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harkovskaia [24]
3 years ago
9

Find the value of x when 6-3x= 5x-10x+20

Mathematics
1 answer:
icang [17]3 years ago
5 0

Answer:

7

Step-by-step explanation:

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Find the product and simplify.<br> (k+ 4)(-4k – 5)
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The answer is -4k^2 - 21k - 20! so sorry if I’m wrong but it’s the answer I got :>
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What is the domain and range please?
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The second graph: y = 3
Domain: all real number
Range: y = 3
7 0
3 years ago
What is the sum of 1/4 and 3/8
kupik [55]
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4 0
4 years ago
What is the square root of 1 2/5 ?
Oksi-84 [34.3K]

Answer:

Square root of 1 is 1

Square root of 2 is 1.41421356237 so 1.41

square root of 3 is 1.73205080757 so 1.73

Step-by-step explanation:

5 0
3 years ago
A long distance runner does a first lap around a track in exactly 50 seconds.As she tires.Each subsequent lap takes 20% longer t
madreJ [45]

Answer:

182 seconds

Step-by-step explanation:

Given:

Time taken for first lap is 50 seconds and each subsequent lap takes 20% longer than previous

Solution:

Time taken for first lap = 50 sec

For second lap

Each subsequent lap takes 20% longer than previous

Previous lap time = 50 sec

second lap = 50 + 20% of 50

second lap =50+(\frac{20}{100}\times 50)

second lap = 50 + 10

second lap = 60\ sec

For third lap

Each subsequent lap takes 20% longer than previous

Previous lap time = 60 sec

Third lap = 60 + 20% of 60

Third\ lap = 60 + (\frac{20}{100}\times 60)

Third\ lap = 60+2\times 6

Third\ lap = 60+12

Third\ lap = 72\ sec

Time taken for 3 laps is equal to sum of all three laps time.

Tiem\ taken\ for\ 3\ lap = 50+60+72

Tiem\ taken\ for\ 3\ lap = 182\ sec

Therefore, it takes 182 seconds (3 min, 2 seconds) to run three laps

6 0
4 years ago
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