Answer:
A and C
Step-by-step explanation:
A is correct because converting the percentage to decimal form will give you the value of that percentage, and 62% will be the same as 0.62 in decimal form.
C is the same in a less simplified form because 62/100 = 0.62, so it is the same as A when you convert it to decimal form, 0.62 · 45.
Answer:
x = 45
Step-by-step explanation:
x and 3x are adjacent angles and the form a straight line. Their sum will be 180 degrees
x +3x = 180
Combine like terms
4x = 180
Divide each side by 4
4x/4 = 180/4
x =45
I could help you, but how many paper clips were there? divide 7.20 by whatever number it is...
Answer:
See explanation
Step-by-step explanation:
Let x be the number of hours per week Nando is brisk walking and y be the number of hours per week Nando is biking at a moderate pace.
For the first month, he needs to exercise at most five hours per week, then
![x+y\le 5](https://tex.z-dn.net/?f=x%2By%5Cle%205)
Brisk walking burns about 350 calories per hour, then it burns 350x calories per x hours.
Biking at a moderate pace burns about 700 calories per hour, then it burns 700y calories per y hours.
Nando must burn at least 2,000 calories per week, so
![350x+700y\ge 2,000](https://tex.z-dn.net/?f=350x%2B700y%5Cge%202%2C000)
You get the system of two inequalities:
![\left\{\begin{array}{l}x+y\le 5\\ 350x+700y\ge 2,000\end{array}\right.](https://tex.z-dn.net/?f=%5Cleft%5C%7B%5Cbegin%7Barray%7D%7Bl%7Dx%2By%5Cle%205%5C%5C%20350x%2B700y%5Cge%202%2C000%5Cend%7Barray%7D%5Cright.)
The attached graph shows the solution set to this system of inequalities. In this diagram, red region represents the solution set to the first inequality, blue region represents the solution set to the second inequality and their intersection is the solution set to the system of two inequalities.
check the picture below.
make sure your calculator is in Degree mode.