Answer: He bikes 48.3 miles for 7 days
Ronald bikes 6.9 miles every day
This implies that he covered a distance of 6.9 miles daily
Mathematically,
6.9 miles is equivalent to 1 day
6.9 miles ----------- 1 day
We want to calculate the miles he bikes for 7 days
Let the miles he bikes for 7 days be x
Hence, x miles is equivalent to 7 days
x miles -------- 7 days
6.9 miles = 1 day
x miles = 7 days
Introduce cross multiply
1 * x = 6.9 x 7
x = 48.3 miles
Hence, Ronald bikes 48.3 miles for 7 days