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aniked [119]
3 years ago
8

^^^ Quickly answer please

Mathematics
2 answers:
Rom4ik [11]3 years ago
8 0
400, 4/5=.8 ,.8•500=400
alekssr [168]3 years ago
4 0

Answer:

400

Step-by-step explanation:

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PLEASE HELP DONT ANSWER IF YOU DONT KNOW....
Damm [24]

Answer:

5.7 Round it and you will get that

4 0
3 years ago
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For the reaction 2Fe + O2 → 2FeO, how many grams of iron oxide are produced from 42.4 mol of iron?
Butoxors [25]

In the balanced reaction

2 Fe + O₂   →   2 FeO

2 moles of iron (Fe) react with 1 mole of molecular oxygen (O₂) to produce 2 moles of iron oxide (FeO). The ratio of Fe to FeO is 1-to-1, so if one starts with 42.4 mol of Fe, one will end up with the same amount of FeO, 42.4 mol.

Look up the molar mass of Fe and O:

• Fe = 55.845 g/mol

• O = 15.999 g/mol

Then the molar mass of FeO is approximately 71.835 g/mol, and so the mass of 42.4 mol of FeO is

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8 0
3 years ago
A basketball player makes 4 out of 20 free throws. What is his shooting percentage?
DiKsa [7]
We can convert that into a fraction of 100 for the percentage. 

4/20= 20/100

(multiply both by 5)

So, the basketball player makes 20% of the throws.

I hope this helps!
~kaikers
4 0
3 years ago
I don’t know the answer pls help I’ll give you brainliest!! 19 points.
gladu [14]

Answer:

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Step-by-step explanation:

5 0
3 years ago
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A retailer allowed 12% discount and sold a T-shirt at a loss of Rs 16. If he had sold it at 10% discount he would have gained Rs
Murrr4er [49]

Answer: Marked Prixe = Rs. 1800

Step-by-step explanation:

Let the marked price be M

1) A retailer allowed 12% discount and sold a T-shirt at a loss of Rs 16.

SP = 0.88M

CP - SP = 16

CP = 16 + SP

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2) If he had sold it at 10% discount he would have gained Rs 20.

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CP = 0.9M - 20

16 + 0.88M = 0.9M - 20

0.9M - 0.88M = 20+16

0.02M = 36

36 = 0.02M

M = 1800

6 0
3 years ago
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