Direct proportion
y varies directly as x and y=32 when x=4. Find the constant of variation.
Correct answer:
![](/img/73/linearna.jpg)
Showing 1 comment:
Jozef Jablonsky
Q:i need help. what is the Constant of proportionality for y = 7x + one third?
A: y = 7x+ 1/3 is not proportional relationship due 1/3 member.
if y=7x, then it is proportional relationship and constant of proportionality is k=7
A: y = 7x+ 1/3 is not proportional relationship due 1/3 member.
if y=7x, then it is proportional relationship and constant of proportionality is k=7
You need to know the following knowledge to solve this word math problem:
Grade of the word problem:
Related math problems and questions:
- Directly and inversely
If z varies directly as x and inversely as y, and z = 16 when x = 3 and y = 2, find z when x = 5 and y = 3
- Jointly function
If z varies jointly as x and y, and z = 12 and x = 2 and y = 4, find z when x = 5 and y = 2
- Square function
If z varies jointly as x and the square of y, and z = 20 when x = 4 and y = 2, find z when x = 2 and y = 4.
- Jointly and cube power
If y varies jointly as x and the cube of z and y=16 when x=4 and z=2, find an equation representing this relationship. a. y=xz b. y = 2xz³ c.y = 2kx/z³ d.y = xz³/2
- Mackie's
Mackie's income varies directly from the number of days that she works. If she earns 8000 pesos in 20 days, how much will she earn if she works three times as long?
- Two hotels
The total cost for a hotel room varies directly with the number of nights you stay. At hotel A, three nights cost a total of P6000. At hotel B, a five-night stay costs a total of P9000. If you will stay for four nights which hotel has a cheaper cost?
- Macky
Macky's income varies directly from the number of days that she works. If she earns 8000 pesos in 20 days, how much will she earn if she works three times long?