The mean mass of 5 boys is 62 kg. When the mass of a boy is excluded, the mean mass of the remaining 4 boys becomes 64 kg. Find the mass of the boy that has been excluded

Answers

Answer 1

Answer:

54 kg

Step-by-step explanation:

x - regular boy

y - special boy who's weight we're counting

The mean mass of 5 boys:

(4x+y)÷5=62

The mean mass of 4 boys:

4x÷4=64

x=64kg

the mass of y boy:

(4×64+y)÷5=62

(256+y)÷5=62 |×5

256+y=310

y=310-256

y=54


Related Questions

Of 800 people who visited the zoo on Monday 65 percent were children. How many visited the zoo on Monday?

Answers

Answer:

520 are kids and 280 are adults

Step-by-step explanation:

Answer:

[tex]\huge\mathtt{{\colorbox{silver}{ANSWER~~~↴}}}[/tex]

if 800 people visit zoo

64% were children

so = 65/100 ×800

65×8=520

no of children =280

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Which complex number will be located above the real axis and to the left of the imaginary axis?

A.
4i

B.
2 − 4i

C.
4i − 1

D.
-1 − 2i

Answers

Answer:

Yo dum//b butt

Step-by-step explanation:

i added u on snap cause i got a trap phone hehe so please add me backkkkkkkkk thhhhhhaaaaaaaaaaaaaaankkkkkkkkkkkkksssssssssssss

Can someone help me with this question plzzzzz

Answers

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

[tex]7d + d - 4d - 7 = 5d[/tex]

[tex]8d - 4d - 7 = 5d[/tex]

[tex]4d - 7 = 5d[/tex]

[tex]5d = 4d - 7[/tex]

Subtract sides 4d

[tex] - 4d + 5d = - 4d + 4d - 7[/tex]

[tex]d = - 7[/tex]

Thus the correct answer is Option three.

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Please help on question 12 or 13 as soon as possible

Answers

Answer:

to know the summation of angles: (n-2)*180

here (n) represent numbers of sides

12)we have 5 sides (n=5)

(5-2)*180=540

x=540-(105+135+92+87)=121

13)we have 8 sides (n=8)

(8-2)*180=1080

x=1080-(116+158+141+124+136+132+129)=144

I hope it will help

Why do parallel lines never cross?

Answers Are

Answers

Answer:

C. Because they have the same slopes and different y-intercepts

Step-by-step explanation:

Answer:

Your answer would be the 3rd one.

Because they have the same slopes and different y-intercepts.

I hope that this is the answer you were looking for!

Have a great day!

Last month, an airline made 2,905 reservations for flights from Cleveland, Ohio to Newark, New Jersey. After 25 cancellations, there were still 18 full flights. Which airplane made the flights?

Answers

Jdidkdnnx dheisjdnd didn’t disks

Five minus one fourth

Answers

Answer:

can i tell u this story about when i had a dump, so like i just ate chetos so my butt was on fire and their was some fish i saw and i dicided it looked good so i ate it.

Step-by-step explanation:

oh yeah and the answer is 4.75

Answer:

19/4. /means fraction symbol

Step-by-step explanation:

5-1/4

20-1/4

19/4

a worker produced 480 parts over an 8-hour shift. how many parts per hour did the worker produce.

Answers

Answer:

60

Step-by-step explanation:

Ms. Green purchased a new computer for $1,450 at the Apple Store. If sales tax is 9.5%, what was the tax and total of her purchase?

Answers

Tax: $137.75

Total: $1587.75

I hope this helps, and Happy Holidays! :)

9. In the diagram below of rectangle RSTU, diagonals RT and SU intersect
at O. If RT = 6x + 4 and SO = 7x - 6, what is the length of US?

Answers

Your Answer should be 16

Hence, option (2) is correct i.e., the length of the [tex]US[/tex] is [tex]2cm[/tex].

What is the diagonal?

A polygon is defined as a flat or plane, two-dimensional closed shape bounded with straight sides.

A diagonal is a line segment connecting the opposite vertices (or corners) of a polygon. In other words, a diagonal is a line segment connecting two non-adjacent vertices of a polygon.

