Answer:
B I guess cause that was the closest answer
I’m from the U.K. and prefer using the pound sign, so just change it back to dollars.
Last Week: £30 + £20 = £50
This week
Babysitting sister = £20 (x4) = £80
Pet sitting for 2 days = £30
Total this week: £110
Monthly total: £110 + £50 = £160
Answer is: £160
Answer:
45 students speak Spanish at Francis Lewis High School
Step-by-step explanation:
Option1:
18000 = 400x
x = 45 students speak Spanish at Francis Lewis High School
Option2:
72 ÷ 400 = 0.18
0.18 * 250 = 45 students speak Spanish at Francis Lewis High School
Answer:
6.64*10^(-9) moles of oxygen.
Step-by-step explanation:
If we have N molecules, the number of moles is given by:
n = N/Nₐ
where Nₐ is the Avogadro's number:
Nₐ = 6.02214076*10^23
In 2.000*10^15 molecules of sulfur dioxide, we have:
n = (2.000*10^15)/(6.02214076*10^23) = 3.32*10^(-9) moles of sulfur dioxide.
Now, sulfur dioxide has two oxygens and a single sulfur.
Then a mole of sulfur dioxide has two moles of oxygen and a single mol of sulfur.
Then in 3.32*10^(-9) moles of sulfur dioxide, we have twice that amount moles of oxygen, or:
2*3.32*10^(-9) = 6.64*10^(-9) moles of oxygen.
9514 1404 393
Answer:
D. (1, 3.5)
Step-by-step explanation:
The midpoint formula is useful.
M = (E + F)/2 = ((5, -1) +(-3, 8))/2 = (5 -3, -1+8)/2 = (2, 7)/2
M = (1, 3.5)
The midpoint is (1, 3.5), matching choice D.
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If you plot the offered answers on a graph, the correct one becomes clear. It will not have an x-coordinate of 4, and it will not have a negative y-coordinate.