Answer:
720 = 36*20
Step-by-step explanation:
720 = 36*20
so, count the good ones here and multiply by 20 to estimate the larger amount.
if an ordered pair is a solution, it should satisfy the equation.
see the first option
, if you put $x=4$ and $y=12$
you'll get $12=12$ which is true.
now the last option, $y=8-x$ put $x=4$ and $y=12$
$12=8-4\implies 12\ne4$ thus it is not a solution.
So option 4 is correct
Answer:
5/6
Step-by-step explanation:
4/6 + 1/6 = 5/6
Answer: <em>x=100</em>
Step-by-step explanation:
<em>Let's start by multiply 1/5 on both sides to cancel it out with the x</em>
<em>1/5x=20</em>
<em>(1/5) (1/5)</em>
<em>x=100</em>
<em></em>
<em>1/5 MULTIPLIED BY 20 CAN ALSO BE 5 TIMES 20!</em>