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3 years ago

Is my student correct?

Mathematics

2 answers:

tino4ka555 [31]3 years ago

8 0

Answer:

Yes

Step-by-step explanation:

There hasn't been a chemical change, rather, just a physical change. All that had happened was a liquid turning into a solid, which doesn't require a change in elements of the liquid itself.

Finger [1]3 years ago

7 0

Answer:

YES

Step-by-step explanation:

BECAUSE A CHEMICAL CHANGE STAYS THE SAME AND A PHYSICAL CHANGE CAN GO BACK TO NORMAL

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micheal brought 12 used books at th book sale. he paid $42.60 for the books. if each book cost the same price, how much did one

nordsb [41]

Answer:

Each book cost $3.55

Step-by-step explanation:

3 0

3 years ago

HELP When 2((Three-fifths x + 2 and three-fourths y minus one-fourth x minus 1 and one-half y + 3)) is simplified, what is the r

lesya692 [45]

Answer:

<h2> StartFraction 7 over 10 EndFraction x + 2 and one-half y + 6</h2>

Step-by-step explanation:

Given the expression $2(\frac{3x}{5}+2\frac{3y}{4}-\frac{x}{4}-1 \frac{1}{2}y+3)$

To simplify the expression, we need to first collect the like terms of the functions in parentheses as shown;

$= 2(\frac{3x}{5}-\frac{x}{4}-1 \frac{1}{2}y+2\frac{3}{4}y+3)\\= 2(\frac{3x}{5}-\frac{x}{4}- \frac{3}{2}y+\frac{11}{4}y+3)\\$

Then we find the LCM of the resulting function

$= 2(\frac{3x}{5}-\frac{x}{4}- \frac{3}{2}y+\frac{11}{4}y+3)\\= 2(\frac{12x-5x}{20} - (\frac{6y-11y}{4})+3)\\= 2(\frac{7x}{20}- (\frac{-5y}{4})+3 )\\= 2(\frac{7x}{20}+ \frac{5y}{4}+3 )\\= \frac{7x}{10} + \frac{5y}{2} +6\\= \frac{7x}{10} + 2\frac{1}{2}y+6\\$

The final expression gives the required answer

7 0

3 years ago

911 x 65 what is 911 x 65 not just the answer the work to

alexandr402 [8]

Answer:

Step-by-step explanation:

911

5x1=5

5x10=50

5x900=4500

60x1=60

60x10=600

60x900=54000

5+50+4500+60+600+54000=59,215

6 0

3 years ago

Read 2 more answers

How do you do 4(x-3) you have to use distributive property to remove the parentheses..

Oksana_A [137]

Answer:

4x -12

Step-by-step explanation:

Your question answers itself: you use the distributive property to remove the parentheses.

4(x -3) = 4(x) +4(-3) = 4x -12

5 0

3 years ago

What is the greatest commen factor of 30 and 54

seropon [69]

54. 30
^ ^
27 2. 10 3
^ ^
9 3. 5 2
^
3 3
They only have 3 and two in common when you fully factor them. 3×2= 6
6 is the greatest common factor.

3 0

3 years ago

Read 2 more answers

Is my student correct?​

Is my student correct?