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3 years ago

The total cost, in dollars, of 4 pencils and 5 pens if each pencil costs w cents and each pen costs 2w cents

1 answer:

3 0

Alrighty, so:
We have 4 pencils and 5 pens.
Pencils cost 2 cents.
Pens cost 2w cents.
The total can be represented as T.
4w+5(2w)=T

This is what I think the answer to your question is. Hope this helps! (:

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Solve for x in the diagram below. answer asap please

liq [111]

Answer:

x + 100+ 3x = 180

4x + 100 = 180

4x = 180-100

4x = 80

4. 4

x= 20°

6 0

3 years ago

What is the coefficient in the expression x-27?

Ymorist [56]

X - 27

The coefficient is a number used to multiply a variable. The variable is x. The coefficient is : (understood but not written)...it is 1.
ur problem is actually 1x - 27.....however, the 1 is not usually written.

4 0

3 years ago

!!!!!!!!!!!!!!!!!!!!

Andru [333]

Answer:

$f^{-1}(x)=4x+20$

Step-by-step explanation:

Given

$f(x)=\frac{x}{4}-5\\ \\y=\frac{x}{4}-5$

Swap x and y and solve for y

$y=\frac{x}{4}-5\\ \\x=\frac{y}{4}-5\\ \\x+5=\frac{y}{4}\\ \\4(x+5)=y\\\\y=4x+20$

Final answer

$f^{-1}(x)=4x+20$

Keep in mind that we need to swap the variables because a function and its inverse are symmetrical about the line y=x. See the graph below.

3 0

3 years ago

Oliver earns five dollars for each lawn he mowed.If he he’d six lawns to move but forgot to mow three of them how much money did

snow_lady [41]

$15

Explanation:

For each lawn he mows = $5

He should mow 6 lawns but did only 3 lawns as other 3 he forgot to mow.

earned:

mows lawn-d * $5

3 * $5

3 0

3 years ago

The box is resting on the table. Choose the correct number of planes in the figure.

Elanso [62]

Answer:

Option (6)

Step-by-step explanation:

Name f the planes of the figure given,

Plane JKL or plane Z

Plane PSR

Plane PQK

Plane SRL

Plane PSM

Plane QRL

Therefore, the number of planes of the box standing vertical on a table are 6.

Option (6) will be the answer.

3 0

3 years ago