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tatyana61 [14]
2 years ago
12

1. Solve for x: x/12 + 15 = 648

Mathematics
1 answer:
Vesnalui [34]2 years ago
6 0

Answer:

1. x = 7596

2. x = -6.25

3. x = 8.5  

hope this helps:)

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Decrease £16855.21 by 13.5%<br> Give your answer rounded to 2 DP.
Savatey [412]

Answer:

<h2>£ 14,579.75</h2><h2 />

Step-by-step explanation:

= £16855.21  -  ( £16855.21 x <u>13.5% )</u>

                                                 100

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astraxan [27]

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y=3(x-2)^2-5

Step-by-step explanation:

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2 years ago
One number is 8 times a first number. a third number is 100 more than the first number. If the sum of the three numbers is 420,
Alex17521 [72]

Answer:

(use algebra) 1st no. is a,2nd no. is 8 times the 1st which is 8a, 3rd no. 100 more than 1st which is a+100

total is 420, thus a+8a+a+100=420

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10a=320 hence 32

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6 0
3 years ago
The area of a circle is 9pi cm². Find its radius. <br>Please do this question with full solution:)​
kirill115 [55]

Answer:

3 cm

Step-by-step explanation:

The formula for the area of a circle is:

A = \pi r^2

Where "r" represents the radius of the circle. We can substitute the given value for Area into the equation to solve for the radius.

<h3>Solve for Radius</h3>

A=\pi r^2\\9\pi = \pi r^2

Divide both sides by π

9=r^2

Take the square root of both sides

\sqrt9=\sqrt {r^2}\\r=3

The radius of the circle is 3 cm.

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Fynjy0 [20]
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