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MAVERICK [17]
3 years ago
13

PLEASE HELP ASAP 100 POINTS AND BRAINIEST please solve 7y + 13 -4z when =5 and z =9.

Mathematics
2 answers:
Molodets [167]3 years ago
8 0

Answer:

35+13-36

Step-by-step explanation:

35+13=48

48-36=12

Svetach [21]3 years ago
4 0

the answer is:

=12

if you need the step by step explanation let me know :)

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I will let it lead me down the paths ahead of me. I never in my life thought that Dylan McKay would be a major influence on my growth as a person. But that's the way it seems to be going right now. So wish me luck, and may the bridges I've burned light the way.

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Mei and Alberto are selling cookie dough. Mei sold 11 packages of chocolate chip and 12 packages of gingerbread for a total of $
ycow [4]

Answer:

The price of a package of chocolate chip is $13.25

The price of a package of gingerbread is $17.18

Step-by-step explanation:

11x + 12y = 352

10x +8y = 270

Let "x" be the price of a package of chocolate chip.

Let "y" be the price of a package of gingerbread.

11x + 12y = 352(Multiply the 1st row by 10)

10x +8y = 270 (Multiply the 2nd row by 11)

-------------------

110x + 120y = 3520

110x +88y = 2970

--------------------------

        3y = 550

y =550/3

y = 17.1875

The price of a package of gingerbread "y" is $17.18

Let's pick the first equation "110x + 120y = 3520"

110x + 120y = 3520

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110x+2062.5=3520

110x=3520−2062.5

110x=1457.5

x= 1457.5/110

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The price of a package of chocolate chip is $13.25

6 0
3 years ago
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