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erastovalidia [21]
3 years ago
14

Y=-3x+5 5x-4y=-3 pls help

Mathematics
2 answers:
salantis [7]3 years ago
7 0

Hello!

\large\boxed{x = 1, y = 2}

We can solve this system using substitution.

Since y = -3x + 5, we can substitute this into the following equation:

5x - 4(-3x + 5) = -3

Simplify:

5x - 4(-3x) - 4(5) = -3

5x + 12x - 20 = -3

Combine like terms:

17x - 20 = -3

Add 20 to both sides:

17x = 17

x = 1

Substitute to find y:

y = -3(1) + 5

y = -3 + 5

y = 2

Solution: (1, 2)

Wittaler [7]3 years ago
6 0

Answer:

(1,2) x=1; y=2

Step-by-step explanation:

We can plug the value of Y into the second equation like so:

5x-4(-3x+5)=-3\\5x+12x-20=-3\\17x=-3+20\\17x=17\\x=1

Then we can plug the value of x into the first equation.

y=-3+5\\y=2

(1,2)

Hope this helped! Please mark brainliest :)

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Free_Kalibri [48]
From what you are describing you should just simply plug in the x and y coordinates.

-2(-2)+4(1)=8

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6 0
3 years ago
PLS HELP.....
Gemiola [76]
The second one because Idk I’m just guessing lol it doesn’t look like it should be there though
3 0
3 years ago
Point M is on line segment LN. Given LN = 9, MN = 4x, and LM=5x
andrew-mc [135]

Answer:

MN = 4

Step-by-step explanation:

Given that L, M, N are collinear,

LN = 9,

MN = 4x

LM = 5x

Required:

Length of MN

SOLUTION:

To calculate the numerical length of MN, we need to find the value of x.

To find the value of x, generate an equation to solve for x as follows:

LM + MN = LN (segment addition postulate)

5x + 4x = 9 (substitution)

Solve for x

9x = 9

Divide both sides by 9

\frac{9x}{9} = \frac{9}{9}

x = 1

MN = 4x

plug in the value of x

MN = 4(1) = 4

5 0
3 years ago
Mrs. Jones wants to know how long it will take an investment of $500 to earn $150 in interest if the yearly interest rate is 5.5
vodka [1.7K]

Answer:

big brain math is hard

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Taika has 320.00 in the bank. He spends 5% on a gift for his sister. How much did he spend?
Aliun [14]

Answer:

He spent 16 dollars on his sisters gift.

Step-by-step explanation:

You can do 320 x .05 which will equal 16.

Have an awesome day and please consider brainliest <3! Bye!!

7 0
3 years ago
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