Answer:
(1, 3 )
Step-by-step explanation:
To find a solution choose a value for x, substitute into the equation and solve for y.
let x = 1 , then
- 7(1) + 3y = 2 , that is
- 7 + 3y = 2 ( add 7 to both sides )
3y = 9 ( divide both sides by 3 )
y = 3
One possible solution is therefore (1, 3 )
Answer:
A.81/4
Step-by-step explanation:
x^2-9x
This is in the form x^2 + bx
To complete the square, we take b/2 then square it and add it
b =-9
b/2 = -9/2
(b/2) ^2 = (-9/2) ^2 = 81/4
Let 't' represent the time of the walk in minutes.
5.1*t = 220
t = 43.14 min
The person needs to walk at least 43.14 minutes to but at least 220 calories.
Answer:
The length of the base edge is 3 cm
Step-by-step explanation:
Volume of square pyramid =
Where B = area of square base
H = Height
Let the length of base edge be x
Area of base =
Height of pyramid = 5 cm
So,Volume of square pyramid =
We are given that The volume of a square pyramid is 15 cubic centimeters.
So,
x=3
Hence the length of the base edge is 3 cm
the answer is 7/6. hope it is right