I need help. someone help please!

Mathematics

2 answers:

Vikentia [17]3 years ago

4 0

Sorry, I think there is missing context?

yanalaym [24]3 years ago

3 0

Answer:

Step-by-step explanation:

The rule governing the number of magazines sold varies directly with the constant of proportion 10:

10 times the number of students comes out to 100: 10(10) = 100

25 times the number of students comes out to 250: 10(25) = 250

and so on.

In summary: the number of magazines sold is y = 10x, where x is the number of students involved.

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A crew of highway workers paved 1/5 mile in 1/8 hour. If they work at the same rate, how much will they

Elan Coil [88]

Answer:

The easiest approach is to realise that one hour is 3 times longer than 20 minutes. The longer the time, the more they will pave.

215 of a mile, in 20 minutes, how much in 60 minutes?#

They will pave 3 times more.

215×31=615 of a mile

615=25 of a mile

You could also use the 'unitary method' where you find out how much they pave in ONE minute (divide by 20) and them multiply by 60 to find how much in one hour.

Look at what happens:

215÷20×60

=215×120×603

=215×3 ← exactly the same maths.

=25

6 0

3 years ago

If I'm 16 years old, how many months, days, hours, minutes, and seconds old am I?

irakobra [83]

16*12=months
16*365=days
Then take that answer and multiply it by 24 for hours then take that number and multiply it by 60 for minutes and then take that number and multiply it by 60 for seconds.

8 0

2 years ago

13-5m=4-6m show work please

Vesna [10]

First subtract 4 from both sides
$13 - 4 - 5m = - 6m$

then simplify
$9 - 5m = - 6m$

add -5 to both sides
$9 = - m$

since a variable shouldn't be negative the answer should be
$m = - 9$

(I prefer having the variable on the left side)

4 0

2 years ago

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goldfiish [28.3K]

$26-2\left(10-1\right)+\left(3+4\cdot 11\right)$