Answer:
15 seconds
Step-by-step explanation:
120/8=15
Answer:
there is no solution
Step-by-step explanation:
theres no solution becuase its impossible for a to have 2 different values; you see that 0.1 and 0.01 are not equal, therefore a can not be equal,, otherwise the equation would be false
Answer: 5 more caps.
Step-by-step explanation:
10 of the 15 children have a cap.
To have every child wearing a cap you would need 5 more caps.
So your answer would be 5 caps.
Substituting (x, y) with (a, a), since we have:
3a=2a-4, which means that 3a-2a=-4, that is a=-4.
So, the point is (-4, -4).
Remark: a point which lies in the graph of an equation is a solution of that equation. So x=a, y=a satisfies the equation <span> 3y = 2x -4, which makes our substitution legitimate.
Answer: </span>(-4, -4).