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RSB [31]
3 years ago
12

What is the value of x in the equation Negative two-fifths x minus 2 = 18?

Mathematics
2 answers:
e-lub [12.9K]3 years ago
7 0

Answer:

50

Step-by-step explanation:

lara [203]3 years ago
6 0
Answer: 50

Explanation: 2/5x - 2 = 18

Divide the fraction to make a decimal
2 ÷ 5=0.4

0.4x-2=18

0.4x=20 Add 2 to 18

20 ÷ 0.4=x Divide 20 by 0.4 to get x

x=50


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A triangle has a hypotenuse that is 60 inches, and the length of one of its legs is 36 inches. What is the length, in inches, of
vodka [1.7K]

Answer:

48

Step-by-step explanation:

think of the a squared plus b squared equals c squared. plug in the 36 in either b or a. then plug in the 60 in c's spot. solve and get 48. you can check the answer by solving 48 squared plus 36 squared equals 60 squared. both sides are equal and both come out to be the 3600

4 0
3 years ago
1 1/5 divided by /10
ZanzabumX [31]

Answer:

<u>0.12, 6/50</u> are the answers.

Step-by-step explanation:

1/5 = 0.2

1.2/10 = 0.12

0.12 = 6/50

Have a nice day!

6 0
3 years ago
Read 2 more answers
Solve 5x²+9x-12=0 by factoring
asambeis [7]

Answer:

  x = -3, 4/5

Step-by-step explanation:

To factor the equation, you need to find factors of (5)(-12) that have a sum of (+9).

  (5)(-12) = -60 = 60(-1) = 30(-2) = 15(-4) = 12(-5) = 10(-6)

The factors 15 and -4 have a sum of 9, so we can factor the equation as ...

  5x² +15x -4x -12 = 0

  5x(x +3) -4(x +3) = 0  . . . .  factor pairs of terms

  (5x -4)(x +3) = 0

The solutions are the values of x that make these factors zero:

  5x -4 = 0   ⇒   x = 4/5

  x +3 = 0   ⇒   x = -3

The solutions are x = -3 or 4/5.

5 0
4 years ago
Rafael is taking a test that contains a section of 12 true-false questions. How many of the possible groups of answers to these
Klio2033 [76]
Answer: There are 495 possible different sets of answers the could contain exactly 8 correct answers of false.

Basically, we are looking for the number of different ways of selecting 8 objects out of a set of 12 objects. Our objects are answers of false and the set is the test.

This is a combination problem. The formula would be:

12! / (8! x 4!) = 495
8 0
3 years ago
Convert 17/100 into a decimal
Korolek [52]
If you would like to convert 17/100 into a decimal, you can do this using the following step:

17/100 = 0.17

The correct result would be 0.17.
6 0
3 years ago
Read 2 more answers
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