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REY [17]
3 years ago
8

Complete the missing value in the solution to the equation.

Mathematics
1 answer:
snow_lady [41]3 years ago
3 0

Answer:

y = − 1

Hope this helps!

Step-by-step explanation:

Alright so this is our equation:

y − 3   =   2 ( x − 1 )

We will substitute:

x = − 1

So now our equation looks like this:

y − 3   =   2 ( −1 − 1 )

Now we will get rid of the parentheses:

y − 3    =   − 2 − 2

Solve the left side:

y − 3   =   − 4

Now add 3 on both sides to find out what y is:

y − 3   =   − 4

  +3         +3

Add:

y = − 1

Yay! We found our answer! Nice job everyone!

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Lady bird [3.3K]

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Step-by-step explanation:

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3 0
3 years ago
Complete the equation of variation where y varies inversely as x and y = 8 when x = 10.
melisa1 [442]
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y=k/x, we are given one point (10,8) so we can find the value of k, the constant of variation using those coordinates...

8=k/10  multiply both sides by 10

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y=80/x
5 0
3 years ago
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Answer:

427,350

Step-by-step explanation:

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3 years ago
What is the value of f(x) when x =0
kobusy [5.1K]

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Step-by-step explanation:

6 0
3 years ago
A metallugarist has an alloy with 6% titanium and an alloy with 20% titanium. He needs 100 grams of an alloy with 13% titanium.
dsp73
\bf \begin{array}{lccclllll}
&amount(g)&\textit{\% of titanium}&\textit{grams of titanium}\\
&-----&-----&-------\\
\textit{6\% alloy}&x&0.06&0.06\cdot  x\\
\textit{20\% alloy}&y&0.2&0.2\cdot  y\\
----&-----&-----&-----\\
mixture&100&0.13&100\cdot 0.13\to 13
\end{array}

so.. .whatever those amounts are, of "x" and "y", for the mixture,
they must add up to 100 grams, or x + y = 100

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thus \bf \begin{cases}
x+y=100\to y=\boxed{100-x}
\\\\
0.06x+0.2\boxed{y}=13
\end{cases}

do the substitution, and solve for "x",

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4 0
3 years ago
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