Solve for x. Round answer to the nearest tenth. 17 54° х

10,483 people attended a rock festival. If there were 811 more boys than girls, and 2,481 fewer adults over 50 years of age than

Maslowich

Given =

total people attented a rock festival = 10483

number of boys more than girls in the rock festival = 811

fewer adult over 50 year of age = 2481

find out the each group attented the festival

To proof =

let us assume that the number of the girls be x.

let us assume that the number of the boys be y.

let us assume that the number of the adults be z.

thus we have equation

x + y + z = 10483

number of boys (y) = x + 811

number of adults (z) = x - 2481

put these all value inthe equation x + y +z = 10483

we get

x + x + 811 + x - 2481 =10483

3x -1670 = 10483

3x = 12153

x = 4051

the number of girls are 4051

the number of boys = 4051+ 811

i.ethe number of boys are 4862

the number of adults = 4051 - 2481

i.e number of adults are 1570.

Hence proved

7 0

4 years ago

Please help if you know the answer please!

quester [9]

36 I believe.....................

7 0

3 years ago

Read 2 more answers

The weights of certain machine components are normally distributed with a mean of 8.5 g and a standard deviation of 0.09 g. Find

stiks02 [169]

To solve this problem,lets say that

X = the weight of the machine components. 
X is normally distributed with mean=8.5 and sd=0.09

We need to find x1 and x2 such that
P(X<x1)=0.03 and P(X>x2)=0.03

Standardizing:

P( Z< (x1 - 8.5)/0.09 ) =0.03
P(Z > (x2 - 8.5)/0.09 ) =0.03.

From the Z standard table, we can see that approximately P = 0.03 is achieved when Z equals to:

z = -1.88 and z= 1.88

Therefore,

P(Z<-1.88)=0.03 and P(Z>1.88)=0.03 

So,

(x1 - 8.5)/0.09 = -1.88 and
(x2 - 8.5)/0.09 =1.88

Solving for x1 and x2:

x1=-1.88(0.09) + 8.5 and
x2=1.88(0.09) + 8.5

Which yields:

x1 = 8.33 g
x2 = 8.67 g

Answer: The bottom 3 is separated by the weight 8.33 g and the top 3 by the weight 8.67 g.

8 0

4 years ago

Please help, this is my last question then I'm done school for the year! This will give you 50 points plus ill give you brainlie

blagie [28]

Answers:

Internal height is approximately 28.5714285714286 cm

Internal surface area is roughly 9628.57142857143 square cm

Round the values however you need to

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Work Shown:

1 L = 1000 mL

1 L = 1000 cm^3

60 L = 60,000 cm^3 (multiply both sides by 60)

The cooler has volume of 60,000 cubic cm. Let V = 60000

Assuming the cooler is a rectangular prism (aka a block), then we can say

volume = length*width*height

V = L*W*H

60000 = 60*35*H

60000 = 2100H

2100H = 60000

H = 60000/2100

H = 28.5714285714286 which is approximate

And the surface area (SA) is

SA = 2*(LW + LH + WH)

SA = 2*(60*35 + 60*28.5714285714286 + 35*28.5714285714286)

SA = 9628.57142857143 which is also approximate

Units for the surface area are in square centimeters.

7 0

4 years ago

The question is 3 marks

FromTheMoon [43]

Pls you choose the company...

3 0

4 years ago