Answer:
Step-by-step explanation:
<u>Solve for y:</u>
Add - 2x to both sides
- 2x + y - 2x = 7 - 2x
- y = 7 - 2x
or
The triangles are similar by the SSS (side-side-side) similarity theorem because the sides of the two triangles are in proportion (5/15 = 3/9 = 4/12)
Hope this helps =)
Answer: 4.7
<u>Step-by-step explanation:</u>
Use Soh Cah Toa

Use the formula I=Prt
1200=5000*4r
1200/20000=r = 0.06 or 6% interest
Have a nice day :D