Answer:
Equations made up of multiple variables like formulas.
Step-by-step explanation:
Similar to how y = mx+b has many letters in it but we can input known values to solve for the values that we want.
Answer:
Brand 2 is the better deal
Step-by-step explanation:
ANSWER
C. 64.29
EXPLANATION
The bigger right triangle is similar to the smaller right triangle, therefore
![\frac{30}{14} = \frac{z}{30}](https://tex.z-dn.net/?f=%20%5Cfrac%7B30%7D%7B14%7D%20%20%3D%20%20%5Cfrac%7Bz%7D%7B30%7D%20)
Multiply both sides by 30;
![30 \times \frac{30}{14} = \frac{z}{30} \times 30](https://tex.z-dn.net/?f=30%20%5Ctimes%20%20%5Cfrac%7B30%7D%7B14%7D%20%20%3D%20%20%5Cfrac%7Bz%7D%7B30%7D%20%20%5Ctimes%2030)
Simplify
![z = \frac{900}{14}](https://tex.z-dn.net/?f=z%20%3D%20%20%5Cfrac%7B900%7D%7B14%7D%20)
![z = 64.28571429](https://tex.z-dn.net/?f=z%20%3D%2064.28571429)
We correct to the nearest hundredthth to obtain,
![z = 64.29](https://tex.z-dn.net/?f=z%20%3D%2064.29)
The correct choice is C.