line reasoning and equivalent fractions (while highlighting the difference between equivalent fractions and equivalent ratios); and will build toward future work in this unit on building ratio tables, and work in future grades in proportionality, scaling, and expressing and graphing linear functions.

step-by-step explanation:

ratios represent a pattern or relationship that can be scaled.

equivalent ratios are pairs of ratios that represent the same relationship between quantities, and can be generated by multiplying or dividing both quantities in the ratio by the same factor.

Answer from: Quest

the answer is 13

step-by-step explanation:

5*5=25

12*12=144

25+144=169

169^2=13

Answer from: Quest

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20

Answer from: Quest

5,2,1,8 booom the domain is the beginning nunbers

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The mean of eight numbers is 83. the mean of another four numbers is 14. find the mean of the combin...

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