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3 years ago

What is the coefficient of the variable in the following expression? 6w + 8

Mathematics

2 answers:

Maru [420]3 years ago

8 0

6 is the coefficient

MA_775_DIABLO [31]3 years ago

8 0

6. Coefficients is the number in front of a variable.

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Solve x^2- 8x = 20 by completing the square. Which is the solution set of the equation?

yanalaym [24]

The solution is -2 and 10

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3 years ago

Is y=0.5x + 2 a linear function

Leno4ka [110]

To rephrase your question,

Does $y=0.5+2$ hold the form of $y=mx+n$ ?

The answer is <em>yes</em>.

Hope this helps.

Note:

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3 years ago

Barbara buys a box of pens for $4. for every additional box she buys, she gets a $1 discount. which expression represents the to

joja [24]

Let b=the number of boxes, c=cost of the pens
The expression that represents the total cost of the pens if a box costs 4 dollars and then she gets a 1 dollar discount for every additional box is c(b)=3b+1. We got this from the original equation c(b)=4+(4-1)(b-1). Simplify this and you will get c(b)=3b+1.

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4 years ago

Read 2 more answers

Three Cars for sale

Bumek [7]

Answer:

Car B.

Step-by-step explanation:

Car A : 12,380 = 12,400 --> diff : 20

Car B : 16,760 = 16,800 --> diff : 40

Car C : 14,580 = 14,600 --> diff : 20

7 0

3 years ago

a cookie baker has an automatic mixer that turns out a sheet of dough in the shape of a square 12 inches wide. His cookie cutter

iragen [17]

Answer:

All the sizes that satisfy $kd^2 =144$

Step-by-step explanation:

To answer this question we first need to find the minimum wasted area of the dough.

Let us call the diameter of the cookie $d$ , and $a$ the length of the dough sheet, then the $n$ number of cookies that fit into length $a$ will be

$n = \dfrac{a}{d}$

and therefore, the number that will fit into the whole square sheet will be

$n^2 = \dfrac{a^2}{d^2}$

Since the area of each cookie is

$A = \pi \frac{d^2}{4}$

the area of n^2 cookies will be

$A_n = n^2\pi \frac{d^2}{4}$ ,

which is the area of all the cookies cut out from the dough sheet; therefore, after the cutting, the area left will be

(1). $\text{area left}= a^2-n^2\pi \frac{d^2}{4}$

putting in the value of $n^2$ we get

$a^2- \dfrac{a^2}{d^2}\pi \frac{d^2}{4}$

which simplifies to

area left = a^2( 1 - (π/4))

putting in a = 12 we get

area left = 30.902 in^2.

Going back to equation (1) we find that

a^2-n^2(πd^2/4) =30.902

12^2- n^2(πd^2/4) =30.902

and if we call k = n^2, we get

12^2- k(πd^2/4) =30.902

113.098 = k(πd^2/4)

simplifiying this gives

kd^2 = 144.

As a reminder, k here is the number of cookies cut from the dough sheet.

Hence, our cookie diameter must satisfy kd^2 = 144,<em> meaning larger the diameter of the cookies less of the should you cut out to satisfy the above equality. </em>

8 0

4 years ago