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OlgaM077 [116]
3 years ago
12

21/x=84/120 solve the proportion​

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
3 0

Answer:  X= 30

Step-by-step explanation:

Hope that helped :)

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Solve the following multiplication and division problems.
algol13

Answer:

a. 22.5 km

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c. 95 m

d. (4.2)(10^{-5}) km

Step-by-step explanation:

a. You can convert from hectometers to kilometers, and then you can make the multiplication:

\frac{5hm}{10}=0.5km

(3km)(0.5km)(15)=22.5km

b. You can convert from centimeters to meters, and then you can make the multiplication:

\frac{44cm}{100}=0.44m\\(19m)(0.44m)(32)=267.52m

c. You only need to divide 1,140 meters by 12:

\frac{1,140m}{12})=95m

d. You can convert from hectometers to kilometers, from decameters to kilometers and from meters to kilometers, and divide this by 15:

\frac{6hm}{10}=0.6km

\frac{7dam}{100}=0.07km

\frac{5m}{1000}=0.005km

\frac{(3km)(0.6km)(0.07km)(0.005km)}{15}=(4.2)(10^{-5}) km

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3 years ago
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Vlad1618 [11]

Answer:

Arc JK: 27°

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JKM 180°

Step-by-step explanation:

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If sandys friends ate 0, 2, 3, 4, 6, 6, and 7 pretzels, the mean of the data would be 4. So yes sandy is correct.
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