The answer is unreasonable because the value of x is between 2 and 3.The error is : she did not introducing logs in solving the equation.
Step-by-step explanation:
The question is 
Here answers is unreasonable because, she can test with powers of seven like;
7²=49
7³=343
So this means the value of x lies between 2 and 3, so here answer 11.71 is unreasonable
b) In this case, to solve the equation, introduce logs both sides


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Keywords :Equation, error
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Answer:
C. 6.68
Step-by-step explanation:
One grapefruit is 0.98 so we know so we multiply by 7 and get 6.86
hope this helped
Answer:
15 % are running for a cause.
Step-by-step explanation:
120 out of 800 are running for a cause.
So out of 100, 120 / 8
= 15 are running for a cause.
15 out of a 100 = 15%.
(3/4)x+(3/2)x=9/4
(3/4)x+(3.2/2.2)x=9/4
(3/4)x+(6/4)x=9/4
3x+6x=9
9x=9
x=1