Out of 30 students are surveyed 17 have a dog based on these results predict how many of the 300 students in the school have a dog

Question

monicarodriguez1 monicarodriguez1

12-11-2014
Mathematics

Answered

Out of 30 students are surveyed 17 have a dog based on these results predict how many of the 300 students in the school have a dog

Answer :

Other Questions

Caitlyn did 6/7 of the problems on her math correctly and 4 incorrectly. She did all the problems. How many were there?

what is a rational number between -1/6 and -2/6

2 m3 of soil containing 35% sand was mixed into 6 m3 of soil containing 15% sand. what is the sand content of the mixture?

Ned weighs 1.5 times as much as Jill and Tom weighs 15 kilograms more than Jill. If their combined weight is 190 kilograms, how much does each person weigh?

I am a number between 500 and 600. My Ones digit is 5. My tens digit is the difference between my ones and hundreds digits. Who am i

2 m3 of soil containing 35% sand was mixed into 6 m3 of soil containing 15% sand. what is the sand content of the mixture?

Ned weighs 1.5 times as much as Jill and Tom weighs 15 kilograms more than Jill. If their combined weight is 190 kilograms, how much does each person weigh?

luana luana · Answer 1 · 2014-11-12T19:26:23-05:00

luana luana

12-11-2014

[tex]From\ proportion:\\ 30\ students\ 17\ dogs\\ 300\ students\ x\ dogs\\\\Cross\ multiplication\\ 30x=300*17\\ 30x=5100\ \ \ | divide\ by\ 30\\ x=170\\\\ There\ will\ be\ 170\ dogs\ for\ 300\ students.[/tex]

Answer Link

emmybaby58 emmybaby58 · Answer 2 · 2014-11-12T19:28:19-05:00

emmybaby58 emmybaby58

12-11-2014

17 / 30 = x / 300

cross multiply

30x = 5,100

divide by 30

x = 170

or

[tex] \frac{17}{30} * 10 = \frac{170}{300} [/tex]

if it is simpler.

Answer Link