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

5 0

3 years ago

Is f(x) = sec x concave up or concave down at x = 17\pi/4<br>

inessss [21]

Answer:

x^xtfr

Step-by-step explanation:

6 0

3 years ago

Setting 7/3 equal to which ratio would result in a valid proportion? 9/49 18/42 42/18 49/9<br>

Vinvika [58]

49/9 because if you simplify it, it would be 7/3 which is equal to the original ratio.