A battery manufacturer wants to test their batteries. They put a battery in a torch, switch on the torch, and see how long the battery lasts.
Explain why testing a 10% sample of their batteries would not be suitable.
…………………………………………………………………………………………… ……………………..
…………………………………………………………………………………………… ……………………..

A flashlight or torch or torchlight is a portable hand-held electric light. Formerly, the light source typically was a miniature incandescent light bulb but these have been displaced by light-emitting diodes (LEDs) since the mid-2000s. A typical flashlight consists of the light source mounted in a reflector, a transparent cover (sometimes combined with a lens) to protect the light source and reflector, a battery, and a switch, all enclosed in a case.

Hope this helps a little.

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: