- ada berapa bilangan dari 20 sampai 99 yang memiliki angka 1 ? ... - Jumlah 5 bilangan berurutan adalah 25 . Berapakah bilangan terbesarnya ? ..... - The sum of Orange and Apple that in the box are 100. Then added to the basket 23 Oranges and 32 Apples so that the ratio becomes 2 : 3. Determine the ratio of the number of oranges and aplles at firts ?....
krystal14
1. 8 bilangan 2. ga tau 3. kalau ga 1/2 atau 5/5
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ratihyutaka
+- ada berapa bilangan dari 20 sampai 99 yang memiliki angka 1 ? ... jawab : bilangan-bilangan tersebut adalah = 21,31,41,51,61,71,81,91 banyaknya = 8
- Jumlah 5 bilangan berurutan adalah 25 . Berapakah bilangan terbesarnya ? jawab : x + (x+1) + ( x+2) + (x+3) + (x+4) = 25 ⇔5x + (1+2+3+4) = 25 ⇔ 5x + 10 =25 ⇔ 5x = 25 - 10 = 15 ⇔ x = 15 ÷ 5 ⇔x=3 bilangan terbesarnya x + 4 = 3+4 = 7 - The sum of Orange and Apple that in the box are 100. Then added to the basket 23 Oranges and 32 Apples so that the ratio becomes 2 : 3. Determine the ratio of the number of oranges and aplles at firts ?.... jawab : orange + apple = 100 ⇔ orange = 100 - apple ⇔(orange + 23 ) : (apple+32) = 2 : 3 ⇔(100-apple+23) : (apple+32) = 2 : 3 ⇔3(100-apple+23) = 2(apple+32) ⇔300-3apple+69=2apple +64 ⇔300+69-64 = 2 apple + 3 apple ⇔305 = 5 apple ⇔1 apple = 305 : 5 ⇔1 apple = 61 orange = 100- apple=100-61 ⇔orange = 39 so, Determine the ratio of the number of oranges and aplles at firts ⇔orange : apple = 39 : 61
2. ga tau
3. kalau ga 1/2 atau 5/5
jawab : bilangan-bilangan tersebut adalah = 21,31,41,51,61,71,81,91
banyaknya = 8
- Jumlah 5 bilangan berurutan adalah 25 . Berapakah bilangan terbesarnya ?
jawab :
x + (x+1) + ( x+2) + (x+3) + (x+4) = 25
⇔5x + (1+2+3+4) = 25
⇔ 5x + 10 =25
⇔ 5x = 25 - 10 = 15
⇔ x = 15 ÷ 5 ⇔x=3
bilangan terbesarnya x + 4 = 3+4 = 7
- The sum of Orange and Apple that in the box are 100. Then added to the basket 23 Oranges and 32 Apples so that the ratio becomes 2 : 3. Determine the ratio of the number of oranges and aplles at firts ?....
jawab :
orange + apple = 100
⇔ orange = 100 - apple
⇔(orange + 23 ) : (apple+32) = 2 : 3
⇔(100-apple+23) : (apple+32) = 2 : 3
⇔3(100-apple+23) = 2(apple+32)
⇔300-3apple+69=2apple +64
⇔300+69-64 = 2 apple + 3 apple
⇔305 = 5 apple
⇔1 apple = 305 : 5 ⇔1 apple = 61
orange = 100- apple=100-61 ⇔orange = 39
so,
Determine the ratio of the number of oranges and aplles at firts
⇔orange : apple = 39 : 61