PLS HELP 20 POINTS!! WILL GIVE BRAINIEST

I need help with this story problem.. 8th Grade Chapter 9.3 Linear Functions:

Paladinen [302]

(1/5)x + 8 This will find 20% of the wholesale cost and add the $8 markup, where 'x' is the wholesale cost

8 0

2 years ago

25,000(4+3x) =125,000

Amanda [17]

To solve this equation, first we have to use the distributive property to eliminate the parentheses on the left side of the equation.

If done correctly, your simplified equation should be

100,000 + 75,000x = 125,000

Next, we would subtract 100,000 from both sides, resulting in the equation

75,000x = 25,000

Finally, we would divide both sides of the equation by 75,000, resulting in your final answer of

x= 25,000/75,000

However, many mathematics teachers ask for fractional answers to be simplified. To simplify fractions, we first find the GCF of both numbers, and then divide both the numerator and the denominator by the GCF.

The GCF of 25,000 and 75,000 is 25,000.

So, in simplest form, your final answer is

x=1/3

6 0

2 years ago

HELP HELP PLEASE I NEED HELP

dimaraw [331]

Answer:

<h2>FALSE</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

PEMDAS

<h3>tips and formulas:</h3>

order of PEMDAS

parentheses
exponent
multiplication or
division
addition
subtraction

left to right

<h3>let's solve:</h3><h2><u>L.</u><u>H.S</u><u>=</u></h2>

<u> $\sf simplify \: divition: \\ \tt 14 + 33 + 0.4$ </u>
<u> $\sf simplify \: additio n : \\ \tt 47.4$ </u>

therefore

<h3>the equality is false</h3>

8 0

2 years ago

Which fraction is equivalent to -(6/-7)<br> A) -(6/7)<br> B) (-6/7)<br> C) (6/-7)<br> D) (-6/-7)

Len [333]

Given fraction:
-(6/-7)
Apply plus/minus rule:
-(-a)=a and -(a)=-a
So -(6/-7) = -6/-7= 6/7
Option D is correct.

Answer: (-6/-7)

4 0

3 years ago

Read 2 more answers

The length of pregnancy isn’t always the same. In pigs, the length of pregnancies varies according to a normal distribution with

Nesterboy [21]

a. percent of pig pregnancies that are longer than 106 days

Since we have a normal distribution here and the average number of days is 106, we can say that 50% of the pig pregnancies are longer than 106 days.

b. percent of pig pregnancies that are shorter than 111 days

To get the percentage, we will have to convert x = 111 days into a z-score first. The formula is:

$z=\frac{x-\mu}{\sigma}$

where x = raw data, μ = population mean, and σ = population SD.

Since these 3 pieces of information are already given in the question, let's plug them into the equation above.

$z=\frac{111-106}{5}=\frac{5}{5}=1\sigma$

Therefore, 111 days is located 1 standard deviation to the right of the mean.

To find the percentage of pig pregnancies shorter than 111 days, we need to find the area covered to the left of 1 SD.

To find the area covered to the left of 1SD, we need to use the standard normal distribution table.

Based on the table, the area covered to the left of 1SD is 0.8413. Multiplying the area by 100, we get 84.13. Therefore, 84.13% of the pig pregnancies are shorter than 111 days.

5 0

1 year ago