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.
There’s no problem to solve here
Answer:
<h2>11/26</h2>
Step-by-step explanation:
Since we have 13 heart card then
p(heart) = 13/52
Since we have 12 picture card then
p(picture) = 12/52
Since we have 3 heart and picture (at the same time) card then
p(heart∩picture) = 3/52
finally,
the possibility that you are dealt a heart or a picture card = p(heart or picture)
p(heart or picture) = 13/52 + 12/52 - 3/52 = 22/52
The right answer is the First one the second one the third one in the fifth one
