How do you write an equation from a line of best fit on a graph?

22. I = Prt; P What do I first? It says to solve the equation for the given variable.

LuckyWell [14K]

the first thing you need to do is

divide the whole equation by rt as shown below

$\frac{i}{rt} = \frac{prt}{rt}$

then you cancel out. leaving

$\frac{i}{rt} = p$

which is the same as

$p = \frac{i}{rt}$

3 0

3 years ago

Please someone do it for me!

k0ka [10]

We can still use point-slope form on this question (even though others will use the standard form) We plug in the points: (0, -4) and (6, 0)

Remember the format? We can get the slope like this: y1-y2/x1=x2

Them we get -4-0/0-6 = -4/-6= 4/6=2/3

So 2/3 is the slope, and the y-int is -4

so we get y=2/3x-4

3 0

4 years ago

And animals weight change from 12 pounds to 16 pounds what was the percent increase to the nearest whole number

amm1812

That's a 33% increase.

I calculated this using the formula:

$\frac{|n-o|}{o} * 100$

Where n = the new value (16 in your question), o = the old value (12 in your question) and the result is outputted as a percent increase. You can check that this is correct by finding 33% of 12, adding the result to 12, and checking that the result equals your "new" number.

Note that 33% is only an approximation as your question requires a number rounded to the nearest whole.

5 0

3 years ago

Select Correct or Incorrect for each equation. Equation Correct Incorrect

AleksandrR [38]

Answer:

1st equation:

$\frac{-1+1}{-1} = 0\\$

Simplify the numerator

$-1 + 1 = 0$

$\frac{0}{-1} = 0$

(zero divided by any number (other than zero) is zero)

1st equation is correct

2nd equation:

$\frac{-1}{1} = -1$

This is because a negative number divided by a positive number is a negative number.

So, $\frac{-1}{1} = 0$ is incorrect.

2nd equation is incorrect

7 0

2 years ago

What is the answer for 3\5=a+5\25

IceJOKER [234]

Answer:

a = 2/5 = 0.400

Step-by-step explanation:

Step 1 :

1

Simplify —

5

Equation at the end of step 1 :

3 1

— - (a + —) = 0

5 5

Step 2 :

Rewriting the whole as an Equivalent Fraction :

2.1 Adding a fraction to a whole

Rewrite the whole as a fraction using 5 as the denominator :

a a • 5

a = — = —————

1 5

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

a • 5 + 1 5a + 1

————————— = ——————

5 5

Equation at the end of step 2 :

3 (5a + 1)

— - ———————— = 0

5 5

Step 3 :

3

Simplify —

5

Equation at the end of step 3 :

3 (5a + 1)

— - ———————— = 0

5 5

Step 4 :

Adding fractions which have a common denominator :

4.1 Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

3 - ((5a+1)) 2 - 5a

———————————— = ——————

5 5

Equation at the end of step 4 :

2 - 5a

—————— = 0

5

Step 5 :

When a fraction equals zero :

5.1 When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

2-5a

———— • 5 = 0 • 5

5

Now, on the left hand side, the 5 cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

2-5a = 0

Solving a Single Variable Equation :

5.2 Solve : -5a+2 = 0

Subtract 2 from both sides of the equation :

-5a = -2

Multiply both sides of the equation by (-1) : 5a = 2

Divide both sides of the equation by 5:

a = 2/5 = 0.400

One solution was found :

a = 2/5 = 0.400

Processing ends successfully

plz mark me as brailiest :)

4 0

3 years ago

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