multiply the number of blocks by number of people per block
Then divide number of pizza places by that
1st block:
15 blocks x 220 people = 220*15 = 3300
26 pizza places = 26/3300 = 0.0078
2nd Block
175 * 22 =3850
33/3850 = 0.0085
the first one is just under 0.008 but if you round it to 3 places it is 0.008
the 2nd are is just over 0.008 ( 0.009 if you round it to 3 places)
so they would be better off building in the first area, if they build at all.
measure of what you have not finished the question
Hello there!
In order to solve this system of equations, you would first need to make one equation have a negative variable.
2a + 3b = -1
(3a + 5b = -2) -1
2a + 3b = -1
-3a - 5b = 2
Now, we have to modify the equations for it to be able to cancel out a variable. To do this, you would need to look at the least common multiple.
2: 2, 4, 6, 8, 10
3: 3, 6, 9, 12, 15
One least common multiple would be 6 so let's modify the equation!
(2a + 3b = -1) 3
(-3a - 5b = 2) 2
6a + 9b = -3
-6a - 10b = 4
Now, let's cancel out the variable and solve for b.
9b = -3
-10b = 4
-1b = 1
b = -1
In order to solve for a, just plug in the b into one equation and solve for a.
2a + 3(-1) = -1
2a - 3 = -1
2a = 2
a = 1
The answer would be a = 1 and b = -1
Total cost after discount and before tax will be $9.36!
Hi,
The answer you are looking for is x= -3.
Have a great day!!
