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Mashutka [201]
3 years ago
13

A map has a scale of 1 cm : 21 km. Two cities are 3.1 cm apart on the map. To the nearest tenth of a kilometer, what is the actu

al distance corresponding to the map distance?
Mathematics
1 answer:
MatroZZZ [7]3 years ago
8 0
For the answer to the question above,
use the concept of ratio and proportion. The ratio between 1 cm to 21 km should be the same as the ratio of 3.1 cm to the actual distance. Let x be the unknown actual distance and mathematically express the situation,
 
 (1 cm/ 21 km) = (3.1 cm / x km)

This equation gives a value for x which is 65.1 km. Therefore, the answer is letter C. 
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The correct answer is y=−1/16

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Writ all the factors other than 1 and the number itself <br><br><br>for 5th grade
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A prime number has exactly two factors, 1 and itself. For example, 13 is a prime number because the only factors of 13 are 1 and 13

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8 0
1 year ago
Dylan and his children went into a grocery store and where they sell peaches for $1 each and mangos for $0.50 each. Dylan has $1
mafiozo [28]

Answer:

8 mangoes

Step-by-step explanation:

1) lets create 2 systems of inequalities

where m=# of mangoes

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so m+p≥15 and 1m+0.5p≤15

lets substitute "13" in  the m+p inequality to see how many mangoes dylan can buy:

m+(13)≥15

subtract "13" from both sides:

m≥2

now we substitute "13" in the other inequality:

m+0.5(13)≤15

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subtract 6.5 from both sides:

m≤8.5

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seeing our restriction, we can buy 8 mangoes (since we can't have 1/2 a mango)

hope this helps!

3 0
3 years ago
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