Answer:
He is incorrect
Step-by-step explanation:
He is incorrect because if there is one line in a graph even though you put two equations, that just means that any number is possible (Infinitely Many Solutions). An empty set is a set with no elements so that would be wrong.
The probability the pitch over the plate is a ball is 5:10. (5 balls and 10 strikes over the plate) should be written as 5:15 or 1:3 so this one is inaccurate.
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2431 is the product of consecutive numbers 11, 13 and also 17. If you add them all together you get 41.
Step-by-step explanation: Let
Let
y
be the total fee, and
x
the number of months.
Equation 1:
y
=
50
+
55
x
Equation 2:
y
=
200
+
45
x
Solve the system for
x
and
y
:
50
+
55
x
=
200
+
45
x
10
x
=
150
x
=
15
y
=
200
+
45
(
15
)
y
=
875
∴
The total amount paid to both gyms is equal after
15
months and will be
$
875
.
Hopefully this helps!