2 years ago

What is the value of the expression x-3y when x = 6 and y = 12

Mathematics

1 answer:

elena55 [62]2 years ago

7 0

Answer:

-30

Step-by-step explanation:

Plug in the values of x and y: 6 - 3(12)
3(12) = 3 × 12 = 36
Plug 36 in: 6 - 36
6 - 36 = -30

I hope this helps!

You might be interested in

—- PB. It has endpoints at -2 and 12. What is the coordinate of its midpoint

netineya [11]

Answer:

The midpoint is 5

Step-by-step explanation:

we know that

The formula to calculate the midpoint between two numbers is

$M=(\frac{x1+x2}{2})$

we have

$x1=-2, x2=12$

substitute

$M=(\frac{-2+12}{2})$

$M=(\frac{10}{2})$

$M=5$

therefore

The midpoint is 5

7 0

2 years ago

In a survey of music preferences 81 out of 450 students said that they preferred country music what percent of the students pref

Kazeer [188]

To write 81/450 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % .

81/450 * 100 = 0.18 * 100 = 18% 
81/450 as a percent equals 18%

6 0

2 years ago

An equiangular triangle has one angle of measure 2x+8. What is x?

lina2011 [118]

Answer:

$x=26\\$

Step-by-step explanation:

The sum of the interior angles of a triangle add up to $180^{\circ}$ . Therefore, an equiangular triangle will have each of its angles equal to $60^{\circ}}$ . We can then set up the following equation: