We want the ratio of calories of an orange to a cookie and are told that an orange has 35 calories and a cookie has 130 so:
O:C=35:130
The greatest common factor of 35 and 130 is the product of the shared primes of the numbers prime factorization.
35=5*7 and 130=2*5*13, so the GCF is just 5, so divide each term by 5
O:C=7:26
9/26 is the correct answer
Answer:
38
Step-by-step explanation:
38
