On the first math test, Keiko answered 19 out of 25 questions correctly. On the second test she got 17 out of 20 correct. On whi
1 answer:
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Answer:
x = 4
Explanation:
Given the expression;
Add 4 to both sides
Square both sides
Hence the value of x is 4
If the population quadruples every period say hour, that means the "rate of growth" is 300%, so whatever the current amount, increased by 3 times as much is 4 times the current amount, or a quadrupled amount.
