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oksian1 [2.3K]
3 years ago
15

How to write 120 + 25x = 45x in a real world situation

Mathematics
1 answer:
Drupady [299]3 years ago
4 0
120 = 45x - 25x
120 = 20x
120/20 = x
6 = x
6x 45 = 270
6x 25 = 150
270 - 150 = 120

Our teacher had 45 bags of skittles with 6 skittles in each bag. (45x6 =270)
She also had 25 bags of gum with 6 pieces of gum in each bag. (25x6= 150)
How many did she save altogether for another day? (270-150)
She saved a total of 120 pieces of skittle and gum for another day.
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Please someone help me !!!!!
Sveta_85 [38]
X² = 16
x = ±√16
x = <span>±4

</span>The roots of this equation are -4 and 4
<span>Сorrect answer is third from above</span>
6 0
4 years ago
-6-4(3x2)+5^2<br> show step by step pls!
storchak [24]
PEMDAS
-6-4(3x2)+5^2

-6-4(6)+5^2

distribute
-6-24+5^2

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4 0
3 years ago
Nine more than 3 times a number is the same as 6 less than twice the number
Ludmilka [50]

Answer:

Step-by-step explanation:

Let the number  = x

3x + 9 = 2x - 6  Looks like you are going to get something negative here.

Subtract 2x from both sides.

3x - 2x + 9 = 2x - 2x - 6

x + 9 = -6    

Subtract 9 from both sides.

x + 9 - 9 = - 6 - 9

Combine

x = - 15

7 0
3 years ago
What are some tips/pointers to follow to have the best experiment design possible?
kompoz [17]
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-Choose a topic that will interest and challenge you.<span>Do not pick a broad topic.
</span>- Spend a lot of time gathering background research.
<span>- Predict  the outcome of your experiment with the help of equation.
</span>-Keep a detailed and up-to-date lab notebook with the results.
<span>- Do as many trials as possible .
</span><span>- During the experiment, do not get discouraged if you run into a lot of problems..</span>
8 0
3 years ago
Cotton said that she had to work 3 days to get $400! If Gabriella had to work for $3,000 how many days would she have to work?
Kaylis [27]
3,000/400= 7.5

So 7.5 days
3 0
3 years ago
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