Emily and Kylie are 140 miles apart, traveling towards each other. If Kylie travels 12 mph and Emily travels 8 mph how long until they meet?

Question

Emily and Kylie are 140 miles apart, traveling towards each other. If Kylie travels 12 mph and Emily travels 8 mph how long until they meet?

in progress 0
Thái Dương 3 months 2021-07-24T13:47:16+00:00 1 Answers 3 views 0

Answers ( )

    0
    2021-07-24T13:48:45+00:00

    Answer: 7 hr

    Step-by-step explanation:

    Given

    Distance between Emily and Kylie is 140\ \text{miles}

    Speed of Emily v_e=12\ mph

    Speed of Kylie v_k=8\ mph

    Distance traveled by Emily \Rightarrow d_e=12t

    Distance traveled by Kylie \Rightarrow d_k=8t

    \Rightarrow 12t+8t=140\\\Rightarrow 20t=140\\\Rightarrow t=7\ hr

    They will meet after 7 hour.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )