exam Maths Puzzle Numerical Ability

Hello,


I need help with this:


If y varies directly as x and y = 25 when x = 10, find y when x = 4.


Thank you

Read Solution (Total 0)

exam Other Question
How many integers in the set of all integers from 1 to 100, unclusive, are not the square of an integer?

(A) 19
(B) 50
(C) 81
(D) 89
(E) 90 Hi, can I have some help with the following problem?

Sketch the graph of the given parabola and state the coordinates of its vertex and its intercepts.
y = 8x^2 + 5x
( , ) (v