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3 years ago

What are the y and x intercept of 3x-5y=15

Mathematics

1 answer:

kondor19780726 [428]3 years ago

5 0

Y-intercept: (0,-3)

x-intercept: (0,5)

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Nata [24]

Answer: 15, -8

Step-by-step explanation:

$u_2=7\\u_2=u_1+r\\u_3=u_1+2r\\u_4=u_1+3r\\\\u_1+u_2+u_3+u_4=4u_1+6r=12\\u_1+r=7\\\\$

$\left \{ \begin {array} {ccc|c|c}u_1+r&=&7&-4&-6\\4u_1+6r&=&12&1&1\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}2r&=&-16\\-2u_1&=&-30\\\end {array} \right.\\\\\\\left \{ \begin {array} {ccc}r&=&-8\\u_1&=&15\\\end {array} \right.\\\\\\Proof:\\u_1=15\\u_2=7\\u_3=-1\\u_4=-9\\sum=12\\$

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3 years ago

Is 5.39 rational or irrational

xeze [42]

Answer:

rational

Step-by-step explanation:

3 0

4 years ago

Read 2 more answers

Pls help stuck on big ideas math

beks73 [17]

Answer:

x = 15

Step-by-step explanation:

Substitute: -4/5x + 7 = -5

Rearrange unknown terms to the left side of the equation: -4/5x = -5 - 7

Calculate the sum or difference: -4/5x = -12

Divide both sides of the equation by the coefficient of variable: x = -12 × (-5/4)

Remove the parentheses: x = 12 × 5/4

Cross out the common factor: x = 3 × 5

Calculate the product or quotient: x = 15

So the answer is: x = 15

3 0

3 years ago

Does anyone know the answer to this question??

Step2247 [10]

C and then D because when you go outside and it’s cold then you know it’s cold

6 0

3 years ago

What value of x makes this equation true?<br> -12 + 5x = -24 + x

Alex

Answer:

Step-by-step explanation:

-12+5x=-24+x

4x=-12

x=-3

4 0

3 years ago