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Tju [1.3M]
3 years ago
13

(−12 3/4) ÷ (−5 1/2) in a fraction

Mathematics
1 answer:
storchak [24]3 years ago
5 0
51/22 hope this helps BRAINLIEST??
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an = 2.5n -0.2

Step-by-step explanation:

an = 2.5n -0.2

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30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

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3 years ago
Find x and y when bxby = b8 and b4xb-2y=b2​
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Answer:

x = 1/y

Step-by-step explanation:

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Kalen wrote 60:20 or 3:1 on his paper.what comparison statment would describe the ratios that he wrote?
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3 teddy bears for each cookie he has.

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Answer:

Tables 3 and 5

Step-by-step explanation:

if you know that quadratic equations from curves, then, check out the number patterns on 3 and 5, then, compare them with the others, you'll see

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3 years ago
Read 2 more answers
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