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cestrela7 [59]
3 years ago
14

a penguin walks south. It completes the first 1/2 mile in 1/5 hour and continues walking at the same rate. What is the penguin's

speed in miles per hour? show your work.
Mathematics
1 answer:
bulgar [2K]3 years ago
4 0
Let’s set one hour as the variable h.
We can write that 1/2 mile = 1/5h.
Your goal is to turn 1/5 h into just h. You can achieve this by multiplying both sides of the equation by 5.
h= 5/2 miles, or 2 1/2 miles. So the penguin would walk at the speed 5/2 miles per hour.
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3 years ago
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For how many positive integer values of x is the sum x^2+4x+4 less than 20?
fredd [130]
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3 0
3 years ago
Can someone please help with these please!!
ryzh [129]

Answer:

27.57

is the Mean

20 is the mode (most repetative)

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Step-by-step explanation:

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Monica sells lemonade over the summer and uses conical paper cups to serve
Alina [70]

Answer: She would need 206 paper cups.

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Each cone shaped paper cup has a diameter measuring 8 centimetres and 11 centimetres in height. The radius of the cone shaped cup therefore is 4 centimetres (radius equals diameter divided by two). The volume of each cup therefore is given as;

Volume of a cone = (πr²h)/3

Volume of a cone = (3.14 * 4² * 11)/3

Volume of a cone = 552.64/3

Volume of a cone = 184.2

If each cone could hold 184 cubic centimetres of lemonade, then the entire ten gallons would require the following number of cone shaped cups;

Number of cups = Total volume/Volume of a cup

Number of cups = 37850/184.2

Number of cups = 205.48

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Therefore Monica would need 206 cone shaped paper cups to empty the entire 10 gallons of lemonade.

4 0
3 years ago
I need help, what is 9^-2+181-69? this is math
satela [25.4K]

Answer:

193

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9^2 = 81+181=262-69= 193

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2 years ago
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