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3 years ago

Please help me with these two problems, and I would also like a clear explanation. Thank you!

Mathematics

1 answer:

LiRa [457]3 years ago

3 0

Step-by-step explanation:

add all those parthesis before the 3 dots then all those after the3 dots then add the answers I think pretty sure haven't done it in awhile

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Please help! I need the answer!

Anon25 [30]

Answer: 25

Step-by-step explanation:

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4 years ago

What is 6 3/4 - 1 5/8

noname [10]

It is 5.125 (although idk if u have to make it in fraction form)

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3 years ago

Are the ratio 5:6 and 1/2 equivalent

kvv77 [185]

No because they aren’t like equaled up together in any way

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3 years ago

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Which ordered pair is the best estimate for the solution of the system of equations? y=−2/5x−2y=5x+1

lutik1710 [3]

Option a: $(-0.5,-1.75)$ is the solution to the system of equations.

Explanation:

The equations are $y=-\frac{2}{5} x-2$ and $y=5 x+1$

Equating these two equations, we have,

$-\frac{2}{5} x-2=5 x+1$

Taking LCM and multiplying both sides by 5, we get,

$-2 x-10=25 x+5$

Simplifying , we get,

$\begin{aligned}-10-5 &=25 x+2 \\-15 &=27 x \\-\frac{15}{27} &=x \\-\frac{5}{9} &=x\end{aligned}$

Substituting the value of x in $y=5 x+1$ , we get,

$\begin{aligned}&y=5\left(-\frac{5}{9}\right)+1\\&y=-\frac{25}{9}+1\\&y=-\frac{16}{9}\end{aligned}$

Thus, the solution is $\left(-\frac{5}{9},-\frac{16}{9}\right)$

Changing the solution from fraction to decimal, we get, $(-0.556,-1.778)$

Thus, the solution is $(-0.5,-1.75)$

Hence, option a is the correct answer.

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3 years ago

Lets go pls help tons of points

icang [17]

Answer:

take down this answer

Step-by-step explanation:

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3 years ago

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