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2 years ago

X(4-k)=p solve for k

Mathematics

2 answers:

kirill [66]2 years ago

6 0

Answer:

$k=4-p\frac{p}{x}$

Step-by-step explanation:

Given : Expression $x(4-k)=p$

To find : Solve for k?

Solution :

Step 1 - Write the expression,

$x(4-k)=p$

Step 2 - Divide by x both side,

$\frac{x(4-k)}{x}=\frac{p}{x}$

$4-k=p\frac{p}{x}$

Step 3 - Taking k to one side,

$k=4-p\frac{p}{x}$

Therefore, $k=4-p\frac{p}{x}$

den301095 [7]2 years ago

4 0

x(4-k)=p
[x(4-k)=p]/x

4-k=p/x
-4 = -4
-k=p/x-4
k=4-p/x

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The equation A(t) = 900(0.85)t represents the value of a motor scooter t years after it was purchased. Which statements are also

ValentinkaMS [17]

Answer:

When new, the scooter cost $900

Step-by-step explanation:

The complete question in the attached figure

we have

$A(t)=900(0.85)^t$

This is a exponential function of the form

$A(t)=a(b)^t$

where

A(t) ----> represent the value of a motor scooter

t ----> the number of years after it was purchased

a ---> represent the initial value or y-intercept

b is the base of the exponential function

r is the percent rate of change

b=(1+r)

In this problem we have

$a=\$900\\b=0.85$

The base b is less than 1

That means ----> is a exponential decay function (is a decreasing function)

Find the percent rate of change

$b=(1+r)\\0.85=1+r\\r=0.85-1\\r=-0.15$

Convert to percentage (multiply by 100)

$r=-15\%$ ---> negative means is a decreasing function

Verify each statements

case A) When new, the scooter cost $765.

The statement is false

Because the original value of the scooter was $900

case B) When new, the scooter cost $900

The statement is true (see the explanation)

case C) The scooter’s value is decreasing at a rate of 85% each year

The statement is false

Because the scooter’s value is decreasing at a rate of 15% each year (see the explanation)

case D) The scooter’s value is decreasing at a rate of 0.15% each year

The statement is false

Because the scooter’s value is decreasing at a rate of 15% each year (see the explanation)

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2 years ago

Jung-Soon has $25 to spend on prizes for a game at the school fair. Lip balm costs $1.25 each, and

Dvinal [7]

Answer:

1.25x + 1.5y=25

Step-by-step explanation:

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1 year ago

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GarryVolchara [31]

Answer:

Option A , C and D are correct.

Step-by-step explanation:

Double Facts states that the additions in which a number is added to itself.

then; by definition of double facts

Use Double facts to find the sum of 3 + 2

3 + 2

=3 + (3 - 1)

= 3+ 3 - 1

= 6 - 1

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similarly,

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Also;

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2 years ago

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bulgar [2K]

Answer:

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Step-by-step explanation:

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Here, we can say Sum of a is n times.

We can rewrite it n x a = a+ a+a+a....n times.

Example : 3 x 2 = 2 +2+ 2.

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2 years ago

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AnnZ [28]

Answer:

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Step-by-step explanation:

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When you do the math, the exponent rule gives us fractions of $\frac{7}{4}$ for exponents, and eventually, a $3 * 3^{\frac{3}{4} }$ for both answers. So these are eliminated.

Now, for $(\sqrt[4]{3}^{7}$ , we can easiy simplify by changing the 7th root to a fraction in our exponent. Use the rule: $\sqrt[n]{x} = x^{\frac{1}{n} }$

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And we can see the answer we're looking for! If you use this method to look at the other problems, you'll see that this is the only radical that simplifies to the required answer.

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2 years ago

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