If you have a picture i can help you
Answer:
Molly is 11 and Bobby is 3.
Step-by-step explanation:
Let Molly's age be m and Bobby's age be b.
Subtract b from both sides:
(Equation 1)
(Equation 2)
(Both equations are equal to each other as they are equal to m)
Subtract 14 from both sides:
Subtract 2b from both sides:
Divide both sides by -3:
Since , .
Answer:
Step-by-step explanation:
Let's re-write the equations in order to get the variables as separated in independent terms as possible \:
First equation:
Second equation:
Third equation:
Now let's subtract term by term the reduced equation 3 from the reduced equation 1 in order to eliminate the term that contains "y":
Combine this last expression term by term with the reduced equation 2, and solve for "x" :
Now we use this value for "x" back in equation 1 to solve for "y":
And finally we solve for the third unknown "z":
Answer:
D
Step-by-step explanation:
Volume of cone is given by the formula:
Volume of Cone =
Putting h = 6 and r = 9 in the formula, we get:
D is the correct choice.
Answer:
slope = -
Step-by-step explanation:
Calculate the slope m using the slope formula
m =
with (x₁, y₁ ) = (0, 2 ) and (x₂, y₂ ) = (4, 0 ) ← 2 points on the line
m = = = -