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larisa86 [58]
3 years ago
10

I need this solved step by step

Mathematics
1 answer:
mars1129 [50]3 years ago
4 0
4-9i÷-6i times both sides by 6i
6i(4-9i)÷6i(6i)
24i-54i²÷-36i²
24i-54(-1)÷-36(-1)
54+24i÷36 now reduce 
9+4i÷6
I hope this helps!!

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Three million and nine thounsandths
nika2105 [10]
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5 0
3 years ago
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the runner's time to complete the marathon is 45 minutes. The time to complete the last marathon was 49.5 minutes. What is the p
Lana71 [14]

Answer:

9.09%

Step-by-step explanation:

To find percent decrease you have to use this equation:

Percent Decrease = \frac{Initial -New}{Initial} x 100

Initial = 49.5

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Plug in and solve:

PD = \frac{49.5-45}{49.5} x 100\\\\PD = \frac{4.5}{49.5} x 100 \\\\PD = 0.0909 x 100\\\\PD = 9.09

The percent decrease is 9.09%

<em>Hope this helps!!</em>

<em>- Kay :)</em>

6 0
3 years ago
Evaluate the expression for the given value of the variable 5 ×(h+3) for h=7
Bad White [126]

Answer:

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Step-by-step explanation:

Put h = 7 to the expression 5 · (h + 3):

5\cdot(7+3)=5\cdot10=50

5 0
2 years ago
The product of and a number plus 17 is 5​
swat32

Answer:

-12

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aksik [14]

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