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Anna35 [415]
3 years ago
11

a newborn baby sleep can average of 16 hours in 24 hour period what percent of it at time does a newborn baby spend ???

Mathematics
2 answers:
Vlad [161]3 years ago
8 0

There are 24 h in a day, so 24 h is 100%.

16 h - x%

24 h - 100%

x=(16*100)/24≈ 66.67%

Salsk061 [2.6K]3 years ago
8 0

16/24=66.6(bar notation) so if you round to the tenths you get 66.7

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Question 2: At a swimming pool the ratio of those wearing sunscreen to
Brrunno [24]

Answer:

42

Step-by-step explanation:

5 0
3 years ago
The perimeter of a rectangle is given by the formula P = 2(l + w), what is the value of P if l = 2 cm and w = 1/2 cm?
Sonja [21]

Answer:

\large\boxed{C)\ 5cm}

Step-by-step explanation:

P=2(l+w)\\\\\text{Put}\ l=2cm\ \text{and}\ w=\dfrac{1}{2}cm\ \text{to the formula of the perimeter:}\\\\P=2\left(2+\dfrac{1}{2}\right)=(2)(2)+(2)\left(\dfrac{1}{2}\right)=4+1=5\ cm

8 0
3 years ago
The figure is made up of two shapes, a semicircle and a rectangle.What is the exact perimeter of the figure?
grandymaker [24]
Perimeter of circular area = πr = 3.14 * 10 = 31.4 mm

Perimeter of rectangular area = 30 + 20 + 30 = 80 mm

Total Perimeter = 80 + 31.4 = 111.4

In short, Your Answer would be 111.4 mm

Hope this helps!
7 0
3 years ago
Read 2 more answers
Melanie and Michael are on the north bank of a river that is flowing east to west at a speed of 0.5 m/s. They paddle their surf
IRINA_888 [86]

Answer:

total distance travel by them to cross river is 17.3 m

Step-by-step explanation:

Assume A be the initial position of both person and B as apposite point to A

u  component of velocity along SOUTH DIRECTION is 4 cos30 = 0.4330 m/s

v  component of velocity along SOUTH DIRECTION is 4 cos90 = 0 m/s

total speed will be = 0.4330 + 0  = 0.4330 m/s

time taken= \frac{width/ of/ river}{speed}

time taken = \frac{30}{0.4330} = 69.3 sec

component of u in downstream direction = 4 cos120 = -0.25 m/s

component of v in downstream direction = 4 cos 0 = 0.5 m/s

total component in downstream will be -0.25 + 0.5 = 0.25

total distance travel by them to cross river is = 0.25\times 69.3 = 17.3 mdownstream.

5 0
4 years ago
Round 92.471 to the nearest tenth
olga55 [171]
The answer would be 92.5.

The 4 is the tenth
The 7 is the hundredth
The 1 is the thousandth
3 0
4 years ago
Read 2 more answers
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