Question

A drilling machine can drill 12 holes in 6 minutes. If the machine drills holes at a constant speed, it can drill ______ holes in 25 minutes.

Answer 1

@Directrix

Answer 2

If the drill drills 12 holes in 6 minutes how many holes can it drill in one minute?

Answer 3

2 ?

Answer 4

brills got it

Answer 5

Yup because 12 divided by 6 is 2
So if it drills 2 holes a minute and there are 25 minutes how many holes would it drill?

Answer 6

uh 125?

Answer 7

he left me .

Answer 8

Well not quite
So if it drills 2 holes in 1 minute and you want how many holes in 25 mins right?
Thats just\[\frac{ 2 }{ 1 }=\frac{ x }{ 25 }\]Where x is the number of holes

Answer 9

use the rule of 3 simple

12 holes --- 6 minutes

x holes ---- 25 minutes
----------------------

x = 25*12/6 = ?

Answer 10

300?

Answer 11

why 300 ? 12/6=2 and 2*25 = ?

Answer 12

oh i did 2 times 25 pff

Answer 13

but you divide right?

Answer 14

Well look at my equation @ggdvaaa if you simplify it you get\[2=\frac{ x }{ 25 }\] how would you solve that?

Answer 15

x is 6? im sorry im slow tbh

Answer 16

How would you get the x by itself?

Answer 17

im not sure.

Answer 18

i guessed

Answer 19

You multiply both sides by 25 right?
Because that eliminates the 25 under the x
So what would x=?

Answer 20

both sides of

Answer 21

both sides of the equation
So you would do\[25 \times 2=25 \times \frac{ x }{ 25 }\]
What would that be?