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81% of __= 40.5
__of 3 = 1.8
69% of 30 =
__of 20 = 6.2
59% of __= 23.6
75% of __= 15
56% of__3.92
29% of__=26.1
86% of 10=__
(i need it please) ​


Sagot :

Answer:

Step-by-step explanation:

1. 0.81x=40.5 ; divide both sides by .81 to isolate x

x=50

2. 3x=1.8 ; divide both both sides by 3

x=0.6 ; multiply 100 to get percentage

x=60%

3. 0.69(30)=x

x=20.7

4. 0.59x=23.6 ; divide both sides by 0.59

x=40

5. 0.75x=15 ; divide both sides by 0.75

x=20

6. 0.56x=3.92 ; divide both sides by 0.56

x=7

7. 0.29x=26.1 ; divide both sides by 0.29

x=90

8. 0.86(10)=x

x=8.6