Answer:
46.6%
Step-by-step explanation:
15 - 8 = 7
7/15 = 0.466666...
4.666... x 100 = 46.6%
Answer: -69q+74
Step by step:
1. Use distributive property.
8⋅10+8(−6q) + 3(−7q − 2)
Multiply 8 • 10 then -6 • 8
80 - 48q + 3(-7q - 2)
2. Use distributive property again.
80 - 48q + 3(-7q - 2)
Multiply -7 • 3 then 3 • -2
80 - 48q -21q - 6
3. Simplify
Subtract 6 from 80 then subtract 21q from -48q.
-69q + 74
8(10 - 6q) + 3(-7q - 2) = -69q + 74
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I hope this answers your question. :)
To add with powers, both the variables and the exponents of the variables must be the same. You perform the required operations on the coefficients, leaving the variable and exponent as they are. When adding with powers, the terms that combine always have exactly the same variables with exactly the same powers
http://www.wikihow.com/Add-Exponents#Adding_Variables_with_Exponents_sub
Answer:
100 marks
Step-by-step explanation:
is the number of minutes a student was allowed to spend on the exam
is the students score out of 100
The slope of the regression line is ![0.24](https://tex.z-dn.net/?f=0.24)
The intercept is ![49](https://tex.z-dn.net/?f=49)
The equation of the regression line is ![y=0.24x+49](https://tex.z-dn.net/?f=y%3D0.24x%2B49)
If ![x=5\times 60=300](https://tex.z-dn.net/?f=x%3D5%5Ctimes%2060%3D300)
![y=0.24\times300+49\\\Rightarrow y=121](https://tex.z-dn.net/?f=y%3D0.24%5Ctimes300%2B49%5C%5C%5CRightarrow%20y%3D121)
We would expect a score of 100 as the test has a total score of 100 marks.
Answer:
3/68
Step-by-step explanation:
probability of blue = 4/17
after blue is selected, total number decreases by 1
so, probability of green = no fo greens/total number = 3/16
so probabilty = 4/17 * 3/16