Answer:
Emily have 33 cookies.
Step-by-step explanation:
Given that:
Batches of cookies baked = 3
Number of cookies in each batch = 13
Total number of cookies = 3 * 13 = 39 cookies
She ate 2 cookies.
Remaining = 39 - 2 = 37 cookies
She gave 10 to her neighbor
Remaining = 37 - 10 = 27 cookies
1 batch = dozen cookies
half batch = 6 cookies
Total cookies = 27 + 6 = 33 cookies
Hence,
Emily have 33 cookies.
Answer: 0.28
Step-by-step explanation:
Binomial probability formula :
, where x = Number of success , n= sample size , p= probability of success for each trial.
Let x = Number of hens lay eggs.
then, p= 0.80
n= 12
For x=10
Hence, the required probability = 0.28
Nitrogen (N) has a molar mass of about 14.007 g/mol, so you have
100.0 g N₂ = (100.0 g) • (1/28.014 mol/g) ≈ 3.570 mol N₂
Hydrogen (H) has a molar mass of about 1.008 g/mol, so
100.0 g H₂ = (100.0 g) • (1/2.016 mol/g) ≈ 49.60 mol H₂
In the balanced reaction, 1 mole of N₂ reacts with 3 moles of H₂ to make 2 moles of NH₃. We have
3.570 • 3 ≈ 10.71
so the reaction would use up all 3.570 mol N₂ and 10.71 mol H₂ to produce about 7.139 mol NH₃.
(A) H₂ is the excess reactant. There is an excess of 49.60 - 10.71 ≈ 38.89 mol H₂.
(B) N₂ is the limiting reactant. All of the N₂ gets consumed in the reaction.
(C) NH₃ has a molar mass of (14.007 + 3 • 1.008) g/mol = 17.031 g/mol. This reaction would theoretically yield about 7.139 mol NH₃, or
7.139 mol NH₃ = (7.139 mol) • (17.031 g/mol) ≈ 121.6 g NH₃
Answer:
33%
Step-by-step explanation:
1) Make it a decimal: 1/3=0.33
2) Make it a percent (move it 2 spaces larger): 0.33=33%
Answer:
120 brownies
Step-by-step explanation:
if you divide 40/8 you get 5 and you times 24 times 5 you get 120
