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3 years ago

Simplify the following expression. 3m+4n-6n

Mathematics

1 answer:

Ksju [112]3 years ago

8 0

Answer:

3m-2n

Step-by-step explanation:

xd..............

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customer buys 17.01 in gas and requests one five dollar [$5] lottery ticket, two one dollar [$1] lottery tickets, and one [$3]

Anettt [7]

100 - 17.01 - 5 - 2 - 3 + 5 + 2 =
100 - 17.01 - 3 =
100 - 20.01 =
$ 79.99 <===

4 0

3 years ago

Read 2 more answers

The quantity demanded x of a certain brand of DVD player is 3000/week when the unit price p is $485. For each decrease in unit p

Julli [10]

Answer:

a) Demand equation : $y=-\frac{2}{25}x+725$

b) Supply equation : $y=\frac{7}{100}x+350$

C) The equilibrium quantity and the equilibrium price are 2500 and $ 525 respectively

Step-by-step explanation:

We are given that For each decrease in unit price of $20 below $485, the quantity demanded increases by 250 units.

Since decrease in unit price of $20 increase demand by 250 units

So, Slope = $\frac{-20}{250}=\frac{-2}{25}$

We are given that The quantity demanded x of a certain brand of DVD player is 3000/week when the unit price p is $485.

Now for demand equation:

Use point slope form : $y-y_1=m(x-x_1)$

So, $y-485=\frac{-2}{25}(x-3000)\\y=-\frac{2}{25}x+725$

a)So, Demand equation : $y=-\frac{2}{25}x+725$

Now to find supply equation

We have two points (0,350) and (2500,525)

$(x_1,y_1)=(0,350)\\(x_2,y_2)=(2500,525)\\y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\y-350=\frac{525-350}{2500-0}(x-0)\\y-350=\frac{7}{100}x\\y=\frac{7}{100}x+350$

b) So, Supply equation : $y=\frac{7}{100}x+350$

Now to find equilibrium quantity and price equate demand and supply equation

$-\frac{2}{25}x+725=\frac{7}{100}x+350\\725-350=\frac{7}{100}x+\frac{2}{25}x\\x=2500$

So, equilibrium quantity = 2500

To find equilibrium price substitute equilibrium quantity in any equation

$y=\frac{7}{100}x+350\\y=\frac{7}{100}(2500)+350\\y=525$

C) The equilibrium quantity and the equilibrium price are 2500 and $ 525 respectively

4 0

4 years ago

What is the perimeter of the parallelogram? <br><br> 18 m<br> 24 m<br> 36 m

Mamont248 [21]

Answer:

36m

Step-by-step explanation:

The perimeter is given by

P = 2(l+w)

The length is 12 and the width is 6

P = 2(12+6)

P = 2(18)

P = 36

4 0

4 years ago

How do you find the answer

kati45 [8]

The answer is (2, 0).

4 0

3 years ago

I have no idea what the answer is too this. It is geometry if you didn't know already. I'm really struggling here. If anybody co

creativ13 [48]

Answer:

33.68

Step-by-step explanation:

The two y values coming from I are equal.

The two x values coming from K are equal.

That's because tangents to a circle from the same external point are equal.

5x + 1 = 6x - 3 Add 3 to both sides

5x + 1 + 3 = 6x -3+3 Combine

5x + 4 = 6x Subtract 5x from both sides.

5x-5x+4=6x- 5x Combine

4 = x

===================

y + 10 = 4y + 2 Subtract y from both sides

y-y+10=4y-y+2 Combine

10 = 3y + 2 Subtract 2 from both sides

10-2=3y+2-2 combine

8 = 3y Divide by 3

8/3 = y

y = 2.67

====================

Now you just put x and y into the parts that make up IK.

IK should come out to 33.68

5 0

4 years ago