Answer:
i) y∝x => y = kx and k = 2.5
ii) When x = 7, y is 17.5
Step-by-step explanation:
If y is directly proportional to x then according to the question
y∝x which means y =kx where k is any constant
From the above example
8y=20x comparing it with y = kx
y = (20/8)x
y = 2.5x
Here k = 2.5
i) y∝x => y =2.5x
ii) if x=7 then y = ?
From above
y=2.5x
Put x = 7
y = 2.5 x 7
y = 17.5
B) The system of equations has a solution
Answer:
vertical angle theorem
Step-by-step explanation:
angles that are opposite of each other and formed by two intersecting straight lines, are congruent.
5c +2e < or = 1000
This is because she cannot spend over $1000
Hope this helps!
Answer:
4.95238095238= x
Step-by-step explanation:
-87= 3(6-7x)
-87= 17-21x
-17 -17
-104= -21x
/-21 /-21
4.95238095238= x