1. Tentukanlah 25% + 0.7 - 2/3 = .... 2. Jika pq = 3p + q ; maka 7 -5 = .....

Question

Matematika Diposting : 2017-10-10 Diupdate : 2017-10-12 Hilmi2017

Pertanyaan

1. Tentukanlah 25% + 0.7 - 2/3 = ....
2. Jika p*q = 3p + q ; maka 7* -5 = .....

Answer 1

1.
25% + 0,7 - 2/3
= 25/100 + 7/10 - 2/3
= 1/4 + 7/10 -2/3
= 15/60 + 42/60 - 40/60
= 17/60

2.
p*q = 3p + q
7*(-5) = 3(7) + (-5) = 21 - 5 = 16