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3 years ago

3(5x+2)=2(3x-6) help i need to show work and I have no idea how to do this

Mathematics

2 answers:

tester [92]3 years ago

8 0

Answer: its −2

Step-by-step explanation:

3*(5*x+2)-(2*(3*x-6))=0

Step by step solution :

STEP

Pulling out like terms

2.1 Pull out like factors :

3x - 6 = 3 • (x - 2)

Equation at the end of step

(3 • (5x + 2)) - 6 • (x - 2) = 0

STEP

Equation at the end of step 3

3 • (5x + 2) - 6 • (x - 2) = 0

STEP

Pulling out like terms

5.1 Pull out like factors :

9x + 18 = 9 • (x + 2)

Equation at the end of step

9 • (x + 2) = 0

STEP

Equations which are never true

6.1 Solve : 9 = 0

This equation has no solution.

A a non-zero constant never equals zero.

Solving a Single Variable Equation:

6.2 Solve : x+2 = 0

Subtract 2 from both sides of the equation :

x = -2

One solution was found :

x = -2

Fiesta28 [93]3 years ago

6 0

The answer is -2. Below are the steps.

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Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Lunna [17]

Answer:

3 days, 27

Step-by-step explanation:

After 3 days :

3³ = 27 belts
4(3) + 15 = 12 + 15 = 27 belts

After 3 days, the number of belts and wallets sold will be the same, equal to 27.

3 0

1 year ago

How many solutions does the equation x_1 +x_2+x_3+x_4+x_5=21 have where x_1, x_2, x_3, x_4, and x_5 are nonnegative integers and

omeli [17]

Step-by-step explanation:

$x_{1} + x_{2} + x_{3} + x_{4} + x_{5} = 21\\$ (given)

Let us consider :

$x_{1}$ = $t_{1} + 1$

$x_{2}$ = $t_{2}$

$x_{3}$ = $t_{3}$

$x_{4}$ = $t_{4}$

$x_{5}$ = $t_{5}$

Now, by substituting the above considerations in the above equation, we get:

$t_{1} + 1 + t_{2} + t_{3} + t_{4} + t_{5} = 21\\$

$t_{1} + t_{2} + t_{3} + t_{4} + t_{5} = 20\\$

where,

$t_{i}$ $\geq$ 1

then it follows

n = 20

r = 4

then no. of solutions for the eqn = $_{r}^{n + r}\textrm{C}$

= $_{4}^{24}\textrm{C}$

= 10626

Answer :

no. of solutions for the eqn 10626

4 0

3 years ago

Suppose P( A) = 0.60, P( B) = 0.85, and A and B are independent. The probability of the complement of the event ( A and B) is: a

diamong [38]

Answer: a. 0.4 × 0.15 = 0.060

Step-by-step explanation: Probability of the complement of an event is the one that is not part of the event.

For P(A):

P(A') = 1 - 0.6

P(A') = 0.4

For P(B):

P(B') = 1 - 0.85

P(B') = 0.15

To determine probability of A' and B':

P(A' and B') = P(A')*P(B')

P(A' and B') = 0.4*0.15

P(A' and B') = 0.06

Probability of the complement of the event is 0.060

5 0

2 years ago

-9x-12=35-x

masya89 [10]

= -9x-12=35-x

Put like terms together:

= -9x + x = 35 + 12

= -8x = 47

= x = -47/8

= x = -5.875

In short, Your Answer would be: -5.875

Hope this helps!

6 0

2 years ago

Find the distance between A (2.6) and N (5,10). Round to the nearest tenth, if necessary.

Triss [41]

Answer:

Step-by-step explanation:

6 0

2 years ago