Question

(PLEASE HELP) River C is 100 miles longer than RIver D. If the sum of their length is 5,500 miles what is the length of each river?

Answer 1

Let C equal the length of river C
Let D equal the length of river D

C+D=5500
C+100=D

Do you need more help solving this set of simultaneous equations?

Answer 2

yea

Answer 3

here is one

Answer 4

C+C+100=5500
2C+100=5500
2C=5400
C=2700

2700+D=5500
D=5500-2700
D=2800

Answer 5

ah thanks!

Answer 6

a. Solve the system of linear equations using substitution. x = 8y - 4
[03:37:28] Nicoluu-Chan<3: x + 8y = 6
[03:38:13] Nicoluu-Chan<3: b. Which expression would be easier to substitute into the other equation, in order to solve the problem? explain your reasoning

Answer 7

oh