\boxed{NN=50-ND} \\ \\ \\ 90-2ND=50-ND \\ -2ND+ND=50-90 \\ -ND=-40 \\ \\ \boxed{ND=40} \\ \\ NN=50-ND \\ NN=50-40 \\ \\ \boxed{NN=10}"> 5 NN + 10 N D = 450 5 ( NN + 2 N D ) = 450 NN + 2 N D = 90 NN = 90 − 2 N D NN + N D = 50 => NN = 50 − N D 90 − 2 N D = 50 − N D − 2 N D + N D = 50 − 90 − N D = − 40 N D = 40 NN = 50 − N D NN = 50 − 40 NN = 10
By using elimination on the equations NN + N D = 50 and 5 NN + 10 N D = 450 , we found that N D = 40 and NN = 10 . The solution is NN = 10 and N D = 40 .
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Jawaban:The basic tools commonly used in hairdressing:Scissors – For cutting and trimming hair preciselyCombs – Different types for sectioning, detangling, and styling.Hairbrushes – For smoothing, detangling, and styling hair.Hairdryer – To dry and style hair quickly using heat.Clippers – For cutting hair close to the scalp, often used in men's cuts.Razors – For texturizing and thinning hair.Sectioning Clips – To hold hair sections apart during cutting or styling.Curling Irons/Wands – To create curls or waves.Flat Irons (Hair Straighteners) – To straighten hair or create sleek styles.Spray Bottles – Filled with water to dampen hair for cutting or styling.Cape and Towels – To protect the client’s clothes and keep hair off their neck.Hair Color Tools – Bowls, brushes, foils for applying dye or highlights.