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dolphi86 [110]
2 years ago
8

7,4,5,2x,11, is 15 find the value of x​

Mathematics
1 answer:
sergejj [24]2 years ago
4 0

Answer:

don't understand

but mean = <u>summation x</u>

total number

15=<u>7+4+5+2x+11</u>

5

15=<u>27+2x</u>

5

multiply both sides by 5

15×5=<u>2</u><u>6</u><u>+</u><u>2</u><u>x</u> ×5

5

75=26+2x

75-26=2x

<u>49</u>=<u>2x</u>

2. 2

x= 24.5

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Answer:

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Step-by-step explanation:

1 meter = 100 cm

Area of bathroom = 3.5m x 2.8m = 350x280 = 9800 cm²

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Total number of tiles required = 9800/400 = 245

<u>Note</u>

Strictly speaking we have to find out how many tiles can be fitted in the length and breadth of the bathroom. Since the bathroom is 350 cm wide, we can fit 350/20cm = 17.5 tiles. However, there is no concept of 1/2 tile so the question has an ambiguity. along the width, we can fit 280/10 = 14 tiles

17.5 x 14 = 245 but if the question is reworded to how many tiles do we need to purchase to floor the bathroom it would be 18 x 14 = 252

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2 years ago
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5 0
3 years ago
Read 2 more answers
What is the value of b in the equation (y)*
KonstantinChe [14]

Answer:

b = -6

Step-by-step explanation:

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In this case, \frac{1}{y^{24}}  = y^{-24}

Set that equal to (y^{b})^{4}:

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Apply the exponent rule that (x^{m})^{n} = x^{mn} so now you get:

y^{4b} = y^{-24}

Since the base is y for both sides of the equation, just set the exponents equal to each other and solve for b.

4b = -24

divide each side by 4 to get:

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3 years ago
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abcdefghijklmnopqrstuvwxyz

Step-by-step explanation:

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