Levon, who weights 153 lb, sits 6 ft from the seesaw support. find the constant of variation.

918 is the constant of variation.

Step-by-step explanation:

Since, In see saw the weight (w) of an object is inversely proportional to the distance (d) from  the seesaw support.

That is w ∝ 1/d

or w = k/d

where k is the constant of variation.

Here, The weight of Levon, w = 153 lb

And, his distance from the see saw support, d = 6 ft

Therefore. 153 = k/6

⇒k= 153 × 6 = 918

50 min

step-by-step explanation:

they will be decreasing both their times in half

60 / 2 = 30

40/2 = 20

30 + 20 = 50

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step-by-step explanation: