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RSB [31]
3 years ago
6

Katarina wrote the standard form of a linear equation as 4x – y = 8. Sofiya told her that the equation was not yet in standard f

orm and gave her the right advice for how to fix it. What advice did Sofiya give to Katarina?
Mathematics
2 answers:
Vesna [10]3 years ago
6 0
Sofiya advice is to change the linear equation to y-intercept (y=mx+b) form so it will be y=4x-8
mestny [16]3 years ago
5 0
Standard form (that I learned) is ax+by=c where a and b and c are integers and a is positive
4x-1y=8 is already in standard form

there is another 'standard form' in the form
ax+by+c=0
so then it would be
4x-1y-8=0
neither y=mx+b nor y-y1=m(x-x1) is standard form

the advice would be to either put a 1 in front of the y or to minus 8 from both sides, depends on what form you use
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What is the volume of this triangular prism? A triangular prism. The triangular base has a base of 28 centimeters and height of
mamaluj [8]

Answer:

The volume of the triangular prism is 5676.16 cm³

Step-by-step explanation:

The area of the triangular base A = bh/2 where b = base = 28 cm and h = height = 22.4 cm.

Now, the volume of the triangular prism, V = area of triangular base, A × height of prism, h'

V = Ah' where h = height of prism = 18.1 cm

So, V = bhh'/2

Substituting the values of the variables into the equation for V, we have

V = bhh'/2

V = 28 cm × 22.4 cm × 18.1 cm/2

V = 14 cm × 22.4 cm × 18.1 cm

V = 5676.16 cm³

So, the volume of the triangular prism is 5676.16 cm³

3 0
3 years ago
Read 2 more answers
A pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters o
ladessa [460]
X = amount of the 18% solution

y = amount of the 40% solution

we know the 18% solution has only 18% of alcohol, the rest is maybe water or something, now, how many liters is 18%?  well, 18% of anything is just (18/100) * anything, so, 18% of x is just (18/100) *x or 0.18x, and that's how many liters are there.

likewise, how many liters are there in the 40% solution?  well, (40/100) * y, or 0.4y, that many.

we know the mixture has to yield 10 liters at 20% alcohol, how many liters of only alcohol is that?  well, (20/100) * 10, or 2 liters.

\bf \begin{array}{lccclll}
&\stackrel{liters}{amount}&\stackrel{alcohol~\%}{quantity}&\stackrel{liters}{alcohol}\\
&------&------&------\\
\textit{18\% solution}&x&0.18&0.18x\\
\textit{40\% solution}&y&0.40&0.4y\\
------&------&------&------\\
mixture&10&0.20&2
\end{array}

\bf \begin{cases}
x+y=10\implies \boxed{y}=10-x\\
0.18x+0.4y=2\\
----------\\
0.18x+0.4\left( \boxed{10-x} \right)=2
\end{cases}
\\\\\\
0.18x-0.4x+4=2\implies -0.22x=-2
\\\\\\
x=\cfrac{-2}{-0.22}\implies x=\cfrac{100}{11}\implies x=9\frac{1}{11}

how much of the 40% solution?  well y = 10 - x
3 0
4 years ago
Will mark brainliest for whoever answers
Veseljchak [2.6K]
I can add u to a snap gc where we help each other with work
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3 years ago
Who is Muhammad Ali Jinnah
nirvana33 [79]

Answer:

Not. Math.. Mohammad Ali Jinnah, born Mahomedali Jinnahbhai was a Pakistani politician. A lawyer and states man, he is considered the founding father of Pakistan. He was initially an Indian nationalist and then an Islamic nationalist in British India. 

3 0
3 years ago
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Select the correct answer. Fredrick manages a band and sings lead vocals. The band charges $700 per concert. Fredrick receives $
Kisachek [45]

Answer:

A. $105

Step-by-step explanation:

Given

total charge=  $700 per concert

<u>solution</u>

If Fredrick receives $175 of that money, the balance will be

 $700-$175= $525

The balance will be shared by the 5 members

<em>Hence each of them will take</em>

525/5=$105

7 0
3 years ago
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