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2 years ago

At the market. 8 batteries cost $10.How much do 6 batteries cost?

Mathematics

2 answers:

marishachu [46]2 years ago

6 0

Answer:

8 dollars hope this helps

Archy [21]2 years ago

6 0

Answer:

$7.50

Step-by-step explanation:

Each battery is $1.25 so 6 batteries is $7.50

Hope this helps!! Brainliest is appreciated.

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Solve the system. find x,y, and z please show all steps x-y+z=1 x+y+3z=-3 2x-y+2z=0

Mariulka [41]

Solving the system we get, x= -1, y= -2 and z= 0

Step-by-step explanation:

Solving the equations to find x, y and z

$x-y+z=1\,\,\,eq(1)\\x+y+3z=-3\,\,\,eq(2)\\2x-y+2z=0\,\,\,eq(3)$

Adding eq(1) and eq(2)

$x-y+z=1\\x+y+3z=-3\\--------\\2x+4z=-2\,\,\,\,eq(4)\\$

Adding eq(2) and eq(3)

$x+y+3z=-3\\2x-y+2z=0\\----------\\3x+5z=-3\,\,\,eq(5)$

Multiplying eq(4) by 3 and eq(5) by 2

$6x+12z=-6\\6x+10z=-6\\-\,\,\,-\,\,\,\,\,\,\,\,\,\,\,\,\,\,+\\----------\\2z=0\\z=0$

So, value of z =0

Putting value of z in eq(4)

$2x+4z=-2\\2x+4(0)=-2\\2x=-2\\x=-1$

So, value of x = -1

Now putting value of z=0 and x =-1 in equation 1

$x-y+z=1\\-1-y+0=1\\-y=1+1\\-y=2\\y=-2$

So, value of y = -2

So, solving the system we get, x= -1, y= -2 and z= 0

Keywords: Solve the system

Learn more about Solve the system at:

#learnwithBrainly

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3 years ago

Compare the box plots for two data sets. Which statement is true?

galben [10]

Answer:

Step-by-step explanation:

the answer is D.

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2 years ago

Factors of 28 and 44

erastovalidia [21]

28= 1,2,4,7,14,28,

44=1,2,4,11,22,44,

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2 years ago

A school picnic your teacher asks you to Market food trip every 10 yards Sullivan students can play football with the teacher ac

Gemiola [76]

1 yard = 0.9144 meters

1 yard * 10 = 0.9144 meters * 10

10 yards = 9.144 meters

9.144 meters

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2 years ago

Measuring angles with a protractor

tankabanditka [31]

Answer:

it is about 48 degrees

Step-by-step explanation:

MARK ME BRAINLIEST THANKS MY ANSWER PLEASE

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