A study compared middle school student backpacks for price, capacity, and whether they had wheels. The data below is a stem and leaf plot of price (in $) for 28 different backpacks along with some summary measures needed for calculations. Use 2 significant decimal places for your answer. Stem Leaf
8 5
8 0 0
7 8
7 0 0 0 1 3
6 5 7
6 0 0 0 0 0 0 0 2
5 5 5 5 6 8
5 0 0 2
4 8

8|5 represents $85

Sum(x) 1770
Sum(x^2) 114520
Q1 55.75
Q3 70.00

If I remove the smallest value from the data, the new median for the backpack data is:

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.

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.

answer: what is the question you're trying to ask?

step-by-step explanation:

a ≈ 172.05

step-by-step explanation:

the pictures.