book
Maths Puzzle
Numerical Ability
write each set in interval notation and graph it?
1. .3X+2.1(X-4)_<_-6.6
2. -5X+1_>_11 or 3X+5>26
hint: _>_ or _<_ is greater than or equal to or less than or equal. I
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book Other Question
A variable z varies jointly with x and the square of y. If z = 6 when x = 4 and y = 3, write the equation of joint variation.
Could you help me solve these linear inequalities by grahing?
5x+8y=48 6-y=(5x)/(8)