Answer:
2x+y=7
5x-3y=1
we do reduction.
3(2x+y=7)............6x+3y=21
5x-3y=1............... 5x-3y=1
11x=22.......x=22/11.............. x=2
if x=2
2x+y=7
2(2)+y=7
4 +y=7
y=7-4
y=3
solution:
x=2 y=3
Answer:
Option A is correct.
Step-by-step explanation:
Between B and C, the value of height (y) remains constant, as shown as a horizontal line on the graph.
Answer:
75 > x/15
Step-by-step explanation:
Step 1: Mulitply the 15 on both sides in order to get the x by it self.
Step 2: Simplify. 75 x (15) >x/15 x (15)
Step 3: The 15 on the right hand side cancels out leaving the x by itself.
Final Answr: 1125 > x which translates to<em><u> x < 1125</u></em>
Answer:
The interior and exterior angles total 180
3
x
+
(
x+
20
)
=
180
4
x
+
20
=
180
4
x
=
160
x
=
40
So the interior angle is 120 and the exterior is 60
360 divided by the exterior angle = number of sides
360
60
=6
6 sides,
6
×
120
=720 in total
720
180
=4
4 triangles
Yes if he cut at serein angle and with precision