Set up a proportion.
Let x = the number of students in 29970 who speak 3 or more languages.
285/19 = 29970/x Cross multiply
285 x = 19 * 29970
285x = 569430
x = 569430/285
x = 5415 students speak 3 languages.
Answer:

Step-by-step explanation:

Add 2 to both sides:


Subtract 7x from both sides:


Divide both sides by -1:


Answer: y=6x+30
Step-by-step explanation:
Answer:
1.4000
2.5.551
3.6.8
4.10.00
5.4
Step-by-step explanation:
1 4066 as an example start from the end a 5 or more it turns to a zero and the one next to it
so in this case we now have 4100 but since it isn't 5 or more we make it a zero and move on so now we have 4000
sorry if I am wrong I am also an idiot so hopefully this helps for the future :)
Answer:
32
Step-by-step explanation:
(5^2)+7
5^2 = 5×5 =25
25 + 7 = 32