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Rasek [7]
3 years ago
8

49 percent of all people who buy running shoes don't run at all Assuming 340,000 people but running shoes how many will use them

to run in ?
Mathematics
2 answers:
Goryan [66]3 years ago
8 0
173, 400

49% of people do not run; thus, 51 percent of people do.

51% * 340,000 = 173, 400
xxTIMURxx [149]3 years ago
5 0
173,400 people will run in them.
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X^2=4x-15 solve with Quadratic formula
bulgar [2K]

Answer:

x=2+i\sqrt{11}

x=2-i\sqrt{11}

Step-by-step explanation:

we have

x^{2} =4x-15 -------> x^{2}-4x+15=0

we know that

The formula to solve a quadratic equation of the form ax^{2} +bx+c=0 is equal to

x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}

in this problem we have

x^{2}-4x+15=0

so

a=1\\b=-4\\c=15

substitute in the formula

x=\frac{-(-4)(+/-)\sqrt{-4^{2}-4(1)(15)}} {2(1)}

x=\frac{4(+/-)\sqrt{16-60}} {2}

Remember that

i=\sqrt{-1}

x=\frac{4(+/-)\sqrt{-44}} {2}

x=\frac{4(+/-)2i\sqrt{11}} {2}

x=\frac{4(+)2i\sqrt{11}}{2}=2+i\sqrt{11}

x=\frac{4(-)2i\sqrt{11}}{2}=2-i\sqrt{11}

7 0
3 years ago
Three times the square of a number if five less than sixteen times the number. What is the number?
expeople1 [14]
X - the number

3x^2=16x-5 \\
3x^2-16x+5=0 \\
3x^2-15x-x+5=0 \\
3x(x-5)-1(x-5)=0 \\
(3x-1)(x-5)=0 \\
3x-1=0 \ \lor \ x-5=0 \\
3x=1 \ \lor \ x=5 \\
x=\frac{1}{3} \ \lor \ x=5

The number is 1/3 or 5.
5 0
3 years ago
Read 2 more answers
A bag contains 144 marbles. Some are red and the rest are black.There are 11 red marbles for every black marble.How many red mar
wolverine [178]

Answer:

There are 132 red marbles and 12 black marbles

Work:

I made a ratio of 11:1 and multiplied both sides by 12 which gave me 132:12

132+12=144


3 0
3 years ago
U=kvw/x for x<br> how do you solve this?
ratelena [41]

Answer:

idk like f.r.

Step-by-step explanation:

n / 1a

3 0
3 years ago
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What is the volume of the rectangular Prism w=9.6 l=5 h=7
Inga [223]
Hello :)

The equation to volume of a rectangular prism is:

V=lwh

So, let's plug in the values and solve:

V=5×9.6×7

Answer: 336

Hope this helps and have a great day :D
5 0
3 years ago
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