Answer:
x=32° is the correct answer
Step-by-step explanation:
x+75°+73°=180
x+148°=180
x=180°-148°
x=32°
Step-by-step explanation:
16 = 20% to get to 80% we need to times by 4 so it adds up to 100%
64=80%
the orginal price was 64 dollars
1 man ... 2 women
350 men ... x women = ?
If you would like to know how many women are there if the number of men is 350, you can calculate this using the following steps:
1 * x = 2 * 350
x = 2 * 350
x = 700 women
The correct result would be 700 women.
Answer:
cells
Step-by-step explanation:
Let the number of cells she used in 2nd experiment be "x"
Since the latter experiment she uses LESS, we can say:
"<em>What number times 2000 gives us 2.8 * 10 ^ 12??"</em>
<em />
We can create an equation such as:
![x*2000=2.8*10^{12}](https://tex.z-dn.net/?f=x%2A2000%3D2.8%2A10%5E%7B12%7D)
Thus, x would be:
![x*2000=2.8*10^{12}\\x=\frac{2.8*10^{12}}{2000}](https://tex.z-dn.net/?f=x%2A2000%3D2.8%2A10%5E%7B12%7D%5C%5Cx%3D%5Cfrac%7B2.8%2A10%5E%7B12%7D%7D%7B2000%7D)
Let's convert 2000 into scientific notation first. We would take decimal point to the left until we have 1 digit to left of decimal and make 10 raised to that many units we take left "to the power".
So
2000 = 2 * 10 ^3
Now, let's remember rule of dividing numbers in scientific notation:
![\frac{a*10^b}{c*10^d}=(\frac{a}{c})*10^{b-d}](https://tex.z-dn.net/?f=%5Cfrac%7Ba%2A10%5Eb%7D%7Bc%2A10%5Ed%7D%3D%28%5Cfrac%7Ba%7D%7Bc%7D%29%2A10%5E%7Bb-d%7D)
Now, we do our problem using this rule:
![x=\frac{2.8*10^{12}}{2000}\\x=\frac{2.8*10^{12}}{2*10^3}\\x=(\frac{2.8}{2})*10^{12-3}\\x=1.4*10^9](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B2.8%2A10%5E%7B12%7D%7D%7B2000%7D%5C%5Cx%3D%5Cfrac%7B2.8%2A10%5E%7B12%7D%7D%7B2%2A10%5E3%7D%5C%5Cx%3D%28%5Cfrac%7B2.8%7D%7B2%7D%29%2A10%5E%7B12-3%7D%5C%5Cx%3D1.4%2A10%5E9)
Thus, she used
cells in her 2nd experiment
9514 1404 393
Answer:
- 267/200 = 1.335
- 131/150 = 0.8733...
- 1/10,000 = 0.0001
- 1/12 = 0.0833...
Step-by-step explanation:
It might be helpful to think of the % symbol as being interchangeable with /100.
133 1/2% = (133 1/2)/100 = 267/200 = 1.335
87 1/3% = (87 1/3)/100 = 262/300 = 131/150 = 0.8733333... (repeating 3)
0.01% = 0.01/100 = 1/10000 = 0.0001
8 1/3% = (8 1/3)/100 = 25/300 = 1/12 = 0.0833333... (repeating 3)