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2 years ago

Which is a simplified form of the expression 5x – 12 + 18x – 4?

Mathematics

2 answers:

aalyn [17]2 years ago

3 0

The answer is 23x - 16

avanturin [10]2 years ago

3 0

Answer:

23x-16

Step-by-step explanation:

5x + 18x=23x

-12 + (-4)= -16

23x-16

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The ratio of two numbers is 2/3. The sum of the numbers is 105. What are the two numbers?

Pepsi [2]

A) x/y = 2/3
B) x + y = 105
Solving Equation A for y
A) y = 1.5x
Substituting A into B
B) x + 1.5x = 105
2.5x = 105
x = 42
y = 63

8 0

3 years ago

Solve for x. <br><br> a²x+(a-8)=(a+8)x

Sergio [31]

$a^2x+(a-8)=(a+8)x\\\\(a+8)x=a^2x+(a-8)\ \ \ \ |subtract\ a^2x\ from\ both\ sides\\\\(a+8)x-a^2x=a-8\\\\(a+8-a^2)x=a-8\ \ \ \ |divide\ both\ sides\ by\ (a+8-a^2)\\\\\huge\boxed{x=\frac{a-8}{a+8-a^2}}\to\huge\boxed{x=\frac{8-x}{a^2-a-8}}$

6 0

3 years ago

Read 2 more answers

For this problem, assume there are 5 grey females, 4 grey males, 2 white females, and 6 white males. As in the book, the biologi

Leni [432]

Answer:

The required probability is 0.04411

Step-by-step explanation:

The number of female grey mice = 5.

The number of males grey mice = 4.

The number of female white mice = 2.

The number of male white mice = 6.

The number of mice = 17.

The probability of first mice be male grey = $\frac{4}{17}$

The probability of second mice be male grey = $\frac{3}{16}$

The probability of two mice be male grey = $\frac{4}{17} *\frac{3}{16}$ = 0.04411

3 0

3 years ago

You are paid $82.50 for 71212 hours of work. What is your rate of pay?

yanalaym [24]

If you would like to know what is your rate of pay, you can calculate this using the following steps:

$82.50 ... 7.5 hours
$x = ? ... 1 hour

82.50 * 1 = 7.5 * x
82.50 = 7.5 * x /7.5
x = 82.50 / 7.5
x = $11

The correct result would be $11 per hour.

3 0

3 years ago

Joe started his homework at 4.15 pm.

solniwko [45]

5:30pm

just add 30 mins to 4:15pm which is 4:45pm then add the 45 mins to that which becomes 5:30pm

8 0

3 years ago