Answer:
60
Step-by-step explanation:
5 plus 4 is nine.
I based everything on how much times more it was at first, and did that times 9 for every name.
I added up how much more boxes they got in total and got 60.
Use the quadratic formula to solve it:
<span>Y= -6x^2 +100x -180
a= -6
b= 100
c= -180
x = [-b +- sq root(b^2 - 4ac)] / 2a
x = [-100 +- sq root (10,000 -4*-6*-180)] / -12
x = [-100 +- </span><span>sq root (10,000 -4,320)] / -12
</span><span><span>x = [-100 +- <span>sq root (5,680)] / -12
</span></span>x1 = (-100 + </span>
<span>
<span>
<span>
75.3658
</span>
</span>
</span>
<span>) / -12
</span>x1 =
<span>
<span>
<span>
24.6342 / -12
</span></span></span><span>x1 = -2.05285
x2 = </span>(-100
-<span>
<span>
75.3658
</span>
</span>
<span>) / -12
</span>x2 = (-<span>
175.3658
</span>
<span>) / -12
x 2 = </span><span><span><span>14.6138
</span> </span></span><span>
</span>
Answer:
12 = 3/4x, x - 4.8 = 9, and x - 3.1x = 14.7 + 12 are all equations because you have an equal sign that has you solve for each side and you can solve for the variable, unlike with the other ones you can't solve for the variable.
Step-by-step explanation:
Answer:
a or c because they both are equal to 27
Step-by-step explanation: