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qaws [65]
3 years ago
11

The sum of a number and 6% of itself is 42.4. find the number

Mathematics
2 answers:
kvasek [131]3 years ago
8 0

Answer:

40

Step-by-step explanation:

6% of number = 6/100 × x = 6x/100 = 3x/50

Sum of the number and 6% of itself = 42.4

x + (3x/50) = 42.4

(50x+3x)/50 = 42.4

53x = 42.4 × 50

53x = 2120

x = 2120/53

x = 40


FromTheMoon [43]3 years ago
6 0

Answer:

The answer is  x = 40

Step-by-step explanation:

6% of a number is 6/100 * x

Of means multiply.

so 6% of x =    6/100 * x =    6 * x / 100 =    0.06x

Now just put these two together.

x + 0.06x = 42.4    Combine the left

1.06x = 42.4           Divide by 1.06

x = 42.4 / 1.06

x = 40

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