Here given that,

In the diagram below of rectangle [tex]RSTU[/tex], diagonals [tex]RT[/tex] and [tex]SU[/tex] intersect

at [tex]O[/tex]. If [tex]RT = 6x + 4[/tex] and [tex]SO = 7x - 6[/tex],

[tex]US=SO(2)\\\\US=7x-6(2)\\\\US=14x-12[/tex]

So,

[tex]6x+4=14x-12\\\\4+12=14x-6x\\\\16=8x\\\\x=\frac{!6}{8}\\\\x=2[/tex]

Hence, option (2) is correct i.e., the length of the [tex]US[/tex] is [tex]2cm[/tex].

To know more about the diagonals

https://brainly.com/question/28592115

#SPJ2

Una casa de dos plantas esta construida en un terreno rectangular de 66m² , tal como lo muestra los siguientes pasos si x es el frente de la casa y x+5 el largo. De la ecuacion cuadratica que define el area del terreno es x² + 5x-66=0 ¿Cuanto mide el frente de la casa?

Answers

Answer:

El frente de la casa es 6 metros.

Step-by-step explanation:

El area de la casa está dada por el área de un rectángulo:

[tex]A = f*l = x (x+5) = 66[/tex]

En donde f es el frente = x , l es el largo = x+5 y A es el área = 66m²

Si la ecuación cuadrática que define el área del terreno viene dado por:

[tex] x^{2} + 5x - 66 = 0 [/tex]          

Resolviendo la ecuación cuadrática para x tenemos:

x₁ = -11 y x₂ = 6                                

Tomando el valor positivo, podemos decir que el frente de la casa es 6 metros.

Espero que te sea de utilidad!                              

x^8-x^5+18x^4-18=0 solve this equation

Answers

Answer:

a

Step-by-step explanation:

source: trust me bro

m−2 over 4 =5 over 20

Answers

m=3
Plug it in and it should work
3-2 =1 over 4 which is the same as 5 over 20 because both as a percentage equal 25% or 1/4 or 0.25 if you put it in a calculator as calculators provide decimal answers

What is the solution set to this inequality?
x? - 12x+ 273-8
a
{x|x 3 or x 9)
{x|5SXS7)
{x|x S5 orx27)
{x|3 SXS9)

Answers

It’s 9 hope this helps

Refer to the table to answer the questions.

A 2-column table with 4 rows. Column 1 is labeled Decimal with entries A, B, C, D. Column 2 is labeled Fraction with entries one-half, five-ninths, StartFraction 5 over 90 EndFraction, StartFraction 11 over 20 EndFraction.
Which letter should be replaced with the repeating decimal 0.5?

A
B
C
D

Answers

Answer:

d

Step-by-step explanation:

d should be kept with it

Answer:

The correct answer is the letter D. :)

Step-by-step explanation:

Work out
86
% of
570
kg

Answers

Answer:

The answer would be 490.2 kg because when you're finding the percent of a certain number, you can multiply the number with the percentage. When converting the percentage, you have to move the decimal point 2 times to the left.

Answer:

490.02kg

Step-by-step explanation:

In short-

86%= 86/100

"of" in maths is basically "multiply"

therefore,

86/100 * 570=x

0.86*570=x

x=490.02

There are 123 goldfish in the tank. Goldfish like to swim 12 fish to a family. If 6 of the goldfish died before forming families, how many FULL families will be formed?

Answers

Answer:

Formed will be i think 9, but im not sure.

What is unit rate of 9 cups and 3 batches

Answers

Answer:

3 cups per batch

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

What is 9 divided by 3.... 3 ok so that is your answer. Hope this helped you!! Give brainliest..

Part A: Enter values for the ratio of
y
for the equation y = 2x.
2
х
Y
y
Value of
C
__1
-2
1
2
2
4
Y
Part B: Enter values for the ratio of for the equation y= 2x + 2.

Answers

rawr rawr rawr rawr rawr rawr rawr
Huh better explain please

Refer to the circles to complete the following item.

Does AI = LD?

yes
no​

Answers

Answer:

i believe it’s no. sorry if i’m wrong!

