Mathematics High School

7 A man has a body mass of m kg. He is 30 kg
heavier than each of his twin children.
Express the body mass of each child in
terins of m. If the mass of the father and
2 children comes to 156 kg, find the mass
of the father.

Answers

Answer 1

Answer:

A man has a body mass of mkg he is 30kg heavier than each of his children. Express the body mass of each child in terms of m if the mass of the father and children sum up to 156kg find the mass of the father

Answer 2

The mass of the father would be 72 kg.

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

A man has a body mass of m kg. He is 30 kg heavier than each of his twin children.

Let the mass of first child be x

x = m - 30

Let the mass of second child be y

y =  m - 30

The total mass of the two children and a father would be

m + x + y = 156

Substitute;

m + m - 30+ m - 30= 156

3m - 60  = 156

3m = 156 + 60

m = 216 / 3

m = 72.

So the mass of the father would be 72 kg.

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Related Questions

given cos A = 0.36, find angle A in degrees. round your answer to the nearest hundredth.

Answers

Answer:

68.9°

Step-by-step explanation:

[tex]cos^{-1}[/tex](0.36) ≈ 68.90

Plz help I don’t understand this question:)

Answers

Answer:

A

Step-by-step explanation:

1/3+1/4
IN FRACTION FORM

Answers

Answer:

7/12

Step-by-step explanation:

Plz mark brainliest :D

Answer:

7/12

Step-by-step explanation:

1

3

+

1

4

=

1

3

+

1

4

=

4

12

+

3

12

=

4+3

12

A hot air balloon is attached to the ground by a cable that is 200 meters long and the cable makes a 57 degree angle. How many meters above the ground is the balloon if there is no slack in the cable?

Answers

Answer:

The balloon is 167.6 meter above the ground if there is no slack in the cable

Step-by-step explanation:

The image for the question is attached. please refer

As we know

sinθ= Perpendicular/ Hypotenuse

Here Perpendicular [tex]= 200[/tex]

Substituting the given values in above equation, we get -

[tex]Sin\Theta = \frac{H}{200}\\H = Sin (57) * 200\\H = 0.838 * 200 \\H = 167.6[/tex]meter

what is 99 + 1 ???????

Answers

Answer: 100

Because 99+1 = 100

100

or if this is a meme its

199

Alvin is 9 years younger than Elga. The sum of their ages is 85. What is Elga's age?

Answers

Elga is 76 years old.

what is the domain and range of {(-5,0), (-8,4), (-4,-4), (1,-5)}?​

Answers

Answer:

All the domains are x values (-8, -4, 1)

All the ranges are y values: (4, -4, -5)

Step-by-step explanation:

An artist spent $75 on supplies to create paintings. Each painting the artist created was sold for $25. Which function can be used to find p, the profit when c paintings are sold?

Answers

Answer:

Step-by-step explanation:

The function can be used to find p, the profit when c paintings are sold is p = 25x - c.

Given that, an artist spent $75 on supplies to create paintings.

What is the function?

Functions are the fundamental part of the calculus in mathematics. The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Let the x be the number of paintings sold.

Now selling price of articles = $25x

Profit (p) = 25x - c

Hence, the function can be used to find p, the profit when c paintings are sold is p = 25x - c.

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A construction worker fills a mold with concrete. This solid figure represents the mold.

What is the volume of the concrete that fills the mold?

Answers

Answer:

volume = 338 x 20 = 6760 cm^3

Step-by-step explanation:

large rectangular top area = 14 x 22 = 308 cm^2

small rectangular top area = 6x5 = 30 cm^2

total top area = 308 + 30 = 338 cm^2

volume = 338 x 20 = 6760 cm^3

Starli makes bead bracelets. She has two bags of
beads. The first bag contains 11 gold, 10 silver,
and 9 brass beads. The second bag contains 7 red,
9 blue, 5 green, a 4 pink beads. What is the
probability that, nout looking, Starli will select
a silver bead from tne first bag and a blue bead
from the second bag?

Answers

Answer:

Could be because in the first bag there is 10 silver and 9 blue,and both have very close numbers.

Step-by-step explanation:

Im not 100% sure but both the blue and silver have almost the same amount of beads. so the probability could be 75%-90% posible.

:/ Again, Im not so sure about this.

Help ASAP thanks........

Answers

The answer is 130 degrees is the answer

compare 1/2 and 1/6 fast
i need help

Answers

Answer:

1/2=3/6 1/6<3/6  

1/6<1/2

Step-by-step explanation:

What is 3 to the third power (4 + 4)

Answers

Answer:

216

Step-by-step explanation:

Answer:

(4+4)= 8 essa é resposta para mim mas não sê si esta certa

Solve this equation: 2x = 5

Answers

Answer:

2.5

Step-by-step explanation:

2x = 5

x = 5/2 = 2.5

I hope im right!!

