Step-by-step explanation:
Let x be the number of households you mowed grass.
Let y be the number of households you shoveled snow.
From there, we know,

as equation 1.
next we also know,

as equation 2.
From here we know we can solve using simultaneous equations.
rearranging equation 1 with y the subject,

Substitute this equation into equation 2.

now substitute x = 14 into equation 1.

Therefore, you have mowed grass for 14 households and shovelled snow for 8 households.
143 employees
Because
4 to 7 means that for every 4 men, there is 7 women.
To figure this out I first divided 52 by 4
52÷4=13
I then multiplied this number by 7
13×7=91
Now knowing there are 91 women I added them together
91+52=143
You must first figure out what X is then plug it in to find Y
-79,000 + 45,34444444444=5.65
Answer:
<h3>D. P = 15 and Q = 15</h3>
Step-by-step explanation:
Put the values of P and Q to the equation Px - 45 = Qx + 75:
15x - 45 = 15x + 75 <em>subtract 15x from both sides</em>
-45 = 75 FALSE
In other cases, we get some value x.
Example:
A. P = -45 and Q = -75
-45x - 45 = -75x + 75 <em>add 45 to both sides</em>
-45x = -75x + 120 <em>add 75x to both sides</em>
25x = 120 <em>divide both sides by 25</em>
x = 4.8