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Flauer [41]
3 years ago
5

Find each sum. (3n2 – 5n + 6) + (–8 n 2 – 3n – 2) =

Mathematics
1 answer:
leonid [27]3 years ago
8 0
3n2 -8n2 -5n-3n+6-2 = -5n2-8n+4
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Please please please help me with this answer
Rasek [7]

x = number of packages he bought

y = number of popsicles in each package

Here are the two equations:

xy = 54

x = 3 + y

Using the substitution method, you can solve them to find x and y.

(3 + y)y = 54,

3y + y^2 = 54

y^2 + 3y - 54 = 0

Solve the quadriatic equation:

(y +9)(y - 6) = 0

y = -9, 6.

Plug y into: xy = 54

x(-9) = 54, x = -6.

x(6) = 54, x = 9.

So he bought 9 packages of popsicles, bc you can't bye -6 packages.

3 0
3 years ago
What is the volume of this cube? Enter your answer as a number only; no units.
muminat

Answer:

.125

Step-by-step explanation:

The volume of a cube is found by

V = s^3  where s is the side length

V = .5 ^3

V =.125 m^3

3 0
3 years ago
Read 2 more answers
Molly has 190 dollars in her bank account and spend 10 dollars every trip write an equation for molly
leonid [27]
10xt=190
T represents the amount of trips and 10 represents the amount of money she spends each trip. Since she has $190 already it will be on the other side of the equation after the equal sign
3 0
3 years ago
Zach needs a new pair of running shoes. If the shoes he want to buy are $129.00 and he has 25% off coupon, what is the new price
Alexxandr [17]

129.00 divided by 25% will give you the answer try it tell me if it worked :)

4 0
3 years ago
Carolyn sells homemade candles. Write an expression for her total revenue if she sells x candles for $5 each
jok3333 [9.3K]

Answer:

I think it would be X x 5 = Y

Step-by-step explanation:

5 0
3 years ago
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