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Naya [18.7K]
3 years ago
8

Solve the system of linear equations by substitution. 2x-y=3 x+5y=14

Mathematics
1 answer:
adoni [48]3 years ago
4 0
Let 2x – y = 3 ——— equation 1

Let x + 5y = 14 ——— equation 2

Making x the subject in eqn 1, = x = y + 3 / 2 ——— eqn 3

• Put eqn 3 in eqn 2

(y + 3 / 2) + 5y = 14

6y = 14 – 3/2

6y = 25/2

y = 25/12

• put y = 25/12 in eqn 3

x = (25/12 + 3/2)

x = 43/12
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beks73 [17]

Answer:

The ratio of the amount of flour to the amount of buttermilk=99:1

Step-by-step explanation:

Step 1: Determine quantity for each recipe

Quantity of flour=66 cups

Quantity of buttermilk=2/3 cups

Step 2: Calculate the total quantity of recipe

The expression for the total quantity is;

T=f+b

where;

T=total quantity of recipe

f=quantity of flour

b=quantity of buttermilk

In our case;

T=unknown

f=66 cups

b=2/3 cups

replacing;

T=(66)+(2/3)=66 2/3 cups

Step 3: Determine fraction of each

fraction of buttermilk=(2/3)/(66 2/3)=1/100

fraction of flour=66/(66 2/3)=99/100

Step 4: Determine ratio of flour to buttermilk

Amount of flour:amount of buttermilk

(99/100):(1/100)

The ratio of the amount of flour to the amount of buttermilk=99:1

7 0
3 years ago
Find the center-radius form of the equation of the circle described.
Kitty [74]

Answer:

Correct answer:  (x-√2)² + (y-√5)² = 3

Step-by-step explanation:

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The canonical or cartesian form of the equation of the circle is:

( x-p )² + ( y-q )² = r²  

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God is with you!!!

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FromTheMoon [43]

Answer:

(0,3)

Step-by-step explanation:

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8 0
3 years ago
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bearhunter [10]

Answer:

81/4

Step-by-step explanation:

I know this because I did this before

7 0
3 years ago
Read 2 more answers
Pls help me out I might give you something
Savatey [412]
Bro I hate math tooo
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