All categories

3 years ago

I’m not sure about this please help

Mathematics

2 answers:

castortr0y [4]3 years ago

3 0

Answer:

Step-by-step explanation:

Evaluate x/4 + 6 (x - 12) where x = 12:

x/4 + 6 (x - 12) = 12/4 + 6 (12 - 12)

Hint: | Reduce 12/4 to lowest terms. Start by finding the GCD of 12 and 4.

The gcd of 12 and 4 is 4, so 12/4 = (4×3)/(4×1) = 4/4×3 = 3:

3 + 6 (12 - 12)

Hint: | Look for the difference of two identical terms.

12 - 12 = 0:

6×0 + 3

Hint: | Any number times zero is zero.

0×6 = 0:

0 + 3

Hint: | Simplify the expression.

Write 3 + 0 as 3:

Answer: 3

erma4kov [3.2K]3 years ago

3 0

The answer is three.

Explanation:

x/4 = 12/4 = 3.
6(x-12) = 6(12-12) = 6(0) = 0
3+0=3

You might be interested in

In the top row of an chessboard, Tom writes the values 1, 2, 4, 8, 16, 32, 64, 128. In the leftmost column, Tom writes the value

solmaris [256]

$sum\ of\ the\ values\ in\ the\ top\ row:\\\\S=1+2+4+8+16+32+64+128= \frac{1-2^8}{1-2} =2^8-1=255\\\\ the\ sum\ of\ all\ the\ numbers\ on\ the\ chessboard:\\\\S\cdot1+S\cdot3+S\cdot9+S\cdot27+S\cdot81+S\cdot243+S\cdot729+S\cdot2187=\\\\=S\cdot(1+3+9+27+81+243+729+2187)=255\cdot \frac{1-3^8}{1-3} =\\\\=255\cdot \frac{-6560}{-2} =255\cdot3280=836,400\\\\Ans.\ the\ sum\ of\ all\ the\ numbers\ on\ the\ chessboard\ is\ 836,400$

7 0

3 years ago

3x-5y=7 9x+10y=1 Solve the following system by addition?

Brut [27]

U would multiply -5 by 2 then use the substitution property

3 0

3 years ago

A sculptor is planning to make two triangular prisms out of steel. The sculptor will use △ABC for the bases of one prism and △DE

Misha Larkins [42]

Answer:

Verify is the corresponding sides have same ratio:

AB / DE = 50/60 = 5/6
BC / EF = 20/24 = 5/6

Since the ratios are same, the triangles are similar

If one dimension is same, the base areas will make difference by the square of the scale factor:

(6/5)² = 1.44 times

4 0

3 years ago

Can a right triangle be both scales and isosceles explain

IgorC [24]

Answer:

Yes

Step-by-step explanation:

A right triangle may be isosceles or scalene. In an obtuse triangle, one angle is greater than a right angle—it is more than 90 degrees. An obtuse triangle may be isosceles or scalene. In an acute triangle, all angles are less than right angles—each one is less than 90 degrees

3 0

3 years ago

A sum of 2500$ is invested in a saving account which pays interest at a rate of 7 per year compounded annually. if the amount is

stiks02 [169]

Answer:

Step-by-step explanation:

2500( 7 years )

????? (15 years )

15*2500=37 500

6 0

2 years ago