Answer: The answer is 5 pizzas
9p + .75d = 75.00
5p = d
by substitution,
9p + .75(5p) = 75
12.75p = 75
p=5.88
Answer: 4.25 or 17/4 is the height
Step-by-step explanation:
V=pi*r^2*h
We set them equal to each other and solve for h
pi*3^2*17=pi*6^2*h
h=9*17/36=153/36=4.25=17/4
Answer:
x=+30
Step-by-step explanation:
1200-5(3x+30)=600
We move all terms to the left:
1200-5(3x+30)-(600)=0
We add all the numbers together, and all the variables
-5(3x+30)+600=0
We multiply parentheses
-15x-150+600=0
We add all the numbers together, and all the variables
-15x+450=0
We move all terms containing x to the left, all other terms to the right
-15x=-450
x=-450/-15
x=+30
In solving for the solution set of the inequality <span>15y - 9 < 36, much like any other algebraic equation, the first step should be to isolate y. This is done as follows:
</span><span>15y - 9 < 36
Adding 9 to both sides of the equation:
15y - 9 + 9 </span><span>< 36 + 9
15y </span><span>< 45
Dividing both sides by 15 to isolate y:
15y/15 </span><span>< 45/15
y </span><span>< 3
Therefore the answer is the third choice y </span><span>< 3.</span>