Answer:
-4
Step-by-step explanation:
Answer:
I believe there are 70 students in the theater!
Step-by-step explanation:
In the ratio 2:3 going to 28:? there is a pattern. You multiply 2 by 14 to get to 28, so if you multiply 3 by 14 you get 42. Add 42 to 28 for the total amount of students in class!
Have a nice night!
Answer:
44
Step-by-step explanation:
Given, 3x^2 + 3y^2 = 42
=>3(x^2 + y^2) = 42 =>x^2 + y^2 = 42/3= 14
Thus,
= (x - y)^2
= x^2 + y^2 - 2xy
= (x^2 + y^2) - 2xy
= 14 - 2(-15)
= 14 + 30
= 44
he saves $860 per month
calculate each of his outgoings
rent = 
× $3600 = 
= $900
food = 
× $3600 = 
= $1440
activities = 
× $3600 = 
= $400
savings = $3600 - ( 900 + 1440 + 400 ) = $860