Step-by-step explanation:

no,
it pretty specifically says that AI is 2” while LD is 3”
pretty sure this makes them unequal.

What is the slope of the line with point (3,-5) and (-7,10)?

Answers

Answer:

-3/2

Step-by-step explanation:

10 -(-5)/-7-3

15/-10

-3/2

What is the solution to
2x + 8 < 3x - 4?


A) X < 12
B) X > 12/5
C) X > 12
D) X < 12/5

Answers

Answer:

A

Step-by-step explanation:

Answer:

The answer is choices C.

Step-by-step explanation:

Let's solve your inequality step-by-step.

2x+8<3x−4

Step 1: Subtract 3x from both sides.

2x+8−3x<3x−4−3x

−x+8<−4

Step 2: Subtract 8 from both sides.

−x+8−8<−4−8

−x<−12

Step 3: Divide both sides by -1.

−x/-1<−12/-1

x>12

Match the equation to its description.
y= (x + 4)2 – 2
Right 4, Up 2
Right 4, Down 2
Left 4, Up 2
Left 4, Down 2

Answers

Answer:

i think right 4 up 2!! Sorry if i'm wrong!

hhhhhhheeeeeeeeeeellllllllllllloooooooooooooopppppppppppppppppppppppppppp

Answers

Answer:

nooooooooooo biiiiiiiiiiit.ch

Answer:

c

Step-by-step explanation:

change is rise over run, and 3 is your rise and 2 is your run, so when the line goes up 3, it goes to the right 2 units

Sue juiced oranges from her orange trees. From the first two trees she collected 2/6 gallon of juice from each tree. The last tree yielded 2/3 gallon. After using some of the juice she collected for breakfast, Sue found that she only had 3/4 gallon of juice left. How much juice did she use for breakfast?

Answers

Answer:

Step-by-step explanation:

She collected 2/6 gallon of orange juice from two trees and 2/3 from the last tree.  To add these two fractions, both must have common denominators.

Multiply both the numerator and denominator of 2/3 by 2.  This results in 4/6.

Now you have 4/6 + 2/6 which equals 8/6.  This can be converted to 1 and 2/6, further simplified to 1 and 1/3.  Therefore, Sue collected a total of 1 and 1/3 gallons of orange juice.

amber must make up a vocabulary quiz. she can take it during her lunch or after school on wednesday, thursday, or friday. The tree diagram shows the possible combination of the times she can make up the quiz

Answers

Answer:

6

Step-by-step explanation:

Line z has a slope of 2.5 and goes through points (4,13) . Which equation best represents line z?

A y=2.5x-23
B y=2.5x+23
C y=2.5x+3
D y=2.5x- 28.5

Answers

Answer:

C. y=2.5x+3

Step-by-step explanation:

Help ASAP if you want points and brainliest answer all of them

Answers

Answer:

5. D

3. B

2. C

4. miles per hour 2 1/8, hours per mile 8/17

A business held a job fair for prospective employees. The number of women attending was 10 more than three times the number of men attending. A total of 180 people attended the meeting. Which system of equations could be used to find w, the number of women, and m, the number of men, at this meeting?
1. w = m + 10
w + m = 180

2. w = m + 10, , w + m = 180,
3w + m = 10

3. w + m = 180
3w + m = 10, , w + m = 180,

4. w = 3m + 10
w + m = 180

Answers

Answer:

Step-by-step explanation:

Option 4 is the correct answer

What is the area of square UVWX?
Area= ... square units

Answers

Answer:

16

Step-by-step explanation:

4*4=16

Answer:

let's take the side XW

x =( -4, -4)

w = (-4,-8)

x1= -4 & x2 = -4

y1 = -4 & y2 = -8

using formula

[tex]d = \sqrt{ (x2 -x1) ^{2} + (y1 - y2) ^{2} } \\ = \sqrt[ ]{ (- 4 - ( - 4)) + ( - 4 - ( - 8))} \\ = \sqrt{0 + 4 } \\ = \sqrt{4} = 2sq.unit \: \\ now \: area \: of \: square \: = {side}^{2} \\ so \: = \: {2}^{2} = 4square \: unit \: [/tex]

here we end :P

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