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3 years ago

Which ordered pair is a solution of 3y - 4x = 2?

Mathematics

1 answer:

natima [27]3 years ago

6 0

Answer:

(4,6)

Step-by-step explanation:

There are infinitely many points which satisfy this

One of them could be (4,6)

3(6) - 4(4) = 2

18 - 16 = 2

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Marat540 [252]

Answer:

800$

Step-by-step explanation:

640/80=8

8=1% so

8x100=800

100%=800

5 0

2 years ago

the ratio of staceys money to toms money is 5:3 if stacy has $15 how much money do stacy and tom have togther?

alexandr1967 [171]

Answer:

24 $

Step-by-step explanation:

5 times 3 is 15

3 times 3 is 9

15 plus 9

=24

YUH

6 0

3 years ago

Solve the system of equations -3x+7y=-18 and 4x-4y=8 by combining the equations.

Aleksandr-060686 [28]

Answer:

$\huge \colorbox{red}{(x,y)=(-1,-3)}$

Step-by-step explanation:

multiply first equation by 4 and second by 3 respectively:

$\begin{cases} \displaystyle - 12x + 28y = - 72 \\ \: \: \displaystyle \: 12x - 12y = 24 \end{cases}$

combine the equations:

$\underline{ \begin{cases} \displaystyle - 12x + 28y = - 72 \\ \: \: \displaystyle \: 12x - 12y = 24 \end{cases}} \\ \displaystyle16y = - 48$

divide both sides by -48:

$\displaystyle \: \frac{16y}{16} = \frac{ - 48}{16} \\ y = - 3$

substitute the value of y to the second equation

$\displaystyle \: 4x - 4. - 3 = 8$

simplify multiplication:

$\displaystyle \: 4x + 12 = 8$

cancel 12 from both sides:

$\displaystyle \: 4x = - 4$

divide both sides by 4

$\displaystyle \: \frac{4x}{4} = \frac{ - 4}{4} \\ x = - 1$

therefore our solution is

$\displaystyle (x,y)=(-1,-3)$

4 0

3 years ago

Read 2 more answers

Please help with this one question thank you! <br> Show all work too please!

photoshop1234 [79]

Match the letters. Here's all I can think of:
PQ = TS
QR = SR
PR = TR
Angle P = Angle T
Angle Q = Angle S
Angle R = Angle R

Have an awesome day! :)

4 0

3 years ago

Megan uses 2/3 cup of almonds to make 4 cups of trail mix. Using the same porportion,how many cups of almonds would Megan need t

Viktor [21]

Okay so let's make this fraction bigger. 2/3 x 2 would equal 4/6 which means megan uses 1/6 per cup of trail mix. so if she wanted to make 9 batches of trail mix she would use 2 1/6 but let's make that into an improper fraction.. aka 13/6 .. we cannot simplify that so megan would need 2 1/6 cups of almonds

8 0

3 years ago