Greg needs to bike 57 miles on the last day so that his average is 59 miles per day.
Answer:
The required system of equations is:
Step-by-step explanation:
First of all, the variables have to be selected to represent the quantities.
Let m be the number of male friends and let f be the number of female friends.
Then according to first statement "John has 30 friends"
And according to second statement "amount of male friends is 4 more than the number of female friends."
Hence the required system of equations is:
Answer: 66
Step-by-step explanation: 30 x 2 = 60... 30 / 5 = 6... 60 + 6 = 66 :D
i'm in seventh too hehe
Answer:
6
Step-by-step explanation:
25.12 = ⅓ * 12.56 * h
25.12 * 3 = 12.56 h
75.36 = 12.56 h
h = 75.36/12.56 = 6 cm
it is wrong?
Answer:
slope = 7
Step-by-step explanation:
You have that the plane y=1 intersects the following surface:
(1)
To find the slope of the curve, you first replace y=1 in the equation (1):
(2)
This is the generated curve when the plane y=1 intersect the surface z.
The slope of a function is given by the derivative of the function. Then, you calculate dz/dx in the equation (2):
The slope only depends of the value of x. The slope for the point P(1,1,2) is:
The value of the slope of the tangent line to point P is 7