Question

Expresse cada fração como uma porcentagem

Answer 1

Explicação passo-a-passo:

3-a) 12%= 12/100= 0,12

3-b) 5%= 5/100= 0,05

3-c) 18%= 18/100= 0,18

3-d) 81%= 81/100= 0,81

3-e) 97%= 97/100= 0,97

3-f) 49%= 49/100= 0,49

3-g) 23%= 23/100= 0,23

3-h) 1%= 1/100= 0,01

3-i) 55%= 55/100= 0,55

4-b) 7/50= 7x2/50x2= 14/100= 14%

4-c) 11/20= 11x5/20x5= 55/100= 55%

4-d) 8/25= 8x4/25x4= 32/100= 32%

4-e) 1/50= 1x2/50x2= 2/100= 2%

4-f) 1/4= 1x25/4x25= 25/100= 25%

4-g) 3/4= 3x25/4x25= 75/100= 75%

4-h) 7/25= 7x4/25x4= 28/100= 28%

4-i) 9/25= 9x4/25x4= 36/100= 36%

4-j) 1/10= 1x10/10x10= 10/100= 10%

4-k) 13/20= 13x5/20x5= 65/100= 65%

4-l) 5/10= 5x10/10x10= 50/100= 50%

5-a) 6% de 550= 6/100x550/1=3300/100= 33

5-b) 52% de 1.500= 52/100x1.500/1= 78.000/100= 780

5-c) 11% de 300= 11/100x300/1=3300/100= 33

5-d) 15% de 4.500= 15/100x4.500= 67.500/100= 675