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4 years ago

Please help!! Which solution??

Mathematics

2 answers:

lys-0071 [83]4 years ago

6 0

Answer:

the answer is -8. To do this first minus one of the x variables to the other I will use -8 but either one works. from there you will get 2x+4=-12. From there minus 4 to 13 giving you -16 then divide it by 2 giving us our final answer -8.

Step-by-step explanation:

Vikki [24]4 years ago

5 0

X=-8

-8x + 6x is -2x
12 + 4 = 16
-2x = 16
÷-2 ÷-2
x = -8

you switch signs when crossing over the equal sign

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Eduardo bought 2liter sports drink for soccer practice during practice Eduardo drank 250 millimeters of sport drink then he dran

Jlenok [28]

Answer:

He have left 1250 milliliters of sport drink.

Step-by-step explanation:

Given:

Eduardo bought 2 litre sports drink for soccer practice during practice.

Eduardo drank 250 milliliters of sport drink then he drank another 1/2 liter.

Now, to find the milliliter of sport drink he have left.

Eduardo bought sports drink = 2 litre.

Now, to convert litre into milliliter by using conversion factor:

1 litre = 1000 milliliter.

2 liters = 2 × 1000 milliliters.

2 liters = 2000 milliliters.

Thus, Eduardo bought 2000 milliliters sport drink.

As, Eduardo drank 250 milliliters of sport drink.

So, to get the sport drink left after he drank we subtract 250 milliliters from 2000 milliliters:

$2000-250\\\\=1750\ milliliters.$

Thus, 1750 milliliters sport drink left.

Now, to get the sport drink left after he drank $\frac{1}{2} \ liter$ we subtract $\frac{1}{2} \ liter$ from 1750 milliliters:

$\frac{1}{2} \ liter =500\ milliliters.$

So,

$1750-500\\\\=1250\ milliliter.$

Therefore, he have left 1250 milliliters of sport drink.

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