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Mathematics 16 Online
OpenStudy (anonymous):

proportions quiz;; ((look below))

OpenStudy (kc_kennylau):

lol i appreciate your intrigue :p (no offense)

OpenStudy (anonymous):

8x-2/9 = 2/1 a.)9/4 b.)5/2 c.)9/2 d.)9/8

OpenStudy (anonymous):

8/15= 4a/a+b a.)11/15 b.)4/15 c.)2/13 d.)59/8

OpenStudy (anonymous):

(8x - 2)/9 = 2/1 cross multiply (1)(8x - 2) = (9)(2) 8x - 2 = 18 8x = 18 + 2 8x = 20 x = 20/8 x = 5/2

OpenStudy (anonymous):

On a soccer team, 5 out of 13 players surveyed said they had two or more siblings. The league has 520 players. Which is the best prediction of the number of players in the league that have two or more siblings? a.)x/5=13/520 b.)x/520=5/13 c.)x/520=13/5 d.)x/13=5/520

OpenStudy (anonymous):

8/15 = (4a)/(a + b) Is this question written correctly ? You have 2 variables to solve for. Which one are you wanting to solve for ?

OpenStudy (anonymous):

it says what is the ratio of a to b

OpenStudy (anonymous):

8/15 = (4a)/(a + b) cross multiply 8(a + b) = (4a)(15) 8a + 8b = 60a 8b = 60a - 8a 8b = 52a ratio of a to b = 52/8 or 13/2 ratio of b to a = 8/52 = 2/13

OpenStudy (anonymous):

x/520 = 5/13 is the next answer

OpenStudy (anonymous):

On a soccer team, 5 out of 13 players surveyed said they had two or more siblings. The league has 520 players. Which is the best prediction of the number of players in the league that have two or more siblings? a.)12 b.)120 c.)200 d.)40

OpenStudy (anonymous):

The ratio of the perimeters of two rectangles is 4 to 9. The perimeter of the larger rectangle is 54 inches. What is the perimeter of the smaller rectangle? a.)121.5 inches b.)13.5 inches c.)36 inches d.)24 inches

OpenStudy (anonymous):

x/520 = 5/13 cross multiply (13)(x) = (520)(5) 13x = 2600 x = 2600/13 x = 200 ----->answer C

OpenStudy (anonymous):

4/9 = x/54 cross multiply (9)(x) = (54)(4) 9x = 216 x = 216/9 x = 24 in ---> answer D

OpenStudy (anonymous):

d-(^ v ^)z thank you~!

OpenStudy (anonymous):

glad to help :)

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