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Please help me with the homework
1.120% of a sum of money is R8400.what is the sum of money?
2. 55% of Alice chocolate is sugar. The chocolate bar has a mass of 130g.
How much sugar is contained in this chocolate bar?
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1. Let x be the sum of money (the value under the problem's question, now unknown.
Then 120% of the sum of money is , or 1.2x.
So, you have this equation
1.2x = 8400.
Solve it by dividing both sides by 1.2. You will get
x = = 7000.
ANSWER. The sum of money is R7000.
2. This problem is even simpler than part (1) - - - because in this case you do not need solve any equation.
The statement "55% of Alice chocolate is sugar. The chocolate bar has a mass of 130g" means that
the amount of sugar is 0.55*130 = 71.5 grams.
ANSWER. The amount of sugar is 71.5 grams.
Solved and explained.
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On percentage, see the lessons
- Percentage problems
- Percentage word problems (Type 1 problems, Finding the Part)
- Percentage word problems (Type 2 problems, Finding the Rate)
- Percentage word problems (Type 3 problems, Finding the Base)
- Simple percentage problems
- More complicated percentage problems
- Advanced problems on percentage
- Percentage problems on chains of discounts
- Problems on percentage that lead to unexpected results
- OVERVIEW of lessons on percentage problems
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