1 ) Each player plays with every other only 1 game.
2 ) If in the i-th round there is a game between A and B, and a game between C and D, and in the i+1-th round there is a game between A and C, then in the i+1-th there must be a game between B and D.
On how many different ways can we make a schedule for all rounds if it's not important which player plays on which table?
Answer:
To calculate the actual yield of iron in moles, we need to use the molar mass of iron (Fe) and the given mass of iron produced.
The molar mass of iron (Fe) is approximately 55.845 g/mol.
Given:
Amount of Fe2O3 = 0.288 mol
Mass of Fe produced = 18.1 g
To find the moles of Fe produced, we can use the molar mass of Fe:
moles of Fe = mass of Fe / molar mass of Fe
moles of Fe = 18.1 g / 55.845 g/mol
moles of Fe ≈ 0.324 mol
Therefore, the actual yield of iron in moles is approximately 0.324 mol.
Answer:
y = 45
Step-by-step explanation:
70 and y + 25 are corresponding angle and corresponding angles are equal when we have parallel lines cut by a transversal
70 = y+25
Subtract 25 from each side
70-25 = y
45 = y
÷
5.12
please help tyty x
To round 494.37 to 1 significant figure, it becomes 400. To round 5.12 to 1 significant figure, it becomes 5. When we divide 400 by 5, we get 80.
For rounding 1 significant figure, we look at the first non-zero digit in the number. In this case, the first non-zero digit is 4. We keep that digit and drop all the digits to the right of it. So, 494.37 becomes 400.
Similarly, for 5.12, the first non-zero digit is 5. We keep that digit and drop all the digits to the right of it. So, 5.12 becomes 5.
Now, we divide 400 by 5, which gives us 80.
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Answer:
100
Step-by-step explanation:
rounding to 1 sig figure
494.37 ≈ 500
5.12 ≈ 5
Estimating
500 ÷ 5 = 100
If an art teacher has 4 1/8 gallons of paint to pour into containers, the art teacher can fill 11 containers with the 4 1/8 gallons of paint they have.
To solve the problem, we need to divide the total amount of paint by the capacity of each container.
First, we need to convert 4 1/8 gallons to an improper fraction. To do this, we multiply the whole number by the denominator and add the numerator, then put the result over the denominator:
4 1/8 = (4 x 8 + 1)/8 = 33/8
Next, we divide the total amount of paint by the capacity of each container:
33/8 ÷ 3/8 = 33/8 x 8/3 = 11
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Complete question is:
An art teacher has 4 1/8 gallons of paint to pour into containers. If each container holds 3/8 gallon, how many containers can they fill?