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2 years ago

Help ;-; Im almost overdue and I'n only on Q.13/24

Mathematics

2 answers:

Mamont248 [21]2 years ago

8 0

C is the correct answer you flip the numbers around

jolli1 [7]2 years ago

7 0

Answer: C (-7/18)

Step-by-step explanation: you flip the denominator and numerator and keep the negative

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Will mark brainliest

Vedmedyk [2.9K]

Answer:

adding both equations

4x+9y=5

-4x+7y=11

+ + =+

________

0 +16y=16

y=1

putting the value of y in first eqn

4x+9×1=5

4x=5-9

4x=-4

x=-1

so the x is -1 and y is 1

6 0

2 years ago

If LN = 6x - 5, LM = x + 7, and MN = 3x + 20, find MN

Ostrovityanka [42]

Answer:

Step-by-step explanation:

LM + MN = LN

x + 7 + 3x + 20 = 6x - 5

4x + 27 = 6x - 5

-4x -4x

27 = 2x - 5

+5 +5

32 = 2x

÷2 ÷2

16 = x

MN: 3x + 20

3(16) + 20

48 + 20

5 0

3 years ago

Slove for y<br> 9/4y-12=1/4y-4

mariarad [96]

Answer:

Believe

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

I WILL GIVE BRAINLIEST!

Natasha_Volkova [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Help solve pls ^-^

Papessa [141]

Step-by-step explanation:

$1.\ x-9.5=1.23\qquad\text{add 9.5 to both sides}\\\\\boxed{x=10.73}\\\\2.\ k-4.3=12\qquad\text{add 4.3 to both sides}\\\\\boxed{k=16.3}\\\\3.\ r-20=32\qquad\text{add 20 to both sides}\\\\\boxed{r=52}\\\\4.\ d-10=25\qquad\text{add 10 to both sides}\\\\\boxed{d=35}\\\\5.\ n-(-8)=-18\\\\n+8=-18\qquad\text{subtract 8 from both sides}\\\\\boxed{n=26}\\\\6.\ c-(-2.6)=-14.9\\\\c+2.6=-14.9\qquad\text{subtract 2.6 from both sides}\\\\\boxed{c=-17.5}$

8 0

2 years ago