Answer:
He has two brothers.
Step-by-step explanation:
He gave each brother the same number of toys.
12/6 = 2, so two brothers
The ratio is 420:700 .
W can simplify this by dividing each number by the GCF which is 140
420:720 = 420/149 : 700 / 140 = 3:5 Answer
Answer: 30 dollars in total
Step-by-step explanation: first multiply 15 times 0.75 which is 11.25 then multiply 15 times 1.25 which is 18.75 if you add these two numbers together you get 30 dollars which is the total amount spent.
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Answer:
a) x = 3
b) x = 10
c) x = 28
Explanation:
a)

collect term

simplify

divide both both sides by 6

b)

distribute

collect terms

combine

divide both sides by 15

c)

collect like terms

combine

cross multiply

simplify

Answer:
621.5%
Step-by-step explanation:
To convert 6.215 to a percent, multiply 6.215 by 100%: 6.215(100%) = 621.5%