Question

Calcule o valor numérico das expressões algébricas do 6º caso:

a) 10A + 2B + 10C, A = 5 , B = 10 e C = 7

b) 9D + 3E + 10F, D = 6 , E = 8 e F = 7

c) 9G + 4H + 10I, G = 7, H = 4 e I = 10

d) 8J + 5K + 10L, J = 8 , K = 3 e L = 7

e) 7M + 6N + 10O, M = 9 , N = 8 e O = 7

f) 8P + 7Q + 10R, P = 9 , Q = 9 e R = 7

g) 9S + 8T + 10U, S = 7 , T = 5 e U = 7

h) 8V + 9X + 10Z, V = 6 , X =4 e Z = 10

Answer 1

Resposta:

a) 10A + 2B + 10C, A = 5 , B = 10 e C = 7

$10.5 + 2.10 + 10.7 \\ 50 + 20 + 70 \\ 70 + 70 \\ = 140$

b) 9D + 3E + 10F, D = 6 , E = 8 e F = 7

$9 \times 6 + 3 \times 8 + 10 \times 7 \\ 54 + 24 + 70 \\ 54 + 94 \\ = 148$

c) 9G + 4H + 10I, G = 7, H = 4 e I = 10

$9.7 + 4.4 + 10.10 \\ 63 + 16 + 100 \\ 63 + 116 \\ 179$

d) 8J + 5K + 10L, J = 8 , K = 3 e L = 7

$8.8 + 5.3 + 10.7 \\ 64 + 15 + 70 \\ 64 + 85 \\ = 149$

e) 7M + 6N + 10O, M = 9 , N = 8 e O = 7

$7.9 + 6.8 + 10.7 \\ 63 + 48 + 70 \\ 63 + 118 \\ 181$

f) 8P + 7Q + 10R, P = 9 , Q = 9 e R = 7

$8.9 + 7.9 + 10.7 \\ 72 + 63 + 70 \\ 72 + 133 \\ 205$

g) 9S + 8T + 10U, S = 7 , T = 5 e U = 7

$9.7 + 8.5 + 10.7 \\ 63 + 40 + 70 \\ 103 + 70 \\ 173$

h) 8V + 9X + 10Z, V = 6 , X =4 e Z = 10

$8.6 + 9.4 + 10.10 \\ 48 + 36 + 100 \\ 48 + 136 \\ = 184$