wayra and lily are both hiking along the same trail. wayra is walking at rate of 3.1 kilometers per hour and lily is walking at a rate of 3.6 kilometers per hour . they start their hikes at different time, but at 1:00pm , wayra passes the 3.0 kilometer marker and lily passes the 2.0 kilometer marker a. write a system of equations and solve by using substitutions . round the nearest tenth

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step-by-step explanation:

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

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step-by-step explanation:

$119.20

step-by-step explanation:

$372.50 - 60% off is $149. $149-20% off is $119.20