Answer:
Always
Step-by-step explanation:
In mathematics, when we say that two ratios form a proportion, we mean that the two ratios are equal.
Ex: Ratios and Proportions - Proportions - In Depth. A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."
A proportion is two ratios which have been set equal to each other; a proportion is an equation that can be solved. When I say that a proportion is two ratios that are equal to each other, I mean this in the sense of two fractions being equal to each other. For instance, 105 equals 21 .
The answer is C because the numbers increase by 2 each time.
Answer:
6 and 30
Step-by-step explanation:
n + 24
(n + 24) ÷ n = 5
n + 24 = 5n
24 = 4n
6 = n
Check
30 – 6 = 24
30 ÷ 6 = 5
Answer:
b=3
Step-by-step explanation:
If b is inversely proportional to c then
b is 5 when c is 12, means...
From where we obtain the value of k, the constant needed, which is equals to 5*12=60
Now... to find b when c=20, is just a matter of using our known variables.
