Salutations!
<span>Last month Sarah Ryan and Taylor received a total of 882 emails. If Sarah receive 25% more emails than the sum of the numbers of emails received by Ryan and Taylor. How many emails did Sarah receive?
Lets solve this!
Let the sum of the number of email received by Ryan and Taylor be "x" and "y".
Sarah + Ryan + Taylor = 882 emails.
Sarah = 25/100 ( x+ 7)
Sarah = 25 + x + y/100 = 882
Now, isolate the numbers carefully ---
Sarah = 25 + x + y = 822 </span>× 100
Sarah = 25 + x + y = 82,200.
Sarah = x + y = 82,200 - 25
Sarah = x+ y = 82,175.
Sarah received 82,175 emails.
Hope I helped (:
Have a great day!
The coach is fat and halt but also very stubbornness for the acrobat
The ___Blood____ of the komodo dragon might help save human lives
Answer:
me but i dont know for sure he losing right now
Explanation:
i am so nervous
Answer:
B. CH₅N
Explanation:
The combustion reaction of a compound CₐHₓNₙ with O₂ is:
CₐHₓNₙ + O₂ → a CO₂ + X/2 H₂O + n NO₂
Where 1 mole of CₐHₓNₙ with an excess of O₂ produce a moles of CO₂, X/2 moles of H₂O and n moles of NO₂
Thus, you need to convert the mass of CO₂ and H₂O to moles to find the C:H ratio and determine a possible empirical formula thus:
Moles CO₂ (Molar mass 44g/mol):
44g ₓ (1mol / 44g) = 1 mole CO₂ = 1 mole C
Mole of H₂O (Molar mass 18g/mol):
45g ₓ (1 mol / 18g) = 2.5 moles H₂O = 5 moles H
Thus, in the compound you have 5 moles of H per mole of C, and a possible empirical formula is:
B. CH₅N
The only structure that meet this C:H ratio
