Express into algebraic form
10 + 6x = 4x - 4
Answer:
Step-by-step explanation:
it is not a function because -2 has two y values
Answer:
There are 80 marks in total.
Step-by-step explanation:
Let the number of total marks be
.
The percentage score of the student can be written as the ratio
.
However,
.
Equating the two:
.
Cross-multiply (that is: multiple both sides by
, the product of the two denominators) to get
.
.
In other words, there are 80 marks in total.
There are 130 centimeters in 1.3 meters