Challenge Three friends started savings accounts at the same time, with the same initial deposit.

Mathematics

2 answers:

Wittaler [7]3 years ago

5 0

Answer: B

Step-by-step explanation:

TiliK225 [7]3 years ago

4 0

Answer:

Step-by-step explanation:

The values given are the change in their account balance. We can identify this by the words "Louise's account shows a total change of," and the other values are also identified as "total change of." From here, we are able to rank the changes of values from least to greatest.

$28.69 < $56.84 < $89.12

The friend with the least change is the friend whose change in account balance was $28.69. This is Franklin. This logic is consistent for the other friends.

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You deposit $2000 in an account earning 4% interest compounded continuously. How much money will you

bazaltina [42]

Answer:

$3,644.24

Step-by-step explanation:

You are going to want to use the continuous compound interest formula, which is shown below.

$A = Pe^{rt}$

P = principal amount

r = interest rate (decimal)

t = time (years)

First change 4% to its decimal form:

4% -> $\frac{4}{100}$ -> 0.04

Next, plug in the values into the equation:

$A=2,000e^{0.04(15)}$

$A=3,644.24$

After 15 years, you will have $3,644.24

5 0

3 years ago

3x-5y=-6 -9x-5y=18 whats the answer

Firlakuza [10]

$\left \{ {{3x-5y=-6\ \ | *3} \atop {-9x-5y=18}} \right. \\\\ \left \{ {{9x-15y=-18} \atop {-9x-5y=18}} \right. \\+----\\add\ both\ equations\\\\
-20y=0\ \ \ | divide\ by \ -20\\\\
y=0\\\\
3x-5y=-6\ \ \ \ add\ 5y\\\\
3x=-6+5y\ \ \ | divide\ by\ 3\\\\
x=\frac{-6+5y}{3}=\frac{-6+0}{3}=-2\\\\ x=-2\\ y=0$