3 years ago

how many solutions does −5y=−15x+40 and y=3x−8 have?

Mathematics

2 answers:

ra1l [238]3 years ago

7 0

There are only fifithteen solution

Salsk061 [2.6K]3 years ago

5 0

Zero Solutions because -5y=-15x+40 is the same as y=3x-8 which is also the same as the second equation

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What number could replace kkk below? \dfrac{k}{100} = \dfrac{1}{10} 100 k = 10 1 start fraction, k, divided by, 100, end fra

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Answer:

Step-by-step explanation:

Given the equation;

$\dfrac{k}{100} = \dfrac{1}{10}$

We are to find the value of k.

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Hence the value of k is 10

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2 years ago

Hey what's the answer ?<br><img src="https://tex.z-dn.net/?f=%28%20%7By%7D%5E%7B2%7D%20%20%2B%20%20%5Cfrac%7B5%7D%7B7%7D%20%29%2

3241004551 [841]

Answer: $y^4$ + $\frac{-73}{35}y^2$ - $2$

Step-by-step explanation:

Use FOIL:

$y^4$ + $\frac{-14}{5}y^2$ + $\frac{5}{7}y^2$ + $\frac{-70}{35}$

Make $\frac{-14}{5}y^2$ and $\frac{5}{7}y^2$ have the same numerator:

$\frac{-14*7}{5*7}y^2 =\frac{-98}{35}y^2$

$\frac{5*5}{7*5} y^2=\frac{25}{35} y^2$

Then add like terms and simplify:

$y^4$ + $\frac{-98}{35}y^2$ + $\frac{25}{35} y^2$ + $\frac{-70}{35}$

$y^4$ + $\frac{-73}{35}y^2$ - $2$

7 0

2 years ago

Read 2 more answers

​ ​ ​ ​​how many solutions does ​−5y=−15x+40 and ​y=3x−8 ​​have?

how many solutions does −5y=−15x+40 and y=3x−8 have?