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ziro4ka [17]
3 years ago
11

1. When three boys jumped on a weighing scale together, it read 200 kilograms One boy stepped off and it showed 142 kilograms On

e more jupmed off and it showed 72 kilograms What was each boys weight? (explain pls)
Mathematics
2 answers:
Kaylis [27]3 years ago
6 0

Answer:

58, 70, 72

Step-by-step explanation:

200-142=58

142-72=70

Elenna [48]3 years ago
3 0

Answer:

58kg, 70kg and 72kg

Step-by-step explanation:

Starting weight was 200.

Boy 1- Changed from 200 to 142. 200kg - 142kg= 58 kg

Boy 2- Changed from 142 to 72.  142kg- 72kg = 70kg

Boy 3- Last one on the scale and it showed 72kg so his weight is 72kg

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I need to know quick so i would rly apriciate help, if you do a answer and the work ill give u a brainliest!!!
inn [45]

Answer:

6

Step-by-step explanation:

Let the two integers be a and b.

The difference of them is 26. Thus:

a-b=26

One of them (let's use a) is 2 more than 5 times the other. Thus:

a=2+5b

Substitute:

a-b=26\\(2+5b)-b=26

Combine like terms:

4b+2=26

Subtract 2 from both sides:

4b=24

Divide by 4:

b=6

And the second number is:

a-b=26\\a-6=26

Add 6 to both sides:

a=32

So, our two numbers are 32 and 6

And the smaller integer is 6.

And we're done :)

8 0
3 years ago
Read 2 more answers
One number is three times another number. If the sum of the numbers is 36, determine the two
Svetllana [295]

Answer: biggest no.=27. Smallest number=9

Step-by-step explanation:

Let's take the smallest number as x and the biggest number as 3x since it is 3 times bigger than x.

The sum of these two numbers is 36

3x+x=36

4x=36

X( smallest number)=36/4: 9

While, the biggest number is 3x: 3×9=27

5 0
3 years ago
ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ꜱᴜʀꜰᴀᴄᴇ ᴀʀᴇᴀ ᴏꜰ ᴀ ʙᴀꜱᴇʙᴀʟʟ ᴡɪᴛʜ ᴀ 3 ɪɴᴄʜ ᴅɪᴀᴍᴇᴛᴇʀ.
Tems11 [23]

Answer:

As Per Provided Information

We have to use π = 3.14

Diameter of baseball is 3 inch

So, Radius of Baseball will be

  • Radius = Diameter/2

Radius = 3/2 inch

Radius = 1.5 inch

we have been asked to determine the surface area of given baseball .

<u>Using </u><u>Formulae </u>

<u>\boxed {\bf  \: Surface \:  Area_{(Baseball)} \:  = 4 \pi {r}^{2} }</u>

substituting the value and let's solve it

\longrightarrow\tt  \:Surface  \: Area_{(Baseball)} \:  = 4 \times 3.14 \times  {1.5}^{2}  \\  \\  \\ \longrightarrow\tt  \:Surface  \: Area_{(Baseball)} \:  = \: 4 \times 3.14 \times 2.25 \\  \\  \\ \longrightarrow\tt  \:Surface  \: Area_{(Baseball)} \:  = \: 12.56 \times 2.25 \\  \\  \\ \longrightarrow\tt  \:Surface  \: Area_{(Baseball)} \:  = \: 28.26 \:  {inch}^{2}

<u>Therefore</u><u>,</u>

  • <u>Surface</u><u> </u><u>Area </u><u>of</u><u> </u><u>baseball</u><u> </u><u>is </u><u>2</u><u>8</u><u>.</u><u>2</u><u>6</u><u> </u><u> </u><u>sq.</u><u> </u><u>inch</u><u> </u><u>.</u>

So, your answer is 28.26 sq.in

4 0
3 years ago
What is the sales tax of a $178.90 video game system is the tax rate is 3.75%
juin [17]
It would be: 178.90 * 3.75%
= 178.90 * 0.0375
= 6.71

In short, Sales tax would be $6.71

Hope this helps!
3 0
3 years ago
Lin has a drawing with an area of 12 in2. If she increases all the sides by a scale factor of 5, what will the new area be?
Brut [27]
The anwer to ur question is 60 I’m pretty sure because u times the 12 by 5 and get 60
8 0
3 years ago
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