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pshichka [43]
3 years ago
5

Can someone help me with this ​

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
6 0

Answer:

3

Step-by-step explanation:

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A sheet of glass has a density of 2.5 g/cm3. what is the density of the glass in kg/m3
asambeis [7]

Answer:

this is ez

Step-by-step explanation:

2.5 g converted to kg: 2.5 g x 1 kg/1000 g = 0.0025 kg = 2.5x10-3 kg

cm3 converted to m3: 1 cm3 x 10-6 m3/cm3 = 1x10-6 m3

Thus, the conversion of 2.5 g/cm3 to kg/m3 would be 2.5x10-3 kg/10-6 m3 = 2.5x103 kg/m3 = 2500 kg/m3

7 0
3 years ago
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Each classmates contributes $2 for charity Write an expression for the amount of money raised by your class
Alecsey [184]
$2*S=A
S=Student
A=Total amount
3 0
3 years ago
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Abby has x dolls. Lauren has 9 times as many as Abby. Betsy has 7 fewer than Lauren. How many dolls do they have in all?
makkiz [27]

Answer: x + 9x + (9x - 7)

Simplified: 19x - 7

Step-by-step explanation: We see that Abby already starts off with x dolls. We put a 9 infront of the x for the second part of the expression because Lauren has 9 times as many dolls as Abby. Since Betsy has 7 less than Lauren, we take away 7 from 9x. We put that part in parenthesis because that part needs to be done first before we add everything together. Once simplified, we have "19x - 7". (I really tried my best so I hope this is the correct answer!)

5 0
2 years ago
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If Sean just bought M baseball cards, and sold 4 to his friend, what will be the expression for how many cards he has left?
solong [7]

M—4, 4 cards less than the original M number of cards.

8 0
2 years ago
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How do you solve 2x^2+4x=3+3x^2?
allochka39001 [22]

Answer:

5x^2+4x=3

Step-by-step explanation:

You add the like terms: 3x^2 and 2x^2, you get 5x^2. You can't do anything else because there are no more terms that are alike.

So the answer would be 5x^+4x=3

5 0
3 years ago
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