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inessss [21]
3 years ago
6

PLZ HELP

Mathematics
1 answer:
jekas [21]3 years ago
5 0
Number of pieces times weight of each piece=weight of bag
25*20=500grams per 1 bag

200kg=200000g
weight of 1 bag times x bags=weight of all
500x=200000
divide both sides by 500
x=400
400 bags per day


2.
factor out 6
(6)(y^2+2y-5)=0
reemmber how if we had xy=0, assume x and/or y has to be 0?
assume that
y^2+2y-5=0
use quadratic formula
for ax^2+bx+c=0
x=\frac{-b+/- \sqrt{b^2-4ac} }{2a}
so the sum is
\frac{-b+ \sqrt{b^2-4ac} }{2a}+\frac{-b- \sqrt{b^2-4ac} }{2a}=\frac{-2b}{2a}=\frac{-b}{a}

easy peasy now

1y^2+2y-5=0
-b/a
-2/1
-2 is the sum



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If y=12 when x=22 what is y when x=45
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Under her cell phone plan, Peyton pays a flat cost of $48 per month and $3 per gigabyte. She wants to keep her bill at $60.60 pe
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Based on the information given in the question, the equation that can be used to determine the the number of gigabytes of data Peyton can use while staying within her budget will be:

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4 0
2 years ago
Read 2 more answers
What is the sum of the two expressions -2.9a+6.8 and 4.4a-7.3
Lady bird [3.3K]

Answer:

1.5a - 0.5

Step-by-step explanation:

Add like terms

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4 0
2 years ago
At the movie theatre, child admission is $6.30 and adult admission is $9.60 . On saturday, twice as many adult tickets as child
joja [24]

Let's assume

number of child tickets sold on saturday is x

number of adult tickets sold on saturday is y

On saturday, twice as many adult tickets as child tickets were sold

so, we get

y=2x

child admission is $6.30 and adult admission is $9.60

a total sales of $535.50

we get

6.30x+9.60y=535.50

now, we can plug y=2x

6.30x+9.60*2x=535.50

now, we can solve for x

25.5x=535.5

x=21

now, we can find y

y=2*21

y=42

so,

number of child tickets sold on saturday is 21

number of adult tickets sold on saturday is 42.........Answer


4 0
3 years ago
the sale price of a pair of pants is 65% of te regular price of $25. How much so you save by buying the pants on sale?
zysi [14]
$25 times 0.65 = $16.25 & then you do $25 - $16.25 which equals $8.75. So you save $8.75 by buying the pants on sale.
7 0
2 years ago
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