Answer:
Multiply both sides by 3x + 7
Step-by-step explanation:
The reason you must multiply first is because you generally want to stay away from binomial division, as it is much easier to work without fractions. Once you multiply both sides by 3x + 7, you effectively only have to work with numerators now, instead of both numerators and denominators. After you have shifted by multiplying both sides by 3x + 7, you can isolate x by adding and subtracting from both sides, but you generally what to stay away from dividing variables.
Hope this helps!
Answer:
5) A = 4
6) B = -1
Step-by-step explanation:
Question 5
Substitute (2, -5) into the equation to find the missing coefficient
A(2) + (-5) = 3
2A - 5 = 3
2A = 8
A = 4
Question 6
Substitute (2, 7) into the equation to find the missing coefficient
3(2) + B(7) = -1
6 + 7B = -1
7B = -7
B = -1
Answer:
Part a) Chris completes 2.13 miles per day.
Part b) Chris complete 29.82 miles in 2 weeks.
Step-by-step explanation:
Part 1) Since Chris rode 127.8 miles for 60 days we can calculate the amount of distance that he covered in each day using the basic ratio and proportion as
Distance covered in each day =
Part 2)
Since we know that the biker completes 2.13 miles each day and in 2 weeks there are 14 days thus the distance Chris completes in 14 days equals
15/4 is the correct answer