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KATRIN_1 [288]
3 years ago
5

How many sucrose molecules are in 3.0 moles of sucrose

Mathematics
1 answer:
vredina [299]3 years ago
8 0
3*6.022*10^23 no of molecules in 3.0 moles of sucrose
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A bag contains 10 black, 15 white, and 25 blue marbles. What is the probability of randomly selecting one
gulaghasi [49]

Answer: 0.8 or 80%

Step-by-step explanation:

First find the total number of marbles:

10 + 15 + 25 = 50 marbles total

To find the number of marbles that are not black:

15 + 25 = 40 marbles that are not black

Set up ratio:

\frac{40}{50} = 0.8 or 80%

4 0
2 years ago
Bobby earns $9 per hour plus commission. Last week he worked 32.5 hours
Nesterboy [21]

Answer:

Step-by-step explanation:

32.5*9=292.5

add the commission - $28.75

292.5+28.75= $321.25

8 0
1 year ago
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Factor to find the zeros of the function defined by the quadratic expression. −7x2 − 91x − 280
Mariulka [41]
There are no zeroes for an expression, only for equations.
Assuming equation to be
<span>−7x^2 − 91x − 280=0
-7(x^2+13x+40)=0
-7(x+8)(x+5)=0
by the zero product properties, 
x+8=0 => x=-8
or 
x+5=0 => x=-5</span>
3 0
3 years ago
Maria thinks of a number double it and add 5 answer is 21 write as an equation in X and solve it to find Maria's number​
lys-0071 [83]

Answer:

The number is 8

Step-by-step explanation:

<em>2x +5 =21 </em>

2x= 21-5

2x=16

2x/2=16/2

x=8

To check

8×2=16

16+5=21

5 0
2 years ago
Read 2 more answers
PLEASE TRY TO HELP !
Rufina [12.5K]

Answer:

the photo is a little blurry I cannot answer the question unfortunately sorry

5 0
3 years ago
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