After applying the concept of percentage, the number 40 is approximately 17% of 235.29.
A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the word percent means.
Here we have to find the number which 17% is 40.
Assume the number we're looking for is 'x'.
Since 17 percent can also be written in decimal form as 0.17
Set up the equation:
0.17 x = 40
To isolate 'x', Divide both sides of the equation by 0.17:
x = 40 / 0.17
Simplifying the right side of the equation, we have:
x ≈ 235.29.
Hence,
40 is approximately 17 percent of 235.29.
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What error did Barbara make in writing the equation?
Barbara's equation did not consider the number of water drinks.
Barbara's equation did not consider the number of iced tea drinks.
Barbara's equation did not use the correct price for the iced tea drinks.
Barbara's equation did not use the correct total for sales.
-2x + 7x + 34 = -2(1 - 7x)
Answer:x=4
Isolate the variable by dividing each side by factors that don't contain the variable.
Answer:
The numbers of boys in one grade are 60 .
Step-by-step explanation:
As given
In one grade of 150 students .
The ratio of boys to girls is 2:3.
Let us assume that the scalar multiple of boys and girls be x.
Thus number of boys = 2x
Number of girls = 3x
Than the equations becomes
2x + 3x = 150
5x = 150
x = 30
Thus number of boys = 2 × 30
= 60
Therefore the numbers of boys in one grade are 60 .