Answer:
It said there was 5 green marbles, and it said to draw 5, and you have 5 Green marbles, so green marbles is good to pick.
Step-by-step explanation:
To solve 4n you need to divide both sides by 4
So it means every 30 minutes he runs 6 miles
Answer:
see explanation
Step-by-step explanation:
note that 
= 
× 3 ( when multiplying exponents are added )
Given
← factor out on numerator
= 
= 
= 1
<span>the sum of the first and three times the second is 54.
x + 3y = 54
3y = 54 - x
y= 54 /3 - x / 3 = 18 -x /3
</span>xy = x (18 -x /3) = 18x - x^2 / 3 = - 1/3 x ^ 2 + 18 x
<span>
</span><span>since a<0, it is concave downward, and the vertex is the maximum value. That vertex occurs at x= - b /2a = (-18) / (-2/3) = 12
</span>
<span>The first number is x=12.
The second is y = </span><span>18 -x /3 = 18- 12/ 3 = 18 - 4 = 14 </span>
