Write an expression that is equivalent to: -1/2(10 + 1/4)
1 answer:
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Answer:
At 5% amount invested = $7,500
At 7% amount invested = $3,500
Step-by-step explanation:
We shall create an equation for this.
Let the amount invested with 5 % interest = "x"
Then remaining amount = 11,000 - x, Since total amount invested = $11,000
(x 5%) + ((11,000-x)
7%) = $620
0.05 x + 770 - 0.07 x = 620
770 - 620 = 0.07 x - 0.05 x
150 = 0.02 x
= x
$7,500 = x
Therefore, amount invested at 5% = $7,500
At 7% = $11,000 - $7,500 = $3,500
Answer:
Step-by-step explanation:
Given
Required
Determine the average rate of change over [2,7]
This is calculated as:
In this case:
and
So, we have:
From the table:
f(7) = 1.91
f(2) = 1.26