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3 years ago

What is 3(k-6)=15? Please provide an explanation.

2 answers:

8 0

First you would have use the distributive property to make this an easier problem.So take 3 times k (if the variable has no number just add a one) and 3 times -6 to get the problem of 3k-18=15. Now you would add 18 to -18 and get 0 and do it on the 15. 15+18=33,now you have 3k=33.now you divide 3/3 and get 1 and divide 33 by 3 to get 11.
Answer is k=11

Mkey [24]3 years ago

5 0

I might be able to give you a hand here!

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Solve the equation.check your solution,if possible. 1/2s=4s-21

Sladkaya [172]

S=6

Solution
6/2=3
(6*4)=24
24-21=3

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3 years ago

An equation is shown.<br> f(w) = 2<br> +6<br> Find f(-16).

Nikitich [7]

Answer: f(-16) = -26

Step-by-step explanation: Let's substitute:

f(w) = 2w + 6 --> f(-16) = -32 + 6 =

f(-16) = -26
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2 years ago

Write the standard form of the line that contains a slope of and y-intercept of 3. include your work in your final answer. user:

KonstantinChe [14]

The slope is 3?? if yes, use the formula y=mx+b and plug in the slope and y int y=3x+3

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4 years ago

Please help<br> With this math

pshichka [43]

The answer is certainly c because i did that and got it right

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3 years ago

The length of a rectangle is the sum of the width and 4. The area of the rectangle is 32

Sauron [17]

Answer:

The width of rectangle w = 4 units

Step-by-step explanation:

We are given:

Width of rectangle = w

Length of rectangle = w+ 4

Area of rectangle = 32 units

We need to find width of the rectangle

The formula used is: $Area\:of\:rectangle=Length\times Width$

Putting values and finding width of rectangle

$Area\:of\:rectangle=Length\times Width\\32=(w+4)\times w\\32=w^2+4w\\w^2+4w-32=0$

We need to solve this quadratic equation to find width (w)

We will use factorisation and break the middle term.

$w^2+4w-32=0\\w^2+8w-4w-32=0\\w(w+8)-4(w+8)=0\\(w-4)(w+8)=0\\w-4=0\:or\:w+8=0\\w=4\:or\:w=-8$

Since width of rectangle can't be negative, so rejecting w=-8

Therefore, the width of rectangle w = 4 units

4 0

3 years ago