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Ronch [10]
3 years ago
14

4 m + 9 + 5 m - 12 equals 42

Geography
1 answer:
White raven [17]3 years ago
4 0
Simplifying 4m + 9 + 5m + -12 = 42 Reorder the terms: 9 + -12 + 4m + 5m = 42 Combine like terms: 9 + -12 = -3 -3 + 4m + 5m = 42 Combine like terms: 4m + 5m = 9m -3 + 9m = 42 Solving -3 + 9m = 42 Solving for variable 'm'. Move all terms containing m to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + 9m = 42 + 3 Combine like terms: -3 + 3 = 0 0 + 9m = 42 + 3 9m = 42 + 3 Combine like terms: 42 + 3 = 45 9m = 45 Divide each side by '9'. m = 5
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The reason why a warmer summer would be present at the middle of a landmass is because landmass:

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2. Land is opaque, therefore insolation only concentrate in shallow areas, making the surface temperature increase.

3. There is no mixing of warm and cold layers, along with the lack of presence of evaporation, there would be less cooling

In sum, the above effects can be called continental climate, and thus the middle of a land mass is cooler.

For your reference, here's why the other options are not correct:  

At a high elevation near an ocean - near the ocean would mean it has a maritime effect and therefore a cooler summer.

At a high latitude - with the less dense air, heat will be absorbed faster resulting in faster heat loss hence a cooler summer.

Hope it helps!

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