Helen is currently is 8 years old.
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How to solve world problem ?</h3>
Endeavor to understand the question, analyze it and interpret it into equation.
Given that Helen's age is multiples of 4. Next year it'll be a multiple of 3. Helen's older brother is now 19.
This means Helen current age is multiple of 4 and next year it will be a multiple of 3. Also, Helen's age is less than 19
The two available numbers that fit this analysis and less than 19 are 8 and 9. 8 is multiple of 4. 8 + 1 = 9 which is multiple of 3
Therefore, Helen is 8 years old now
Learn more about Arithmetic here: brainly.com/question/6561461
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Answer:
volume = 381 in°
Step-by-step explanation:
volume = (16 x 7 x 3) + (0.5 x 3 x 5 x 6) = 336 + 45 = 381 in°
Answer:
80% 0.8
Step-by-step explanation:
To find the percentage out of a fraction you would divide 4÷5 to get 0.8, the decimal answer, then to turn that to a percent you would move the point two places to the right to get 80%.
Answer:
Decay
Step-by-step explanation:
Here, we want to know the kind of exponential function that the problem illustrate
From the question, we are told of a depreciation by 30%’per year
what this mean is that it loses its value at a rate of 30% per year
Hence, we can conclude that the change in value in the next year is 30% less than what we had the year before it
So in this instance, we can conclude that what we have is a decay since we are talking about a loss in value
