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alekssr [168]
2 years ago
10

Solve the system by substitution. 4x + 2y = 10 x − y = 13

Mathematics
2 answers:
Rainbow [258]2 years ago
8 0

answer are attached in pic hope it's helpful for you

value of x =6

y =7

ziro4ka [17]2 years ago
5 0

Answer:

\boxed{\tt (6,-7)}

Step-by-step explanation:

\tt 4x + 2y = 10\\x - y = 13

First Let's solve for x in x-y=13

\tt x-y=13

Add y to both sides:

\tt x=13+y

Now, Substitute x=13+y into 4x+2y=10:-

Let x=13+y

\tt 4(13+y)+2y=10

\tt 52+6y=10

Now, let's solve for y in 52+6y=10:-

\tt 52+6y=10

Subtract 52 from both sides:-

\tt 6y=10-52

\tt 6y=-42

Divide both sides by 6:-

\tt \cfrac{6y}{6} =\cfrac{-42}{6}

\boxed{\tt y=-7}

Now, we'll Substitute y=-7 into to x=13+y to find "x":-

\tt x=13+y

\tt x=13+-7

\boxed{\tt x=6}

___

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jeka57 [31]

Answer:

245.1361868

Step-by-step explanation:

126               51.4

___    =        ____             126x100=12600      12600/51.4=245.1361868

 x                  100

6 0
3 years ago
Helen's house is located on a rectangular lot that is1 1-8 miles by 9/10 mile.Estimate the distance around the lot
klemol [59]

Answer: The distance around the lot is given by

4\frac{1}{20}\ miles

Step-by-step explanation:

Since we have given that

Length of rectangular lot is given by

1\frac{1}{8}\\\\=\frac{9}{8}\ miles

Width of rectangular lot is given by

\frac{9}{10}\ mile

We need to find the distance around the lot.

As we know the formula for "Perimeter of rectangle":

Perimeter=2(Length+Width)\\\\Perimeter=2(\frac{9}{8}+\frac{9}{10})\\\\Perimeter=2(\frac{45+36}{40})\\\\Perimeter=2\times \frac{81}{40}\\\\Perimeter=\frac{81}{20}\\\\Perimeter=4\frac{1}{20}\ miles

Hence, the distance around the lot is given by

4\frac{1}{20}\ miles


3 0
3 years ago
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Match the situation to the most appropriate graph #7
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Graph K. This is because the cost of a gallon of milk is not increasing constantly, as in a linear rate, but it has only increased a few times in a year. Therefore, graph K shows that a gallon of milk is a steady, unchanged price, then the cost rises and stays the same, then rises again and stays the same. So, it is not a linear graph because the cost of the milk is not going up at a constant rate.
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levacccp [35]

Answer:

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Step-by-step explanation:

Bank of Texas

A=P(1+rt)

P=$7,500

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$10,031.35

refer the pic

United Texas Bank

A=P(1+rt)

P=$7,500

r=8%

t=5 years

$10,500.00

refer the sec pic

6 0
2 years ago
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