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prohojiy [21]
3 years ago
12

The difference when 7 less than a number is subtracted from twice the number 12. What is that number?

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
6 0

Answer:

The number is 19

Step-by-step explanation:

7 less than a number = x - 7

2x - x - 7 = 12

Subtract x from 2x

x - 7 = 12

Add 7 to both sides of the equation

x = 19

The number is 19

Hope this helps :)

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An altitude is drawn from the vertex of an isosceles triangle, forming a right angle
romanna [79]

Answer:

  • 54 in

Step-by-step explanation:

Use Pythagorean to find the missing side x of the triangle.

<u>It is a hypotenuse with other sides 18 in and half of 15 in:</u>

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<u>The perimeter is:</u>

  • P = 2*19.5 + 15 = 54
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2 years ago
The lengths in centimeters of four line segments are shown below 3.1,3.5,3 1/5, 4.2 which list shows the lengths in order from l
goblinko [34]

ok i think your answer will be from least to greatest it would be this 3 1/5, 3.1, 3.5, 4.2

Hope i helped let me know if i got it right if not i am very sorry.

7 0
3 years ago
Please help me <br> Find f(-4)
Katyanochek1 [597]
As x < 3, you would use the equation x^{2} -5
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5 0
2 years ago
27 over X =3 and 5y = 35 what is the value of <br> X• Y?
diamong [38]

Answer:

63

Step-by-step explanation:

\frac{27}{x} = 3

divide, 27 ÷ 3

you'll get 9, so

x = 9

Next part

5y = 35

divide both sides by 5 to isolate y,

5y ÷ 5 = 35 ÷ 5

=

y = 7

So

x = 9 and y = 7

Then let's add the numbers to our equation ( x × y)

9 × 7

=

63

7 0
3 years ago
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