Answer:
B. 10 months
Step-by-step explanation:
The balance on the loan will be ...
b = 1600 - 80t . . . . . . where t is the number of months of payments
The balance in the savings account will be ...
s = 500 + 25t
The savings account balance will be at least as much as the loan balance when ...
s ≥ b
500 +25t ≥ 1600 -80t . . . substitute the account balance expressions
105t ≥ 1100 . . . . . . . . . . . . add 80t -500
t ≥ 1100/105 ≈ 10.48 ≈ 10
It will take Josh 10 months to have enough savings to pay the loan in full.
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<em>Comment on rounding</em>
IMO, it makes no sense to round down, as Josh will NOT have enough in 10 months. He will have enough after he makes one more payment of $80. At 10 months, the loan balance is $50 more than the savings balance. It will be 11 months before there is enough savings to pay off the loan.
Answer:
17 pints
Step-by-step explanation:
1 pint is 16 plus another quarter equals 20, 20 - 17 = 3 or 20 - 3 = 17
"nine times out of ten" means we have 9/10 = 0.90 = 90% confidence interval.
The center of each interval is 0.80 as this is the mean test score. The margin of error is 0.06 from the statement "within 6% of...". Put another way, the teacher is basically saying that they are 90% confident to find a test score between 74% and 86%
This is because
0.8 - 0.06 = 0.74
0.8 + 0.06 = 0.86
So that's why the confidence interval is (0.74, 0.86)
Steps?
A graph shows zeros to be ±3. Factoring those out leaves the quadratic
(x-2)² +1
which has complex roots 2±i.
The function has roots -3, 3, 2-i, 2+i.
Answer:
False
Step-by-step explanation:
The given statement is false. The histograms or bar charts are used when one is given discrete data for a certain value or the interval of a certain range but for the continuous data plotting, we need continuous frequency curves line graphs. Since the ALT levels fall on a continuum, representing them on a bar chart will not make any sense. they should be plotted on some continuous curve distribution lines like smoot line graphs (curves).
