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3 years ago

15

Q8 Q21.) Find the amount invested at each rate.

2 answers:

Pavlova-9 [17]3 years ago

5 0

See the attached picture:

6% = 1200
9% = 2400
12% = 3800

nignag [31]3 years ago

4 0

Let x, y, z be the amount at 6%, 9% n 12%

x+y+z = 7400
z-x-y = 200
2z = 7400+200 = 7600
z = 3800

@12%, 3800 gives 3800*0.12=456 income
0.06x+0.09y+456=744
0.06x+0.09y=288
6x+9y=28800

x+y+3800=7400
y=3600-x

6x+9(3600-x)=28800
9x-6x=9*3600-28800=3600
x=1200

y=3600-1200
=2400

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Setler79 [48]

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Step-by-step explanation:

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3 0

3 years ago

Use completing the square to determine which of the following gives the solutions to 3x2 - 24x + 40 = 28.

jeka94

Answer:

$x=4+2\sqrt{3}$

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Step-by-step explanation:

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2 years ago

Use the formula to solve the problems.

Ber [7]

Answer:

$4,309.12

Step-by-step explanation:

The computation of the interest earned is given below:

But before that the amount would be

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3 0

3 years ago

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ki77a [65]

Answer:wym

Step-by-step explanation:

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3 years ago

Read 2 more answers

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Zielflug [23.3K]

Answer:

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Step-by-step explanation:

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<em>Hope this helps!!</em>

7 0

3 years ago