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Karo-lina-s [1.5K]
3 years ago
10

Compound interest is given by the formula A = P ( 1 + r ) t . Where A is the balance of the account after t years, and P is the

starting principal invested at an annual percentage rate of r , expressed as a decimal. Alex is investing money into a savings account that pays 2% interest compounded annually, and plans to leave it there for 15 years. Determine what Alex needs to deposit now in order to have a balance of at least $40,000 in his savings account after 15 years. Alex will have to invest a minimum of $ now in order to have a balance of at least $40,000 in his savings account after 15 years. Round your answer to the nearest dollar.
Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
8 0

Answer:

I think it is $889, if not than I didn't understand a task

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PLZZZ HELP pictures down below
balu736 [363]

Answer:

C

Step-by-step explanation:

We can multiply each equation by a constant so they'll equal either 15 or -15 since that is the LCM.

Since the answer choices want us to make the top a negative 15, we'll do that.

2x-5y=-21 \\ \\ 3(2x-5y)=(-21)*3 \\ \\ 6x-15y=-63

To make the y's cancel out, the second equation would have to have the y's coefficient equal 15.

Let's do that.

3x-3y=-18 \\ \\ -5(3x-3y)=(-18)*-5 \\ \\ -15x+15y=90

So the resulting equations are answer choice C.

5 0
2 years ago
Find the two numbers whose sum is54 and whose difference is 4
harkovskaia [24]

Answer: I can not see the picture

Step-by-step explanation:

can you show it?

4 0
2 years ago
Read 2 more answers
Wes rode his bike 30 miles in 3 hours. <br><br>What was his average rate of speed?
Valentin [98]
Wes average rate of speed was 10.0 mph
8 0
3 years ago
Read 2 more answers
In a box of 25 external hard disks, there are 2 defectives. An inspector examines 5 of these hard disks. Find the probability th
Salsk061 [2.6K]

Answer:

0.3667 or 36.67%

Step-by-step explanation:

The probability of getting at least 1 defective hard disk among the 5 (P(X>0)) is equal to 100% minus the probability of getting none defectives (1-P(X=0)).

If 23 out of 25 hard disks are non-defective, the probability is:

P(X>0) = 1 -P(X=0)\\P(X>0) = 1 -\frac{23}{25}*\frac{22}{24} *\frac{21}{23} *\frac{20}{22} *\frac{19}{21}\\ P(X>0) = 0.3667=36.67\%

The probability that there is at least 1 defective hard disk is 0.3667 or 36.67%.

8 0
3 years ago
Solve for x and explain the steps:<br> 3x-6=4(2-3x)-8x
mote1985 [20]

Answer: x = 14/23

Step-by-step explanation:

3x-6=4(2-3x)-8x

3x-6=8-12x-8x --> Expand 4(2-3x)

3x-6=8-20x --> Collect like terms

3x-6+6=8-20x+6 --> Add 6 to both sides, to remove it from the right side

3x=-20x+14

3x+20x=-20x+14+20x --> Add 20x to both sides, to remove it from the left side

23x=14

\frac{23x}{23}=\frac{14}{23} --> Divide both sides by 23

x = 14/23

7 0
2 years ago
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