Question

1. a climber of a mountain with an altitude of 8.848 km. on the first climb, he managed to climb to a height of 3.78 km above sea level. on the climb he managed to climb as far as 2.5 km higher than the first ascent. how many more miles can it reach the top of the mountain on the second climb?

2. uncle has a rectangular farmland
with a width of 5 1/2 hm. the length of the land is 3/4 times its width.
how much is the farmland?

3. a map has a scale of 1: 1,000,000. distance of city A and city B on the map is 12 cm. what is the distance between the two cities actually?

4. a trader has a supply of 12.5 kg of wheat flour. half of the wheat flour has been ordered mother. the remaining wheat flour is put into some bags is 0.25 kg, how many bags of flour produced?

5. Celcius scale thermometer shows temperature 35 ° C. determine the temperature in the Reamur and Fahrenheit scale!

Answer 1

1. elevation on the second ascent:
3.78 + 2.5 = 6.28 km
altitude difference on the second ascent of the mountaintop:
8,848 - 6,28 = 2,568

so he had to climb another 2,568 miles to reach the top of the mountain.

2. length of land = 5 1/2 x 1 4/3 = 11/2 x 7/4 = 9 5/8 hm
land area = rectangular area
= length x width
= 9 5/8 x 5 1/2 = 77/8 x 11/2 = 847/16 = 12 15/16

so, the area of uncle's farm is 12 15/16 hm.

3. actual distance = 12: 1 = 12 x 1,000,000
---------------
1,000,000

= 12,000,000 cm = 120 km

so, the distance between the two cities is actually 120 km.

4. the remaining wheat flour = 1/2 x 12.5 = 6.25 kg
many bags of wheat flour
= 6.25: 0.25
= 625: 25 = 25

Thus, there are 25 bags of wheat flour with a weight of 0.25 kg each.

5. Reamur = 4/5 x 35 = 28 ° R

Fahrenheit = 9/5 x 35 + 32
= 63 + 32 = 95 ° F


sorry if it is wrong .....