If one term of a proportion is not known, cross multiplication can be used to find the value of that term.
x 3
-- = --
70 10
x * 10 = 70 * 3
10x = 210
10x 210
--- = ---
10 10
x = 21
This is from aaamath
identify the value of x that makes each pair of the ratios equivalent 6 to 8 and 18 to x
A.20
B:22
C:24
note: ms.sue if ur going to give me links plz don't reply to this question (i mean no disrespect)
2 answers
Which of the following are equivalent to 25%