Kejang otot terjadi karena kegiatan otot yang berlebihan. Berikut ini peristiwa yang dapat menyebabkan seseorang mengalami kejang otot yaitu ... a. kurang asupan vitamin C b. olahraga berat tanpa pemanasan c. masuknya bakteri Clostridium tetani d. posisi duduk yang tidak tepat 13
Answer (4)
x − n u mb er o f s ki ers x + 1250 − n u mb er o f s n o w b o a r d ers x + 1250 x = 2 1 ∣ cross m u lt i pl y 2 x = x + 1250 ∣ s u b t r a c t x f ro m b o t h s i d es x = 1250 A n s w er : 1250 − s ki ers 1250 + 1250 = 2500 − s n o w b o a r d ers
The correct answer is:
1250 skiers and 2500 snowboarders.
Explanation :
The ratio is 1:2. We are told that more snowboarders buy season tickets than skiers; this means the ratio is skiers/snowboarders.
Let x be the number of skiers that bought season tickets. Since 1250 more snowboarders bought season tickets, this means the number of snowboarders would be represented by x+1250.
We can use the ratio to set up a proportion:
2 1 = x + 1250 x
Cross-multiply:
(x+1250)(1) = x(2)
x+1250 = 2x
Subtract x from each side:
x+1250-x = 2x-x
1250 = x
This means the number of skiers is 1250.
The number of snowboarders would then be 1250+1250 = 2500.
There are 2500 skiers and 3750 snowboarders who bought season passes. The calculation was based on the ratio of snowboarders to skiers being 1:2, with 1250 more snowboarders than skiers. This was done by setting up an equation to find the values of both groups.
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Jawaban:B. Olahraga berat tanpa pemanasan.Kejang otot terjadi karena otot bekerja terlalu keras, seperti olahraga berat tanpa pemanasan. Jadi, B adalah pilihan yang paling tepat.
