Your first line calculation is already true but reversed. The demand will decrease (that mean the formula would be minus) by 20 gallons for every $0.4 price increase, which means 50 gallons/$. To find the formula you need to insert one sample of either the first equation (65gallon and $3.1) or 2nd equation (45 gallons and $3.5). The formula for demand should be:
q= C - 50p
65 gallon= C- 3.1 * 50
C= 65 gallon + 155 gallon= 220 gallon
The formula would be:
q= 220- 50p
So the second question can be solved by putting 0 on the Q. It would be:
q= 220- 50p
0=220-50p
50p=220
p= $4.4
Answer:
T-shirt costs £10
Hat costs £3
Step-by-step explanation:
£93-£43=£50
9-4=5
£50/5=10
1 t-shirt=£10
£10x9=£90
£93-£90=£3
T-shirt = £10
Hat= £3
The vertices are the following intersection points:
1) y = 0 and x 0 0 => (0,0)
2) x = 0 and 2x - 6y = - 3 => (0, 1/2) = (0, 0.5)
3) 2x + 3y = 6 and 2x - 6y = - 3 => (3/2, 1) = (1.5, 1)
4) y = 0 and 2x + 3y = 6 => (3,0)
Answer: (0,0) , (0, 0.5) (1.5, 1), (3, 0) = the third option.
Answer:
50 cm^2
Step-by-step explanation:
The volume of a square pyramid can be found using:
v= 1/3 bh
Where b is the area of the base, and h is the height
First, we have to find the area of the base
a=l*w
In a square, all sides are equal, so we know the length and the width are both 5
a=5*5
a=25
Now, we can substitute 25 in for b, and 6 in for h
v=1/3bh
v=1/3(25*6)
v=1/3(150)
v=50
Volume uses units cubed, and in this case our units are centimeters
The volume is 50 cm^3