jevonewilliams3106
09.10.2019 •
Mathematics
Jennifer has 4/5 as many pictures on her camera as luis does jennifer has 28 pictures on her camera how many pictures do jennifer and luis have in all
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Ответ:
Jennifer has 28 pictures
Luis has 35 pictures.
In total, they have 28 + 35, or 63 photos on their camera.
Ответ:
7.5 seconds.
Step-by-step explanation:
Substitute the distace 220m in the given equation:
d = 19t + t^2
200 = 19t + t^2
t^2 + 19t - 200 = 0
t = [-19 +/- sqrt(19^2 - 4*1*-200)] / 2
t = -19 +/- sqrt(1161) / 2
t = ( -19 +/- 34.07) / 2
t = 7.535 seconds