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gtnhenbr [62]
2 years ago
9

2 = (8 p +10) how do you solve this problem?

Mathematics
1 answer:
Marta_Voda [28]2 years ago
8 0

Answer:

P=-1

Step-by-step explanation:

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Juan and his friends bought drinks for a charity event. The table shows the numbers of each kind of drink bought, and the amount
OverLord2011 [107]

Answer: soda costs $3

Lemonade costs $4

Water costs $2

Step-by-step explanation:

The table shows the number of Soda, lemonade and water bought by Juan, Lee and morris and the total amount each of them spent in buying these drinks

Juan spent $43 on 5 bottles of soda, 4 bottles of lemonade and 6 bottles of water

Lee spent $34 on 2 bottles of soda, 5 bottles of lemonade and 4 bottles of water

Morris spent $41 on 3 bottles of soda, 7 bottles of lemonade and 2 bottles of water

Let price of soda be x

Let price of lemonade be y

Let price of water be z

From the table

5x + 4y + 6z = 43 - - - - - - 1

2x + 5y + 4z = 34 - - - - - - 2

3x + 7y + 2z = 41 - - - - - - -3

Multiply equation 1 by 2 and equation 2 by 5

10x + 8y + 12z = 86

10x + 25y+20z =170

Subtracting

-17y -8z= -84 - - - - - -4

Multiply equation 2 by 3 and equation 3 by 2

6x + 15y+12z = 102

6x + 14y + 4z = 82

Subtracting

y + 8z = 20 - - - - - 5

Add equation 4 and equation 5

-16y = -64

y= -64/-16 = 4

Put y= 4 in equation 4

-17 × 4 -8z = - 84

-68-8z = -84

-8z = -16

z = -16/-8 = 2

Put y = 4 and z = 2 in equation 1

5x + 4×4 + 6×2 = 43

5x + 16 + 12 = 43

5x = 43-28= 15

x = 15/5 = 3

3 0
3 years ago
A small publishing company is planning to publish a new book. The production cost will include one time fix costs (such as editi
icang [17]

For the first method the fix cost is $ 15,113 and the variable cost is $ 22/book.

For the second method the fix cost is $ 63,848 and the variable cost is $ 10.75/book.

Let the number of books be <em>x</em> for which the cost from the two methods is same,

\begin{gathered} 15113+22x=63848+10.75x \\ 11.25x=48735 \\ x=4332 \end{gathered}

Thus, the required number of books is 4332.

7 0
1 year ago
A recipe for 1/2 dozen cookies calls for 1/4 pound of butter.
9966 [12]
Dozen = 12
half dozen = 6
3 dozen = 36

x6 the recipe, 1/4x6= 1.5lbs of butter
4 0
2 years ago
Write an expression to model the
lilavasa [31]

Answer: $13.50x + $75 =

3 0
3 years ago
4. What is the experimental probability of spinning orange?
9966 [12]
Answer:6/25

To get this you just add up all the spins which equals 50 so this then means 50 is your denominator
Then because it’s asking for the orange you need to look at the orange colom and it say 12 so this is then this is the numerator
So it would be 12/50 but you can make this smaller so you divide by 2 and get 6/25

Hope this helped!

7 0
3 years ago
Read 2 more answers
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