Answer:
the first answer is 10
the second answer is 1
Step-by-step explanation:
2+5 = 12
3 + 6 = 21
8 + 11= ?
24 is 60% of the number 40.
To find the number that 24 is 60% of, we can set up a proportion. Let's assume the unknown number is represented by "x". The proportion would be:
24/x = 60/100
To solve for x, we can cross-multiply:
60x = 24(100)
Simplifying the equation:
60x = 2400
Dividing both sides by 60:
x = 2400/60
x = 40
Therefore, 24 is 60% of 40.
To verify this, we can calculate 60% of 40:
60% of 40 = (60/100) (40) = 0.6(40) = 24
So, indeed, 24 is 60% of 40, and our solution is consistent.
To learn more about the percentage;
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Answer:
{-2/7, 2/7}
Step-by-step explanation:
Here you're being asked to solve the given equation 49w^2-4=0 for w with the hint that the solutions are fractions.
49w^2-4=0 is the product of the sum and difference of two squares:
(7w - 2)(7w + 2) = 0
Setting each factor equal to zero and solving for w, we get:
{-2/7, 2/7} as the solutions.