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3 years ago

What is -8n+5n? pleaseeeeee

Mathematics

2 answers:

Aliun [14]3 years ago

7 0

Answer:-3n

Step-by-step explanation:

Simply subtract

bonufazy [111]3 years ago

4 0

Answer: -3n

Step-by-step explanation: you have to subtract 8n and 5n which will give you -3n. Also because there are more negatives than the positives

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The equation yˆ=20646·0.86x estimates the value of a brand of car x years after it was purchased new. Milo purchased this brand

zhannawk [14.2K]

Answer:

$195311

Step-by-step explanation:

Given the expression yˆ=20646*0.86x

Given that the number years 11

And x represent the number of years

Substituting x=11 in the expression for the cost we have

yˆ=20646*0.86(11)

yˆ=20646*9.46

yˆ=195311.16

From the analysis he purchased the car fro $195311

3 0

3 years ago

Deion finds that the world's population is 7.048 billion and is increasing at a rate of 1.1% per year. Which function

Naddika [18.5K]

Answer:

Step-by-step explanation:

I think it’s a

8 0

3 years ago

Given the two points(-2,1) and (-3,-3) on the graph, calculate the scope

yuradex [85]

Answer:

$m=4$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (-2, 1)

Point (-3, -3)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m

Substitute [SF]: $m=\frac{-3-1}{-3+2}$
Subtract/Add: $m=\frac{-4}{-1}$
Divide: $m=4$

3 0

4 years ago

A loan of 43,000 is made of 4% interest, compounded annually. After how many years will the amount due reach $66,000 or more?

Charra [1.4K]

Answer:

10 yrs

Step-by-step explanation:

A=P(1+r/n)^nt, P=initial investment, r=annual interest rate,n=number of compounding periods per year, A=amount after t years

For given problem:

P=37000

r=5.5%=.055

n=1

A=62000

62000=37000(1+.055)^t

62/37=1.055^t

tlog(1.055)=log(62/37)

Using log keys on calculator:

t=log(62/37)/log(1.055)≈10 yrs

3 0

3 years ago

Read 2 more answers

A swimmer enters the water and swims in a straight line at 54 meters per minute. Another swimmer enters the water

Lady bird [3.3K]

Answer:

$x(t) = 54t$ and $y(t) = 134(t - 3)$

Step-by-step explanation:

Represent the swimmers with A and B

For Swimmer A:

$Rate = 54m/min$

For Swimmer B:

$Rate = 134m/min$

Required:

Write a parametric equation

For Swimmer A:

If swimmer A covers 54 meters in 1 minutes, then the swimmer covers 54t in t minutes

So, the function is:

$x(t) = 54t$

For Swimmer B:

If swimmer A covers t minutes, swimmer B swims for (t - 3) minutes because swimmer B starts 3 minutes later.

If in 1 minutes, swimmer B covers 134 minutes; In (t - 3) minutes, the swimmer covers 134(t - 3)

So, the rate is:

$y(t) = 134(t + 3)$

Hence, the parametric functions are:

$x(t) = 54t$ and

$y(t) = 134(t - 3)$

7 0

3 years ago