63/0.9 = 70
Therefore, 63 is 90 percent of 70.
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Oh, dude, math time! So, if 63 is 70% of a number, we can set up the equation 0.70x = 63. Then you just divide 63 by 0.70 to find the number. It's like solving a mystery, but with numbers instead of clues!
To find the total number of students, you can set up a proportion: 63 is 70% of x. This can be represented as 63 = 0.70x. To solve for x, divide both sides by 0.70, which gives you x = 63 / 0.70. Therefore, the total number of students is 90.
-30%
To find 20 percent of a number, multiply the number by 0.2. In this instance, 0.2 x 90 = 18. Therefore, 20 percent of 90 is equal to 18.
To find 90 percent of a number, multiply the number by 0.9. In this instance, 0.9 x 1100 = 990. Therefore, 90 percent of 1100