Suppose that among a group of sports enthusiasts, 50 reported they enjoyed watching synchronized boxing, 40 reported enjoying extreme knitting. further, when queried again, 20 of these reported that they enjoyed watching both activities.

How many sports enthusiasts enjoy watching synchronized boxing or extreme knitting?

70 sports enthusiasts enjoy watching synchronized boxing or extreme knitting.                                                  

Step-by-step explanation:

We are given the following in the question:

Number of people who enjoyed watching synchronized boxing = 50

Number of people who enjoyed extreme knitting = 40

Number of people who enjoyed both activities = 20

We have to find the number of sports enthusiasts enjoy watching synchronized boxing or extreme knitting.

Formula:

Putting the values, we get,

Thus, 70 sports enthusiasts enjoy watching synchronized boxing or extreme knitting.

chiken

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.

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.