Answer:
2 and 2/5
Step-by-step explanation:
have a great day :D
Answer: (7,3)
Step-by-step explanation:
<u>[Please check]:</u> I decoded the equations as follows:
3x-4y=9 and −5x+4y=-23
We can solve this by either of two methods: Algebra and graphing.
<u>Algebra:</u>
Add the two equations:
3x-4y=9
<u> −5x+4y=-23</u>
-2x = -14
x = 7
Use x=7 to solve for y:
3x-4y=9
3(7)-4y=9
21 -4y = 9
-4y = -12
y = 3
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The solution is (7,3)
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<u>Graphing:</u>
See the attached graph. The lines intersect at (7,3)
Average speed = (1/2) (beginning speed + ending speed)
= (1/2) ( 13 m/s + 30 m/s )
= (1/2) ( 43 m/s )
= 21.5 m/s
Answer: 141
Step-by-step explanation:
23 1/2 *6=141
2+1 is 21 because 2 and 1 make 21 so it’s 21