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Brilliant_brown [7]

1 year ago

10

Danni thinks of a number. She subtracts 2 then multiples the result by 8. The answer is the same as subtracting 5 from the numbe

r then multiplying by 16. What is the number did Danni think of?

1 answer:

Elena L [17]1 year ago

8 0

Answer:

8

Step-by-step explanation:

let the number=x

8(x-2)=16(x-5)

divide by 8

x-2=2(x-5)

x-2=2x-10

2x-x=-2+10

x=8

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Property of equality used to solve subtractior<br> equations

Margarita [4]

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3 years ago

The local baseball team won the national championship last year. At the start of the baseball season, shirts signed by the team

LenKa [72]

Answer:

Step-by-step explanation:

Multiplier: -175/3 Decrease: 23⅓ %

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Where m is the no.

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3 0

3 years ago

Angle DCA is 120°. What percent of the circle's area does this section represent?

dolphi86 [110]

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120 x
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4 0

3 years ago

Enter the symbol (<, >, or =) that correctly completes this comparison.<br> 0.147 0 0.174

prohojiy [21]

Answer:

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6 0

2 years ago

Anyone can help please and quickkkk

melomori [17]

The values of x, y, and z are 1, 2, and 3 respectively after using the substitution method.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have a linear equation in three variable:

2x + 3y - z = 5 ...(1)

4x - y - z = -1 ...(2)

x + 4y + z = 12 ...(3)

$\rm \mathrm{Substitute\:}x=\dfrac{5-3y+z}{2}$ (from the equation 1 and 2)

After solving:

$\rm \begin{bmatrix}-7y+z+10=-1\\ \dfrac{5y+3z+5}{2}=12\end{bmatrix}$

From the above, two equations:
y =2

z =3

Plug the above values in equation 1

x = 1

Thus, the values of x, y, and z are 1, 2, and 3 respectively after using the substitution method.

Learn more about the linear equation here:

brainly.com/question/11897796

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5 0

2 years ago