MATHEMATICS HIGH SCHOOL

Help please! absolute value equations! ​
help please! absolute value equations! ​ - 1

Answers

Answer 1
Answer:

Answer:

n = -1                       n = -7

Step-by-step explanation:

5| 2n+8| +3 = 33

Subtract 3 from each side

5| 2n+8| +3-3 = 33-3

5| 2n+8| = 30

Divide by 5

5/5| 2n+8| = 30/5

| 2n+8| = 6

An absolute value equation has two solutions, one positive and one negative

2n+8 = 6              2n+8 = -6

Subtract 8 from each side

2n+8-8=6-8          2n+8-8 = -6-8

2n = -2                    2n = -14

Divide by 2

2n/2 = -2/2            2n/2 = -14/2

n = -1                       n = -7

Related Questions

Will give brainliest A school chess club needs to raise at least $750 to attend a state competition. The club has already raised $400 and there are 4 months remaining until the competition. Which inequality and statement can be used to determine the dollar amount the club will need to raise during the remaining months?
Penjabaran dari 3×+2(4×-6)
The Smith'd CD’s sell for $10 and Arctic Monkeys CD’s sell for $15. If a music store sold 18 CD’s and worth $240, how many of each CD did they sell?​
Prove that:
What number solves this propoetion? 2.4/m=3/4.5

Seven people, named Anna, Bob, Chandra, Darlene, Ed, Frank, and Gina, will be interviewed for a job. The interviewer will choose two at random to interview on the first day. What is the probability that Anna is interviewed first, and Darlene is interviewed second?

Answers

Answer:

0.0238

Step-by-step explanation:

Total number of persons to be chosen from = 7

If each person has an equal probability of being selected ;

Number of persons to be selected = 2

Probability = required outcome / Total possible outcomes

P(Anna first) = 1 / 7

Recall; this is a selection without replacement ;

P(Darlene second) = 1 / 6

1/7 * 1/ 6 = 1 / 42 = 0.0238

An initial investment of $150,000 grows at 22% per year. What function represents the value of the investment after t years?​

Answers

Answer:

150000(1.22)^t

Step-by-step explanation:

A-150000

R- 0.22 plus the 1 since it’s positive y=A(1+r)

Sooo 150000(1+0.22)^t

Which situation describes a correlation that is not a causal relationship?

(1) Car color and number of car accidents

(2) Hours spent studying and test score

(3) Amount of exercise each week and the time it takes to run a mile

(4) Distance to reach a destination and the amount of gasoline used

Answers

I believe the answer would be (1) because they are not directly related

The cost of a telephone call is 75 cents plus 25 cents per minute. Write an algebraic expression that models the cost of a telephone call that lasts t minutes.

Answers

y=.75x+.25

.75(1)+.25= $1.00
x= the number of phone calls y= the total 
75 + 25 x t = Answer 

Example: 
t= 2 minutes
75 + 25 x 2 = $2.00

A student received an 82% on an exam. If there were 50 questions on the exam, which ratio would show the number of questions answered correctly?

Answers

Steps: 

1. First, divide 82 by 100, since this is what you would have originally gotten with the ratio. 
82 ÷ 100 = 0.82

2. Then multiply it by 50 (since this is how many questions were on the test)
0.82 × 50 = 41 <----- (the number of questions answered correctly)

3. Now that you have the two numbers you need, you can assemble the ratio. 

Answer: 41/50 

Hope I Helped! <3
There will be 41% the method is like this the total paper marks was 100% and there was 50 question first divide 100 divided into 50 you will get 2 as the answer then 2 divided into 82% the answer will be 41%

Multiplies to -2 adds to 6

Answers

xy=-2
x+y=6

minnus x from second equation
y=6-x
sub for y
x(6-x)=-2
6x-x^2=-2
add x^2 both sides and minus 6x both sides
0=x^2-6x-2
use quadatic formula

if you have
ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^(2)-4ac} }{2a}


x^2-6x-2=0
a=1
b=-6
c=-2
x=\frac{-(-6)+/- \sqrt{(-6)^(2)-4(1)(-2)} }{2(1)}
x=(6+/- √(36+8) )/(2)
x=(6+/- √(44) )/(2)
x=(6+/- 2√(11) )/(2)
x=3+/- √(11)

x=3+ √(11) or x=3- √(11)
aprox
x=6.31662 or -0.316625

those are the numbers

6.31662 and -0.316625
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