There are 25 students in a class and 10 of the students past their algebra test what percentage of the students pass to the test
1 answer:
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Answer:
The value of y for x = 8 is 60 .
Step-by-step explanation:
Given expression as :
For x = 2 , y = 15
Let the equation be written with constant k'
So, y = k x
Or, k =
∴ k =
<u>Now, again </u>
For x = 8
equation can be written as
y = k x
Or, y = × 8
Or, y =
∴ y = 15 × 4
I.e y = 60
Hence The value of y for x = 8 is 60 . Answer
So that is equal to 180 miles per 2 hours which is 90 miles per hour if each hour has the same m/hr rate.
You can set up a proportion:
let x = number of miles per hour
cross multiply and you get
2x=180
divide both sides by 2 and you get
x=90
so you get the same answer both ways,
90 miles per hour
You can set up a proportion:
let x = number of miles per hour
cross multiply and you get
2x=180
divide both sides by 2 and you get
x=90
so you get the same answer both ways,
90 miles per hour
