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astra-53 [7]
3 years ago
7

WILL GIVE BRAINLIEST!!!

Mathematics
1 answer:
ankoles [38]3 years ago
6 0

Answer:

C. (-3, 1)

Step-by-step explanation:

- x + y = 4 \\  \therefore \:  y = x + 4...(1) \\ \& \:  3x - 4y =  - 13....(2) \\ substituting \: y = x + 4 \: in \: equation \: (2) \\ 3x - 4(x + 4) =  - 13 \\   3x - 4x - 16 =  - 13 \\  - x = 16 - 13 \\  - x = 3 \\  \huge \red{ \boxed{x =  - 3}} \\ plug \: x =  - 3 \: in \: equation \: (1) \\ y =  - 3 + 4 \\ \huge \purple{ \boxed{y = 1}} \\  \\  \orange{ \boxed{ \bold {\therefore \: (x, \:  \: y) = ( - 3, \:  \: 1)} }}

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X + 3= -x -5<br><br>what's x?​
Karo-lina-s [1.5K]

Answer:

-4

Step-by-step explanation:

4 0
3 years ago
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Craig saved $3,655.11, and Yegar saved $4,190.67. How much more did Yegar save than Craig? A. $536.66
STatiana [176]
This is a simple subtraction problem, but since you are in Elementary School, I will help you out.

Subtract $4,190.67 by $3,655.11 (remember, the bigger number should come first)

 4,190.67
<span>-3,655.11
</span>         ...56

When a small number is on top of a bigger number, borrow 1 number from the number next to it (in this case, 0 is smaller than 5, so you must borrow 1 number from 9, making it to 8), then add the small number by 10 (0+0=10)
<span>Then we continue...

</span> 4,190.67
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Do the same thing with 4 and 1.

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6 0
3 years ago
Use the geometric mean (altitude) theorem. What is the value of m?
Ludmilka [50]
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4 0
3 years ago
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butalik [34]

Answer:$39

Step-by-step explanation:

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7 0
3 years ago
GIVING BRAINLIST!!!
natali 33 [55]

The correct answer is (5,-7) Hope that helps!

8 0
3 years ago
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