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4 years ago

On a map, a distance of 2 cm represents 15 km. What is the distance (in km) between two cities that are 11 cm apart on the map?

Mathematics

1 answer:

GenaCL600 [577]4 years ago

6 0

Answer:

82.5 km

Step-by-step explanation:

Given:

$\frac{2cm}{15km} =\frac{11cm}{?km}$

Cross-multiply.

2x = 11(15)

Divide both sides by 2 and solve for x.

x = 82.5 km

Please mark as Brainliest! :)

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Answer:

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Step-by-step explanation:

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3 years ago

Prove that: (12^13–12^12+12^11)(11^9–11^8+11^7) is divisible by 3, 7, 19, and 37. The answer should be like: x^b*3*7*19*37. Also

n200080 [17]

Answer:

Step-by-step explanation:

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(12^12(11) + 12^11)(11^8(10) + 11^7) =

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[(12^11)(12x11 + 1)][(11^7)(11x10 + 1)] =

[(12^11)x(11^7)](12x11 + 1)(11x10 + 1) =

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