3 years ago

It said it was wrong

1 answer:

5 0

Answer:

well then, what was right?

Step-by-step explanation:

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olga2289 [7]

Ok so
24=30%
find 100%
24=30%
diivde by 3
8=10%
multiply 10
80=100%

answe ris 80 coins

8 0

3 years ago

ale4655 [162]

Answer:

1.(x+y)²

2. (x-4)²

3. (4a²-3b²)²

6 0

3 years ago

HACTEHA [7]

That would just be 5 inches

3 0

4 years ago

Damm [24]

Answer:

81 + 81 + 10 aka 172

Step-by-step explanation:

5 0

3 years ago

jasenka [17]

Multiply the equation 2x + y = 1 by 3 to obtain same coefficients of y.

$\begin{gathered} (2x+y=1)\times3 \\ 3\cdot2x+3\cdot y=3\cdot1 \\ 6x+3y=3 \end{gathered}$

Substract the equation 3x + 3y = 15 from 6x + 3y = 3 to eliminate the terms of y.

$\begin{gathered} 6x+3y-(3x+3y)=3-15 \\ 3x=-12 \\ x=-\frac{12}{3} \\ =-4 \end{gathered}$

Substitute -4 for x in the equation 2x + y = 1 to obtain the value of y.

$\begin{gathered} 2\cdot(-4)+y=1 \\ -8+y=1 \\ y=1+8 \\ =9 \end{gathered}$

So solution of equations is (-4,9).

8 0

1 year ago