Question

b) De maneira semelhante, calcule. *682 *83²*96²*102²
68²= ( 70-2)
83² = ( 80 + 3)2 =
96² = ( 100-4)2 =
102²= (100 + 2)2 =​

Answer 1

Resposta:

Explicação passo-a-passo:

) 66,8 -- x(km)

 100,0-- 250(km)

 250.66,8=100x

 16700=100x

 16700/100=x

 167=x(km)

 R-->66,8km

c) 40 -- x(R$)

  100 -- 156(R$)

  40.156=100x

  6240=100x

  6240/100=x

  62,4=x

  R-->62,4R$

b) 1,5 -- x(L)

 100 -- 8,4(L)

 8,4.1,5=100x

 12,6=100x

 12,6/100=x

 0,126=x

 R--> 0,126 L ou 126 ml

d) 12 -- x(kg)

100 -- 31,25(kg)

31,25.12=100x

375=100x

375/100=x

3,75=x

R--> 3,75kg