

You have

for all

, and dividing by

gives

, or

. By the racetrack principle, then, it follows that

.
Answer: 3.5a+5b=470 and a+b=115
Step-by-step explanation:
Answer:
English to Algebra translation says that "four less than twice a number is 10" yields the equation 2N - 4 = 10 2N = 14 N = 7
Step-by-step explanation:
Answer:
m = 11
Step-by-step explanation:
7m - 17 = 60
Add 17 to both sides;
7m = 77
Divide both sides by 7;
m = 11
The correct order is: 0.25, 4/8=0.5 so they go above each other, 3/4