X = 5/2 or 2.5 that is the answer

Which value for b makes the equation b/4 =12 true?

Answers

48 would be in that place because 12 x 4 would get you to 48, which means that 48 is the answer for this one. Hope this helped. I had to edit the answer out because it glitched, sorry :/

The value for b that makes the equation b/4 = 12 true is b = 48.

We have to find the value for b that makes the equation b/4 = 12 true, we can solve for b by multiplying both sides of the equation by 4.

b is the variable in the equation.

b/4 = 12

Multiply both sides by 4:

4 × (b/4) = 4 × 12

This simplifies to:

b = 48

Therefore, the value for b that makes the equation b/4 = 12 true is b = 48.

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a baker took 9 hours to bake 6 cakes how long does it take him to bake 1 cake?

Answers

Answer:

1.5 hours

Step-by-step explanation:

x +11 -8 ÷ -2

I need help, it's a to step-equation!! ​

Answers

Answer:

x+7 oops x+15 ignore the first answer

Step-by-step explanation:

x+11-8/-2

first do -8/-2=4

so it is x+11+4

11+4

x+15 is the answer

pls brainliest

Are you sure you’re not forgetting something?

Marcus paid 45 cents for 2 pencils. At that rate, what would 8 pencils cost? Ill give BRAINLIEST

Answers

Answer:

$1.8

Step-by-step explanation:

divide .45/2 and get .225

multiply this by 8 and get 1.8

it would cost 1.8n

Answer:

$1.80

Step-by-step explanation:

45/2 = 22.5 cents per pencil

0.225 × 8 = $1.8

Write an inequality for this graph. Please help

Answers

top right is the answerrr have a good dayyy

Write the answer in simplest form.
1/6 / 1/3

Answers

Answer:

1/6 and 1/3 are

already in the simplest form.

can you help with this is it right or wrong

Answers

Answer: Yes, its right.

Step-by-step explanation:

1/2 / 6=  0.08333...

What is the length of a diagonal of a rectangular picture whose sides are 12" x 17" round to the nearest 10th of an inch

Answers

a^2 + b^2 = c^2
12^2 + 17^2 = 485
so c^2=485
so c=22.0 inches

Plsssssss answer its due in 10 minutes , thxxx ! :c

Answers

Answer:

3x, -4, 2x, 6

Step-by-step explanation:

Key:

Red = negative
Long = variables
Green/Yellow = positive


1.) Three long greens = 3x

2.) 6 yellows = 6

3.) 4 red = -4

4.) 2 long reds = -2x


Hope it helped

10 POINTS HELP ASAP!!!

Answers

Answer:

I think it is -7

Step-by-step explanation:

Evaluate the following expression. 4 –1 + 2​

Answers

Answer:

5

Step-by-step explanation:

It’s 3. Kskshvwjqbajssiskdskkbsbsbsdndjsksksmsmssmsmsjsjsms

A supermarket is having its grand opening on Saturday morning. Every fifth
customer will receive a $10 coupon for a free turkey. Every seventh customer
of
will receive a $3 coupon for 2 gallons of ice cream. You are the manager of
the store and you expect 400 customers. How many of each type coupon
should you plan to give away?

Answers

Answer:

Well you expect 400 customers and in every fifith customers you give them a free turkey so you have to divide that then divide figure out how many times you'll give away a coupon so you also divide 400 with 3

OLEASE HELP!!! GIVING BIRRELENTYLIST

Answers

The answer is most likely D.

Explanation:

2.0 is the number 2 as you can see
0.02 can be written as 2%
24/12 is the same as 24 divided by 12 which gives you 2

Hope this helped!

someone help on this please

Answers

Answer:

C, D, F

Step-by-step explanation:

Simply put your equations into a free graphing calculator such as

DESMOS

and it's quite simple!

hope this helps!!

I need help fast


If triangle RST cong triangle XYZ , then ST is congruent to which of the following?

Answers

YZ since they are in the same spot in the cong statement

Can someone help ASAP pls

Answers

Answer:

Step-by-step explanation:

first the answer is most definenetly 130 and 160 and i dont think its 30 so 50.

Other Questions
plzzzz help The Persistent GardenerIt was Jilly's last day in the green house. Summer was coming to an end and so was the growing season. School would be starting next week and the fall plants were well enough along to allow Mrs. T. to manage the greenhouses herself. As Jilly worked the plants for the last time, she tried to focus on the new school year instead of the details of the greenhouse. It had been a hard, hot summer, but Jilly was not ready for it to be over.Jilly moved down the tables, tucking a stray hair behind her ear with a gloved and already dirty hand. She'd repotted the last of the rosemary plants and mixed a new batch of potting soil already. Mrs. T. now had enough potting soil to last her through September. Jilly looked at a couple of maiden-hair ferns that were beginning to yellow in their small pots. She loved their lacey fronds and had grown concerned over the last few days that they needed repotting or a boost of fertilizer. 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