MATHEMATICS HIGH SCHOOL

Clara played a video game with three levels. It took her 2 hours and 25 minutes to beat the first level and 2 hours and 25 minutes to beat the second level. Clara played the final level for 1 hour and 50 minutes to finish the game. She beat the final level and stopped playing at 5:20 pm . What time did Clara start playing the game

Answers

Answer 1

Answer:

Answer: 11:40 am

Step-by-step explanation:

Step 1: we are going to add all the hours she played so these are the hours:

1st level: 2hours and 25min

2nd level: 2hours and 25min

3rd level: 1hour and 50min

When we add these this equals 5hours and 40min.

Step 2: Now we are going to subtract the hours so 5:20pm minus 5hours and 40min is 11:40am

Therefore Clara started playing video games at 11:40am

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Combining 0.288 mol Fe2O3 with excess carbon produced 18.1 g Fe. What is the actual yield of iron in moles

Answers

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.

Could someone help me do this :D

Answers

y = side

Perimeter = 8y

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Answers

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Factor the four-term polynomial.pq - 3r + pr - 3q.

(p - 3)(q + r)
(p - r)(q + 3)
(p + 3)(q - r)

Answers

Hello,

$pq-3r+pr-3q=pq-3q+pr-3r=q(p-3)+r(p-3)=(p-3)(q+r)$

Answer A

EASY 50 POINTS. PLEASE HELP!!! Write the equation of a quadratic with a parent of y = 4x^2 and a vertex of (−5, 7).

Answers

Answer:

y= (x+5)^2 +7

Step-by-step explanation:

Answer:

y= (x+5)^2 +7

We find quadratic with a parent of y = 4x^2 and a vertex of (−5, 7).

We get y= (x+5)^2 +7

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Answers

Answer: 509,082

Step-by-step explanation:

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