Question

Urgent !
8.Determinati x din :
a) x + 250 cm² = 15 m²
b) 4211000 mm² + x = 9 m²
c) 2 × x + 3 m² = 2,03 dam²
d) 64000 cm² : x = 8 m²
e) 1700 m² + x = 29 dam²
f) 0,5 km² - x = 4500 dam²

Answer 1

a) x + 250 cm² = 15 m²
x+0,025m²=15m²
x=15m²-0,025m²
x=14,975m²

b) 4211000 mm² + x = 9 m²
4,211m²+x=9m²
x=9m²-4,211m²
x=4,789m²

c) 2 × x + 3 m² = 2,03 dam²
2x+0,03dam²=2,03dam²
2x=2,03dam²-0,03dam
2x=2dam²
x=2/2
x=1dam²

d) 64000 cm² : x = 8 m²
6,4m²:x=8m²
x=6,4m²:8m²
x=0,8m²

e) 1700 m² + x = 29 dam²
17dam²+x=29dam²
x=29dam²-17dam²
x=12dam²

f) 0,5 km² - x = 4500 dam²
5000dam²-x=4500dam²
x=5000dam²-4500dam²
x=500dam²