If a jellyfish spends 4 hrs and 45 minutes swimming and another jellyfish swims 9 hrs swimming how many hrs do they swim in 6 hrs

In 6 hours, the first jellyfish will have swum 4 3/4 hours.

In 6 hours, the second jellyfish will have swum 6 hours.

Together, they will have swum 4 3/4 + 6 = 10 3/4 hours in 6 hours.

Actually, it depends on how much time they swim and rest in the 6-hour interval you're counting. Here, we have assumed that the interval of observation overlaps completely the times the jellyfish spend swimming, and that the second jellyfish does not rest during that time.

the answer is d

step-by-step explanation:

y+3=-4(x-2)

y+3=-4x+8

  -3         -3  

y=-4x+5

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation: