Word Problem

Question

In a certian year, solar and wind energy generation totaled 1015 trillion BTUs. Wind generated 52 trillion btus eight times that generated by solar energy. How much was generated by each source?

 

Solar energy generated __trillion BTU and wind energy generated ___ trillion Btus

Answer 1

If wind is 52 more than 8 times solar, then:

 

solar = s; wind = w;  s + w = total

wind = 8s + 52

total = s + 8s + 52 = 1015

simplify....

 

s + 8s = 9s

9s + 52 (- 52) = 1015 (- 52)

9s = 963

s = 107

w = 8(107) + 52

w = 908  

so....

 

s + w = 107 + 908 = 1015

 

Answer 2

Did you mean 52 trillion more than 8 times that generated by solar energy?