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3 years ago

14

Can someone please Simplify -|-5 + 2|

2 answers:

dsp733 years ago

8 0

Answer:

_|_5+2|

=_|_3|

=_3

is answer.

ella [17]3 years ago

7 0

The answer is -3. The two bars make the answer to -5 + 2 positive. (It was -3, but the absolute value is 3). However, the negative sign is then “multiplied” to the 3 as an imaginary -1 which gives you the answer of -3.

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3 years ago

the number of girls in a class is 10 more than the number of boys. if there are 36 students in all, how many girls are there in

Akimi4 [234]

Answer:

23 Girls

Step-by-step explanation:

23 plus 13 equals 36 and 23 is 10 more than 13.

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3 years ago

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How to solve the system of equation 500y-600x=2800 , 400y-400x=2400 by elimination

tatiyna

Answer:

$x=2$ and $y=8$

Step-by-step explanation:

Given:

Equation 1:

$500y-600x=2800$

Simplifying the above equation by dividing both sides by 100

$\frac{500y-600x}{100}=\frac{2800}{100}$

$\frac{500y}{100}-\frac{600x}{100}=28\\\\5y-6x=28$

Equation 2:

$400y-400x=2400$

Simplifying the above equation by dividing both sides by 400.

$\frac{400y-400x}{400}=\frac{2400}{400}$

$\frac{400y}{400}-\frac{400x}{400}=6\\\\y-x=6$

Now the system of equation is:

(1a) $5y-6x=28$

(2a) $y-x=6$

Solving by elimination

Multiplying equation (2a) with $-5$

$-5(y-x)=-5\times 6$

(2b) $-5y+5x=-30$

Adding equations (1a) and (2b) in order to eliminate $y$

$5y-6x=28$

+ $-5y+5x=-30$

We get $-x=-2$

∴ $x=2$

Plugging $x=2$ in equation (2a).

$y-2=6$

Adding $2$ both sides.

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3 years ago

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Answer:

NOT PROPORTIONAL

Step-by-step explanation:

The given two fractions are: $\frac{5}{8}$ and $\frac{8}{10}$ .

Proportional fractions are those which have the same value when to reduced to the simplest form.

Consider two fractions $\frac{p}{q}$ and $\frac{x}{y}$ .

We say they are proportional if $p : q = x : y$ .

Or, if $py = qx$ then we can say the fractions are proportional.

Here the fractions are: $\frac{5}{8}$ and $\frac{8}{10}$ .

LHS: 5 X 10 = 50.

RHS: 8 X 8 = 64.

Clearly they are not equal. So, we can say these two fractions are not proportional.

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3 years ago

What are the zeros of the function? f(x)=+-6x

Step2247 [10]

The function given is a line with one zero at the center (0,0)

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