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Alexxx [7]
3 years ago
7

-x + 5y = -17 -2x -5y = -4 using elimination

Mathematics
1 answer:
fomenos3 years ago
3 0
I'm pretty sure it's x=7
-3x=-21
x=7

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Please help!! will mark brainliest<br> 20pts
Marysya12 [62]

Answer:

  • FH = 34
  • ∠EIH = 62°

Step-by-step explanation:

EI = IG . . . . . . . . . . . .diagonals of a rectangle bisect each other

2x +7 = 6x -13 . . . . . substitute given expressions

20 = 4x . . . . . . . . . . add 13-2x

5 = x . . . . . . . . . .. . . divide by 4

EI = 2x+7 = 2·5 +7 = 17

FH = 2·EI = 2·17

FH = 34

__

∠IGF = ∠IFG = ∠IEH = ∠IHE = 59° . . . . mirror symmetric angles are congruent

∠EIH = 180° -∠IEH -∠IHE = 180° -2(59°)

∠EIH = 62°

7 0
3 years ago
A toy store’s percentage of markup is 25%. A modeltrain costs the store $120. Find themarkup.
Alex Ar [27]
The correct answer is letter B
5 0
3 years ago
How to evaluate this question
Harlamova29_29 [7]
The answer is 16

Refer image for working :-

Drop comments if any doubt arises.

3 0
2 years ago
Read 2 more answers
I think i got the answer but a second opinion would be greatly appreciated!
AlexFokin [52]

Answer:

Your answer would be B: 30 ft squared

Step-by-step explanation:

Find the area of the circle: 5.5 (radius) multiply it by itself then multiply that by 3.14 which gets you 94.985. Now find the area of the square which is 8*8 = 64. Subtract 64 from 94.985 and your answer will be 30.985. The questions asks for the approximate (estimate), so the closest one would be 30 ft squared

4 0
3 years ago
WhAt is the answer to 8.3x=41.5
maks197457 [2]
The "answer" is the number that 'x' must be
in order for that equation to be true.

To find it, just divide each side of the equation by  8.3 .

Then it'll say        x = 5 .
4 0
4 years ago
Read 2 more answers
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