3 years ago

Valor de la siguiente expresión |9-15|=

Mathematics

1 answer:

tester [92]3 years ago

8 0

It would basically be 15-9 and not a negative so those two lines turn it into the opposite

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Which ordered pair is a solution to the inequality 7x-3y>10?

OlgaM077 [116]

it ain't possible.

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3 years ago

Ifn || m, find the value of x and the value of y.

Marat540 [252]

Answer: Option C

$y=5$ , $x=10$

Step-by-step explanation:

If the lines m and n are parallel then the large triangle and the small triangle are similar triangles, because they have equal angles.

By definition for similar triangles it is satisfied that if they have sides of length a, b, c and a', b', c' then:

$\frac{a}{a'}=\frac{b}{b'} =\frac{c}{c'}$

In this case

$a = 12\\a' = 4\\c = 15\\c' = y$

So:

$\frac{12}{4}=\frac{15}{y}$

Now solve the equation for the variable y

$3=\frac{15}{y}$

$y=\frac{15}{3}$

$y=5$

We know that

$x+y=15$ and $y=5$

Then

$x+5=15$

$x=10$

Finally the answer is:

$y=5$ , $x=10$

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3 years ago

What is the value of 4 in the number 745?

Nadya [2.5K]

<span>We need to find the value of 4 in the given number which is 745:
To be able to get the value of 4, we need to get familiar to each digit’s place value.</span> <span>=> Let us give the value of each digit first.
=> 5 = placed in one’s value
=> 4 = placed in tens value
=> 7 = placed in hundreds value

Thus,
=> 745 = 700 + 40 + 5

Therefore the value of 4 in 745 is tens or 40.

</span>

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2. .................................. it's 2

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Read 2 more answers

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svp [43]

Answer:

total mass is 80

60% of 80 = 48

aka 24 (30%) x2

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2 years ago