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Gnesinka [82]
3 years ago
8

Points

Mathematics
1 answer:
Lubov Fominskaja [6]3 years ago
3 0

Answer:

The amount invested at 9% is $30,000

Step-by-step explanation:

Mardi received an inheritance of $40,000.

Let x be the amount invested at 9%.

So, Amount invested at 10% = 40000-x

Her total annual income from the investments was  $3700.

So, 0.09x+0.1(40000-x)=3700

0.09x+4000-0.1x=3700

x=30000

Hence the amount invested at 9% is $30,000

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Step-by-step explanation:

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The ordered pairs in the table below represent a linear function.
Lilit [14]

Answer:

The slope is 2

Step-by-step explanation:

Given

x   y

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Required

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30 Pts
Alona [7]

How to find the percent of change between numbers


First: work out the difference (increase) between the two numbers you are comparing.


Increase = New Number - Original Number


Then:  divide the increase by the original number and multiply the answer by 100.


% increase = Increase ÷ Original Number × 100.


If your answer is a negative number, then this is a percentage decrease.


To calculate percentage decrease:

First: work out the difference (decrease) between the two numbers you are comparing.


Decrease = Original Number - New Number


Then: divide the decrease by the original number and multiply the answer by 100.\


% Decrease = Decrease ÷ Original Number × 100


If your answer is a negative number then this is a percentage increase.


If you wish to calculate the percentage increase or decrease of several numbers then we recommend using the first formula. Positive values indicate a percentage increase whereas negative values indicate percentage decrease.

The answer is 24.22%


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