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Minchanka [31]
2 years ago
10

Trevor is saving for a down payment to buy a house. The account earns 11.2% interest compounded monthly, and he wants to have $1

4,000 in 7 years.
What must his principal be? Round your answer to the nearest cent and do not include the dollar sign. Do not round at any other point in the solving process; only round your answer.
Mathematics
1 answer:
Anna71 [15]2 years ago
7 0

$1271.22

Step-by-step explanation:

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3 0
3 years ago
Ray industries bought a touchscreen monitor for $1200 it is expected to depreciate at a rate of 25% per year what was the value
max2010maxim [7]

So for this problem, we will be using the exponential equation format, which is y = ab^x. The a variable is the initial value, and the b variable is the growth/decay.

Since our touchscreen starts off at a value of 1200, that will be our a variable.

Since the touchscreen is decaying in value by 25%, subtract 0.25 (25% in decimal form) from 1 to get 0.75. 0.75 is going to be your b variable.

In this case, time is our independent variable. Since we want to know the value 3 years from now, 3 is the x variable.

Using our info above, we can solve for y, which is the cost after x years.

y=1200*0.75^3\\y=506

In context, after 3 years the touchscreen will only be worth $506.

7 0
3 years ago
Find the unit vector in the direction of the vector: w=3i-4j. Write the answer in component form.
WARRIOR [948]

Answer: c

Step-by-step explanation:

Yea

3 0
3 years ago
The sum of three numbers is 8. twice the smaller is 2 less than the largest, while the sum of the largest and smallest is 5. use
Lorico [155]
X + Y + Z = 8
2x = Z - 2
X + Z = 5
X = 1
1 + Y + Z = 8
Y + Z = 6
1 + Z = 5
Z = 4
1 + Y + 4 = 8
5 + Y = 8
Y = 3
The variables are 1, 3, 4.
4 0
3 years ago
Which of the following situations can be modeled by the expression -4 + (-7)?
cupoosta [38]

Third option: Elsa lost four points on the last math quiz, and Marc lost seven points. How many total points did they lose?

5 0
3 years ago
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