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3 years ago

Rearrange the equation so xxx is the independent variable.

Mathematics

2 answers:

Keith_Richards [23]3 years ago

8 0

Answer:

No, it's 5x - 26

Step-by-step explanation:

y + 6 = 5(x - 4)

y + 6 = 5x - 20

y = 5x - 26

mr_godi [17]3 years ago

5 0

Answer:

x = (y+26)/5

Step-by-step explanation:

Given the equation y+6=5(x-4), in order to rearrange the equation so x is the independent variable means making x the subject of the formula from the equation.

To do that, we first expand the bracket to have;

y+6 = 5x-20

Taking y+6 to the other side:

0 = 5x-20-y-6

Taking 5x to the other side we have:

-5x = -y-26

Multiplying through by minus

5x = y+26

Dividing both sides by 5

5x/5 = (y+26)/5

x = (y+26)/5

This equation gives the required function

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Sandra's scores on the first 4 tests were 87%, 92%, 76%,and 89%. What is the minimum score she needs to make on the fifth test s

sergejj [24]

Answer:

Sandra need to score at least 56% in her fifth test so that her average is 80%.

Step-by-step explanation:

Given:

First 4 test scores = 87%, 92%, 76%,89%

Average targeted = 80%

We need to find the minimum score she needs to make on fifth test to achieve average of at least 80%.

Solution:

Let the minimum score she needs to make in fifth test be 'x'.

Total number of test = 5

Now we know that;

Average is equal to sum of all the scores in the test divided by number of test.

framing in equation form we get;

$\frac{87+92+76+89+x}{5}=80$

Multiplying both side by 5 we get;

$\frac{344+x}{5}\times 5=80\times 5\\\\344+x=400$

Subtracting both side by 344 we get;

$344+x-344=400-344\\\\x=56\%$

Hence Sandra need to score at least 56% in her fifth test so that her average is 80%.

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3 years ago

Choose the best description for the real number 34 over 3 .

ycow [4]

Answer: the first one is irrational because it is a repeating fraction.

the third is square root of 7 is less than 14/5

the fourth is negative 5 over 6, negative 5, negative 31 over 6, negative square root 26

Step-by-step explanation: Hope this helps !

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love history [14]

Answer:

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Step-by-step explanation:

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xenn [34]

Answer:

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Step-by-step explanation:

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