Since our unit is $, we'll convert #1/2# to dollars. To find out, we'll set up two rates, because we have 2 different units, dollars and number of sodas: Since we only need 15 sodas, we're wondering how much each soda costs at the discounted rate. The local pizza place offers a group discount on soda purchases: $10 for 20 sodas. Let's say we'd like to buy a soda for each student in the classroom. Thus, there are 2 boys in the room for every 1 girl. If we simplify the ratio, we see that the ratio of boys to girls is 2:1, since #10 -: 5 = 2# and #5 -: 5 = 1#. This means the ratio of boys to girls is 10:5. The difference is that a rate is a comparison of two numbers with different units, whereas a ratio compares two numbers with the same unit.įor example, in a room full of students, there are 10 boys and 5 girls. These are with either a colon or a fraction bar.Ģ/3 = 4/6 has the same meaning as 2:3 = 4:6īoth rates and ratios are a comparison of two numbers.Ī rate is simply a specific type of ratio. Algebra Linear Equations Equations with Ratios and ProportionsĪ proportion is the name we give to a statement in which 2 ratios are equal.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
March 2023
Categories |