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5 dni temu · Math Problems with Proportions. Proportions state that two ratios are equal, so they involve four quantities and one or two different types of units. For instance, if you knew that a car traveled 70 miles in one hour and 140 miles in two hours, you could represent this with the following proportion: 70 miles/1 hour = 140 miles/2 hours.
2 dni temu · Unit Rates. In word problems, you'll often be asked to calculate unit rates from ratios. Examples of unit rates are cost per item and miles per hour. Unit rates are a simpler way to express ratio relationships, because they tell you the quantity per unit.
4 dni temu · Tatiana ran the marathon with an average speed of 0.09 miles per minute. What was her speed to the nearest mile per hour? A) 5 miles per hour B) 7 miles per hour C) 9 miles per hour D) 11 miles per hour
4 dni temu · - The table below represents Bree's trip from her home to the library and back. On her way to the library she travels at 6 miles per hour. On her way home, she travels at 12 miles per hour. The total time is 2 hours. Which equation can be used to find the distance from Bree's house to the library?
4 dni temu · Study with Quizlet and memorize flashcards containing terms like If a car travels 400m in 20 seconds, how fast is it going?, If you move 50 meters in 10 seconds, what is your speed?, You arrive in my class 45 seconds after leaving math, which is 90 meters away. How fast did you travel? and more.
3 dni temu · Practice Problems. Introduction to Mixtures. We can use fractions, ratios, or percentages to describe quantities in mixtures. If 200 grams of a saline solution has 40 grams of salt, what percentage of the solution is salt? A B C.
5 dni temu · Yes, pedometers or fitness trackers can be useful tools to estimate the number of steps in a mile. These devices use sensors to measure your movements and calculate the number of steps you take. You can approximate your steps per mile by checking the step count displayed on the device after walking or running a mile. 3.
