Question

Va rog sa ma ajutati​

Answer 1

Răspuns:

1-a.)

$0.7x = 1.05 \times 2.8$

$0.7x = 4.2$

$x = 6$

b.)

$2.1x = 14 \times 0.54$

$2.1x = 7.56$

$x = 3.6$

c.)

$1.5x = 0.42 \times 35$

$1.5x = 14.7$

$x = 9.8$

2-a.)

$10x = 13 \times 4$

$10x = 52 \\ x = 5.2$

b.)

$20x = 12 \times 7 \\ 20x = 84 \\ x = 4.2$

c.)

$30x = 25 \times 9 \\ 30x = 225 \\x = 7.5$