Answer:
y = 6.5
Step-by-step explanation:
When triangles are similar, we can set up a proportion to compare the sides. I will have the "left" side on the bottom of the fractions, and the side I am solving for on the top.

[Cross multiply]
12y = 78
y = 6.5
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly.
- Heather
Answer:
x = 6
Step-by-step explanation:
<em>This can be written as a ratio</em>
7 : 2
21 : x
<em>If you times one side by 3, you have to multiply the other side by three too:</em>
2 × 3 = 6
∴ x = 6 when y = 21
What is mise en place? It's French and means "everything in its place." This technique allows chefs to assemble meals quickly and with little effort.