exam Maths Puzzle Numerical Ability

Please help! Solve each compound inequality. State the solution set using interval notation and graph it.
-1/2x <6 or 2/3x< 4

Read Solution (Total 0)

exam Other Question

The sum of two numbers is 25. The sum of their squares are 313. Find the numbers.

My work:
x+y=25
x^2+y^2=313

x=x
y=25-x

x^2+(25-x)^2=313
x^2+625+x^2-50x=313
2x^2-50x+312=0
2(x^2-25x+156)=0 The time in seconds that it takes for an object to fall to the ground from a building that is 1400 ft high.

t=1/4 sqrt s

any help would be greatly appreciated.