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irina [24]
3 years ago
9

Forty-three girls went camping. The girls were able to choose to participate in karate and swimming. Twenty-one girls went swimm

ing, eight participated in both activities, and seven girls did neither. How many girls only did karate?
Help PLEASE
Mathematics
2 answers:
horsena [70]3 years ago
4 0
7 girls participated only in Karate.
21 + 8 = 29
29 + 7 = 36
36 + 6 = 43
sladkih [1.3K]3 years ago
3 0
42-21=21
21-8=13
13-7=6

6 girls
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Step-by-step explanation:

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y - 4 = -2/3x - 2

y = -2/3x + 2

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Ramon knows there are 60 seconds in 1 minute. He writes the equation 60s=m to find the number of minutes, m, in any number of se
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Step-by-step explanation:

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3 years ago
You’ve bought a cylindrical thermos 8 in. high with a base 6 in. across. How much coffee can you put in the thermos?
lana66690 [7]

Answer:

3.706 liters

Step-by-step explanation:

Hello

assuming that these measures correspond to the internal measures of the thermos,

we can calculate the volume as, the volume of a cylinder, which is given by

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where r is the radius of the base, and h the height

also

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Step 1

let

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Step 2

Put the values into the equation

V=\pi r^{2} h\\V=\pi (3in)^{2} (8 in)\\V=\pi *72 \ in^{3} \\\\V=72\pi\ in^{3} \\\\

Step 3

Now, the unit (cubic inches) is not an usual unit for measuring coffee, let´s convert cubic inches into liters by knowing

1 inch = 2.54 cm

1 litro =  1000 cubic centimeters

if\ 1\ inch\ = 2.54\ cm\\(1\ inch)^{3} =(2.54\ cm)^{3}\\\\1\ inch^{3}=16.3870\ cm^{3}

1 cubic inch = 16.3870 cubic centimeters

1\ cubic\ inch\ = 16.3870\ cubic\ centimeters\\\\\\72\pi =x?\ cubic\ centimeters\\\\x=\frac{72\pi \cubic \ inch\ \*16.3870 }{1\ cubic\ inch} \\\\x=3706.65\ cubic\ centimeters

Step 4

Finally, convert cubic centimeters into liters1000\ cubic\ centimeters =1\ liter \\\\\\3706.65\ cubic\ centimeters = x?\ liters\ centimeters\\\\x=\frac{3706.65 \cubic \ centimeters\ \*1 liter}{1000 cubic centimeters} \\\\x=3706.65\ cubic\ centimeters\\x=3.706 Liters

I can put 3.706 liters in the thermos

Have a good day

4 0
4 years ago
Please help me on this question! And explain how you got your answer please!
Aloiza [94]

Answer:

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3 years ago
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