The functions that model R for men and women are missing.
Nevertheless, I searched for them and here they are:
For women, R = 143 - 0.65a
For men, R = 165 - 0.75a
You are asked for the age of a man whose desirable R is 135, so you must use the equation for men, R = 165 - 0.75a, replace 135 for R and solve for a.
=> 135 = 165 - 0.75a
=> 0.75 a = 165 - 135
=> 0.75 a = 30
=> a = 30 / 0.75
=> a = 40.
Answer: option b. 40 years old.
Question:
Find the gradient of the line passing through (6,8) and (4,10).
Answer:
-1 is the right answer.
Step-by-step explanation:
Slope of the line = The gradient of the line
Gradient of the line is known as change in the value of y-axis by change in the value of x-axis
Gradient = ∆y\∆x
Ok to simplify this question you have to work with the pemdas(parenthesis, exponents, multiplication, division, addition, and subtraction) we have to set x by itself so to do this lets first subtract 10 from both sides (because 10 is a positive and the only way to get ride of a positive is with a negative) this will give result you in 3x=36, now divide to leave x completly by itself when you divide you should get x=12 (why 12, well because 3 fits in 36 12 times, to check this out you can multiply 3 times 13 and see what you get!! you will get 36 so we know that answer is correct) so you answer would be "x=12"
Hope this helps
Answer:
22
Step-by-step explanation:
because you add 10 and 12
Answer:
The probability is 0.05.
Step-by-step explanation:
A probability is the number of desired outcomes divided by the number of total outcomes.
In a certain study comma the chances of encountering a car crash on the road are stated as "1 in 20."
This means that in 20 times you go out on the road, in 1 of them you are expected to encounter a car crash.
This means that
The probability is 0.05.