Need help please!!!!!!

Which of the fractions 13/20, 3/5, 3/4 and 7/10 is greatest

Andrei [34K]

Answer:

3/4

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

3x - (-2x + 10) = 25

Anuta_ua [19.1K]

Answer:

x = 6.25

Step-by-step explanation:

3x - (-2x + 10) = 25

-6x + 10x = 25

4x = 25

6.25 = x

4 0

4 years ago

PLS PLS PLS PLS help

Nikitich [7]

Im on that to, maybe i can help you !! :)

4 0

3 years ago

A company makes t-shirts and their research shows that that price and demand are related linearly: p = m x + b . They know that

allsm [11]

Answer:

The linear equation relating price to demand is Q=-0.5*P + 30

Step-by-step explanation:

The demand for a good is the quantity of that good that the demanders are willing to purchase at a given price.

Then, the Demand Curve relates the quantity that a consumer would be willing to buy as a function of price.

You seek to determine the linear equation that relates the price to the demand Q = m * P + b where Q is the quantity demanded at a price P, and compared with the equation of the straight line y = mx + b, m is the slope and b is the ordinate to the origin.

On a line of the form y = m * x + b, the value of m, having two points, is calculated by:

$m=\frac{y2-y1}{x2-x1}$

And the ordinate to the origin b is calculated, taking the value of m, replacing any of the two points (replacing any of the two because it must give the same value of b) in the expression y = m * x + b and solving its value.

In the case of Q=m*P+b, the value of m, having two points, is calculated by:

$m=\frac{Q2-Q1}{P2-P1}$

Being:

Q1= 5
P1= $50
Q2= 10
P2= $40

and replacing:

$m=\frac{10-5}{40-50}$

you get:

m= -0.5

So, being Q=-0.5*P+b, b is calculated by:

Replacing the point Q1= 5 and P1= 50

5= -0.5*50 + b → 5= -25 + b → 5+25= b → b= 30

Replacing the point Q1= 10 and P1= 40

10= -0.5*40 + b → 10= -20 + b → 10+20= b → b= 30

Then, <u><em>the linear equation relating price to demand is Q=-0.5*P + 30</em></u>

8 0

3 years ago

How are sales tax, tip and markup related

Ronch [10]

one is based on the other, is just extra charge based on the one before it.

say the store manager bought some scooter, she paid $10 for it.

well, she's not going to sell it for $10 because there are other costs, shipping, storage, cleaning up the scooter while in the store before is sold, rent for the store and so on, so the scooter is going to sell for more than $10............ hmmmm say $15.

so then the manager bumped up the price by $5, that bumped up amount is the markup.

now, the manager was so nice to you, she was wearing a nice perfume, so you give her a tip, the tip is usually, not always, but usually based on the price of the product, say you give her 10% tip, so 10% of 15 is 0.15.

whenever you buy that scooter, it comes with sales tax, provincial taxation to pay for public works, so you're not really going to pay $15 flat, it'll be $15 and some change, say tax is 20%, so you'll be buying that scooter for $15.30.

so, the scooter went from $10 to $15 due to markup to $15.15 with the tip to $15.45 if we add the 0.30 in tax.

the tip is based on the marked up price, and the tax is also based on the marked up price, though sometimes the tip is based on the after-tax price, not always.

7 0

3 years ago