2 years ago

What is the answer to the problem 3(2x-5)-4(x-3)=7

Mathematics

1 answer:

il63 [147K]2 years ago

3 0

Disitribute the 3 to the first parenthesis:

$3(2x-5) = 6x-15$

Distribute the 4 to the second parenthesis:

$4(x-3)=4x-12$

So, the equation becomes

$6x-15-4x+12=7 \iff 2x=10 \iff x = \dfrac{10}{2} = 5$

You might be interested in

What is 18/12 in simplest form?

valina [46]

18 / 12 = 3 / 2 (in simplest form).

7 0

3 years ago

Negative twenty five minus six

svetoff [14.1K]

-25-6=-31

Change the subtraction sign into positive and add 25 and 6, then put the negative sign after.

8 0

3 years ago

If mBY =41 what is m YAC the figure is not drawn to scale.

sergij07 [2.7K]

Answer:

Step-by-step explanation:

8 0

2 years ago

38. What is the surface area of a conical grain storage tank that has a height of 62 meters and a diameter of 24 meters? Round t

svetoff [14.1K]

1. The surface area of a cone S is S= $\pi r^{2}+ \pi rl$ , where r is the radius of the base and l is the slant height.

2. The slant height l is found as follows:

$l^{2}= OC^{2}+ OB^{2}$
$l^{2}= 12^{2}+ 62^{2}=144+3844=3988$

$l= \sqrt{3988}=63.15$

3.

$A=\pi r^{2}+ \pi rl=3.14(12)^{2}+3.14*12*63.15
$
$= 452.16+2379.492 =2831.652 ( m^{2} )$

$= 452.16+2379.492 =2831.652 ( m^{2} )$

4. The answer is C

8 0

2 years ago

Read 2 more answers

how man 1/3 inch cubes does it take to fill a box with width 2 2/3 inches,lenght 3 1/3 inches and height 2 1/3

galben [10]

idk anymore ;-; please WELP ME

3 0

3 years ago