Step-by-step explanation:
According to 18 per dozen
18 ÷ 12 = 1.5
So she sells for 1.20
1.5 - 1.20 = 0.3
Or 25 %
Answer:
Step-by-step explanation:
6:1 i think
we are given
three consecutive even integers
Let's assume
first even integer is x
second even integer is x+2
third even integer is x+4
sum of the first two consecutive even integers is equal to three times the third so, we can get equation as
![x+x+2=3(x+4)](https://tex.z-dn.net/?f=%20x%2Bx%2B2%3D3%28x%2B4%29%20)
now, we can solve for x
![2x+2=3x+12](https://tex.z-dn.net/?f=%202x%2B2%3D3x%2B12%20)
![2x+2=3x+12](https://tex.z-dn.net/?f=%202x%2B2%3D3x%2B12%20)
![x=-10](https://tex.z-dn.net/?f=%20x%3D-10%20)
so, we get
first integer is -10
second integer is -10+2=-8
third integer is -10+4=-6.................Answer
<span>4d + 12 = 4(d+3)
...............................</span>