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const2013 [10]
2 years ago
7

If 3 – 5x = 2, then x =

Mathematics
2 answers:
Fofino [41]2 years ago
8 0

3-5x=2

or, -5x=-1

or, x= 1/5

mixas84 [53]2 years ago
7 0

Answer:

x=.2

Step-by-step explanation:

3-5x=2

add 5x to both sides

-5x+5x=0

2+5x=2+5x

3=2+5x

subtract 2 from both sides

1=5x

divide each side by 5

.2=x

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Write 7/12 as a decimal. If necessary, use a bar to indicate which digit or group of digits repeats.
rodikova [14]

Answer:

0.538

Step-by-step explanation:

7 divided by 12 = 0.538

5 0
2 years ago
Suppose X is normally distributed with mean 20 and standard deviation 4, find the value x0 such that P(X ≥ x0) = 0.975.
abruzzese [7]

Answer:

12.16

Step-by-step explanation:

From your question, we have the following information

Mean = u = 20

Standard deviation sd = 4

P(X>Xo) = 0.975

1-0.975 = 0.025

P(z<Xo-20/4) = 0.025

Xo-20/4 = -1.96

We cross multiply

Xo - 20 = -1.96 x 4

Xo - 20 = -7.84

Xo = -7.84+30

Xo = 12.16

12.16 is the value of Xo and therefore the answer to this question.

Thank you!

7 0
3 years ago
4x+8=7.2+5x solve for x​
kondaur [170]

Answer:

x=0.8

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

4x+8=5x+7.2

Step 2: Subtract 5x from both sides.

4x+8−5x=5x+7.2−5x

−x+8=7.2

Step 3: Subtract 8 from both sides.

−x+8−8=7.2−8

−x=−0.8

4 0
3 years ago
Read 2 more answers
Solve d = c/pi solve for pi
kondaur [170]
Πd = c/π

Cross multiply

π²d = c

Divide both side by d

π²d/d = c/d

π² = c/d

Take the square root of both side

Result: π = √(c/d)
4 0
3 years ago
45 is 130% of what number?
daser333 [38]

Answer:

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2

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3 years ago
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