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Semmy [17]
3 years ago
9

- 2X +3Y=7 5x+8y=-2 Solution=(_,_)

Mathematics
1 answer:
Leya [2.2K]3 years ago
3 0

Answer:

The solution is the point (-2,1)

Step-by-step explanation:

we have

-2x+3y=7 ----> equation A

5x+8y=-2 ----> equation B

Solve the system of equations by graphing

Remember that the solution of the system is the intersection point both lines

using a graphing tool

The solution is the point (-2,1)

see the attached figure

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Questions are in file/pictures! <br><br> (as you can see all my questions are from math lol)
77julia77 [94]

Answer:

the first one would be 12 square feet

the second one would be 2961$

and the third one would be 125%

Step-by-step explanation:

i took the test

5 0
3 years ago
15h - m = 13h + q pleas helppp
tensa zangetsu [6.8K]
I don’t know what I’m solving for so I solved for h and with that it should be h=q/2+m/2

Explanation:

15h-m=13h+q
-13h -13h
———————-
2h-m=q
+m +m
———————-
2h=q+m
/2 /2 /2
———————-
H=q/2+m/2

8 0
3 years ago
Read 2 more answers
I need some help please
Veronika [31]
The definition of the tangent function tells you
   tan(angle) = (300 ft) / (distance to mountain)
This equation can be rearranged to
   (distance to mountain) = (300 ft) / tan(angle)

For the far end of the river,
   distance to far end = (300 ft) / tan(24°) ≈ 673.8 ft

For the near end of the river
   distance to near end = (300 ft) / tan(40°) ≈ 357.5 ft

Then the width of the river can be calculated by finding the difference of these distances:
   width of river = distance to far end - distance to near end
   width of river = 673.8 ft - 357.5 ft
   width of river = 316.3 ft

The appropriate answer choice is
   316 ft.
8 0
3 years ago
I don't get this... someone explain this plum thing please...... Before a plum is dried to become a prune, it is 92% water. A pr
taurus [48]

Answer:

21.74 But if it tells you to round I would round to 21 lbs

Step-by-step explanation:

its basically just a ratio of 92 to 20

92/20=4.6

92-20=72% the amount that is lost

so given that the plum is 100 lbs we know that 72% is depleted

(72/92 = .78)X100= 78 lbs depleted

Lastly 100-78 =22 for the remaining weight of the prunes.

4 0
3 years ago
Find the central angle measure
Mariana [72]

Answer:

76

Step-by-step explanation

The angle across from 104 would be the same Leaving 152 left of 360 and 152 divided by 2 is 76

7 0
3 years ago
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