Answer:
x = 45
Step-by-step explanation:
5 (2x - 5) = 1/2 (18x + 40)
10x - 25 = 9x + 20
10x = 9x + 45
x = 45
Answer: 2²/₃ pounds
Step-by-step explanation:
There are 8 pounds of fruit.
These are to be used to make 3 equal sized fruit salad.
The weights of each fruit salad will therefore be:
= Pounds of fruit/ Number of fruit salads
= 8 / 3
= 2²/₃ pounds
t is of interest to find the equations of the tangent to x^2+y^2=10 at (a,b) where the point is on the curve.
Taking the derivative, 2+2′=0⇒′=− , and so the slope of the tangents are =− .
The equation of the tangent looks like
=−+⇒=−2+⇒=2+2=10
The equation becomes, +=10 .
Now use this formula.
Answer:
<u>Define a Variable</u>: x = the number
<u>Equation</u>: 1/2x - 6 = 2 1/2x + 10
<u>Solve</u>:
1/2x - 6 = 2 1/2x + 10
1/2x - 16 = 2 1/2x
-16 = 2x
x = -8
