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3 years ago

10

Write the converse of the statement. If the converse is true, write true; if not true, provide a counterexample.

1 answer:

Murljashka [212]3 years ago

8 0

If $x^2=16$ then $x=4$ .

It's false, because if $x^2=16$ , then $x=4 \vee x=-4$

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If 24 books out of 60 are non-fiction what percent of books are fiction

sergiy2304 [10]

My guess is 3/10......because 24/60 is simplified to 3/10

6 0

3 years ago

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What is the sum of all integers from -2016 to 2016?

ololo11 [35]

Answer:

4032 integers.

Step-by-step explanation:

Lest start with -2016. There are 2016 integers from -2016 to 0. Then we see how many integers are from 0 to 2016. there are 2016. If you add them up, you get 4032.

6 0

3 years ago

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How do you find the area of a circle with the circumference?

Naya [18.7K]

Circumference = 2*pi*radius

find the radius using this formula.

then use this formula => area of circle = pi*radius*radius

put the value of the radius that you get with the first formula to find the area

hope it helps you

6 0

3 years ago

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.

$y-2+2=6+2$

∴ $y=8$

7 0

3 years ago

How can 52/9 be expressed as a decimal? <br><br> <br> <br> <br>

slava [35]

The answer would be about 5.8

4 0

3 years ago

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