124.700 I think I am not sure though
Answer:
5
Step-by-step explanation:
1. according to the condition
![\frac{price \ radio1}{price \ radio2} =\frac{x}{y}](https://tex.z-dn.net/?f=%5Cfrac%7Bprice%20%5C%20radio1%7D%7Bprice%20%5C%20radio2%7D%20%3D%5Cfrac%7Bx%7D%7By%7D)
2. when the both prices are increased the ratio is
![\frac{x+20}{y+20}=\frac{5}{2}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%2B20%7D%7By%2B20%7D%3D%5Cfrac%7B5%7D%7B2%7D)
3. when the both prices are reduced the ratio is
![\frac{x-25}{y-25} =\frac{5}{1}](https://tex.z-dn.net/?f=%5Cfrac%7Bx-25%7D%7By-25%7D%20%3D%5Cfrac%7B5%7D%7B1%7D)
4. using the equations written in steps 2&3 it is possible to make up the system of the two equations:
![\left \{ {{\frac{x+20}{y+20}=\frac{5}{2} } \atop {\frac{x-25}{y-25}= \frac{5}{1} }} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7B%5Cfrac%7Bx%2B20%7D%7By%2B20%7D%3D%5Cfrac%7B5%7D%7B2%7D%20%20%7D%20%5Catop%20%7B%5Cfrac%7Bx-25%7D%7By-25%7D%3D%20%5Cfrac%7B5%7D%7B1%7D%20%7D%7D%20%5Cright.)
where x=160; y=52.
5. ration x:y=5.
Answer:
15 i think
Step-by-step explanation:
65 miles per hour means that for each hour, it goes 65 miles
65 miles*2 hours= 130 miles
Final answer: 130 miles
Answer:
Extended facts are basic addition facts multiplied by a power of 10, such as 10, 100, 1,000.
Step-by-step explanation:
Example: 7 + 6 = 13 (basic) 70 + 60 = 130 (extended) 700 + 600 = 1300 (extended).