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enot [183]
3 years ago
11

a new bike has been marked up by 25% and is now selling for $210.00. How much was the bike before the mark-up

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
3 0
Divide by 1.25 to get $168
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The figure shows a cylinder of diameter 12cm and height = 15cm. A hole in the shape of cone is bored into one of its end. If the
Lisa [10]

Answer:

\bold{495\pi} \approx \bold{1555.088 cm^3}

Step-by-step explanation:

There was no figure but the question is clear

Volume of a cylinder is given by the formula \bold{\pi r^2h}\\

where r is radius of base of cylinder, h is the height

Volume of a cone is given by \bold{\frac{1}{3} \pi r^2 h}

where r is the radius of base of cone, h is the height

The radius of the cylinder = \frac{1}{2}(diameter) = \frac{1}{2}(12) = 6cm

Height of cylinder = 15cm

Volume of cylinder V_{cyl} = \pi (6)^2  15 = \pi (36)15 = \bold{540\pi}

Radius of cone = \frac{1}{2} (radius of cylinder) = \frac{1}{2}(6) = 3 cm

Height of cone same as height of cylinder = 15cm

Volume of cone, V_{cone} = \frac{1}{3}\pi r^2 h = \frac{1}{3}\pi (3)^2 15 =  \frac{1}{3}(9)15\pi = \bold{45\pi}\\


Difference is the volume of the remaining solid

V_{cyl} - V_{cone} = 540\pi - 45\pi = \bold{495\pi} \approx \bold{1555.088 cm^3}



5 0
2 years ago
Answer please!!!<br> Order these from least to greatest: <br> -2/5, -0.35, -5/8, -0.375
horrorfan [7]
58, -25, -0.375, -0.35

5 0
3 years ago
Read 2 more answers
The ratio of men to women at a meeting is 7:6.If there are 28 men at the meeting;
yanalaym [24]

Answer:

a. 24 woman

b. 28 men and 24 women

Step-by-step explanation:

a.

given: men to women = 7:6

find: number of women

solution: 28 / 7 = 4, 4 * 6 = 24 women

b.

given: number of men

find: number of men and women

solution: 28 men and 24 women

<em>hope this helps....</em>

8 0
3 years ago
Read 2 more answers
The width of a rectangle is 4 inches less than the length. The perimeter is 60 inches. Find the length and the
coldgirl [10]

Answer:

Length=17

width=13

Step-by-step explanation:

W=width

L=length

Perimeter = 2w+2l since it's a rectangle

W=l-4 (given)

Plug into perimeter equation

Perimeter =(2l-8)+2l

=4l-8

60=4l-8

68=4l

17 =l

W=l-4=17-4=13

6 0
3 years ago
Bananas cost $0.69 per pound. Which equation can be used to model the total cost, C, in dollars, of ,p, pounds of bananas
FromTheMoon [43]
The correct answer would be A. C = 0.69p. 
This is the correct answer because the total cost of the bananas should equal 0.69 times each pound bought.
Hope this helped!
3 0
4 years ago
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