Answer: -4
Step-by-step explanation:
-1.5(4-r)=-12
Divide both sides by -1.5
4-r=8
-r=4
r=-4
Therefore, the value of r is -4
Answer:
b=9
(assuming you meant -6x) x = -2
h = -4
a = 6
Step-by-step explanation:
<h3>
Answer:</h3>
- 3,8 kg
- 750 g
- 7,47 g
<h3>
Step-by-step explanation:</h3><h3>3800 g => kg</h3>
(3800 ÷ 1000) kg
= 3,8 kg
<h3>
¾ kg => g</h3>
(3 ÷ 4)kg × 1000
= 0.75 × 1000
= 750 g
<h3>7470 g => kg</h3>
(7470 ÷ 1000) kg
= 7,47 kg
