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Alona [7]
3 years ago
12

PLEASE HEEELP!! I NEED TO HAVE THIS DONE IN 15 MIN!!! BRAINLIEST GET 40 POINTS!!! NO WORK NEEDED!!! JUST ANSWERS!!

Mathematics
2 answers:
Brut [27]3 years ago
6 0

Answer:

1) 29.16

2) 7/2

3) a = 8/25  

4) x = 4/15  

5) d = 23 1/3

Step-by-step explanation:

1) (45+3 3/5 )·0.6 = 48 3/5·0.6  = 29.16

2) (4÷ 4/7) ∙0.3 / (2.88÷4.8)   = (4 ∙7/4)∙0.3 / 0.6  = 7/2

3) 2 1/7 :(15a)= 5/14 :(0.8)

2 1/7 ∙0.8 = 5/14 ∙15a

1 5/7 = 5 5/14 a

1 5/7 : 5 5/14 = a

8/25 = a

4) 3x−1/5 = x+1/3

-1/5 - 1/3 = x - 3x

-8/15 = -2x

-8/15 : -2 = x

4/15 = x

5)(0.3d−1) / (3 1/3)=0.84: 7/15

(0.3d−1) =0.84: 7/15  ∙ 3 1/3

0.3d = 6 + 1

d = 7 :  0.3

d = 23 1/3

Hoochie [10]3 years ago
5 0
1. 29.16
2. 3.5
3. a=0.32
4. 2/15
5. d= 23.33333333 ( am assuming this is a repeating decimal)
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