Answer:
25
Step-by-step explanation:
Answer:
B. 0.5*7
Step-by-step explanation:
remember the rule bracket off divide multiply add subtract or BODMAS
80 g........12 g salt
120 g........15 g salt
I. 12/80=0.15=15/100= 15 %
II. 15/120=0,125= 125/1000=12,5 /100=12,5 %
if you werw to mix these solutions
120+80=200 g solutions
12+15=27 g salt
27/200=13,5/100= 13.5 %
Double of 50 is 100, so 28*100=2800, now half of the answer is 2800/2=1400
Hope it helped
Answer:
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