Question

Diferenta a doua nr este 438. aflati aceste nrv stiind ca 2,25% din primul nr este egal cu 8,(3)% din al doilea
ajutor plizzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
nu stiu sa fac si iau nota :(

Answer 1

a - b = 438
2.25 / 100 * a = 8,(3) / 100 * b
0.0225 * a = (83 - 8)/9 / 100 * b
0.0225 * a = 75/9 / 100 * b
0.0225 * a = 75/9*100 * b
0.0225 * a = 1/12 * b
0.0225 a = b / 12
0.0225 * 12 * a = b
0.27 a = b
a - 0.27 a = 438
0.73 a = 438
a = 438 / 0.73
a = 600
600 - b = 438
b = 162
Numerele sunt: 600 si 162.
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Answer 2

a - b = 438
2.25 / 100 x a = 8,(3) / 100 x b
0.0225x a = (83 - 8)/9 / 100 x b
0.0225 x a = 75/9 / 100 x b
0.0225 x a = 75/9x100 x b
0.0225 x a = 1/12 x b
0.0225 a = b / 12
0.0225x 12 x a = b
0.27 a = b
a - 0.27 a = 438
0.73 a = 438
a = 438 / 0.73
a = 600
600 - b = 438
b = 162