Mr. and mrs. storey drive 3200 miles in all during their vacation. mr. storey drove 3 times as many miles as mrs. storey how many miles did mr. storey drive how many miles did mrs. storey drive

This can be solve by establishing equations.
let x be the miles mrs. storey drove
y be the miles mr storey drovee
 
the first equation is
y = 3x

second equation
x + y = 3200
then substitute equation 1

x + 3x = 3200
4x = 3200
x = 800 miles mrs storey drove
y = 3x = 2400 miles mr storey drove

Ithink the answer is discovery verbs because they are quite similar to the verb 'discovering'

A