All categories

3 years ago

What’s the answer for 3(x+4)=-18

Mathematics

2 answers:

atroni [7]3 years ago

8 0

Answer:

x = -10(see explanation!)

Step-by-step explanation:

With any equation, you will want to isolate the variable, in this case x. Here's a step by step:

3(x+4) = -18

Distribute the 3:

3*x + 4*3 = -18

Simplify:

3x + 12 = -18

Subtract 12 on both sides to isolate x:

3x + 12 - 12 = -18 - 12

Simplify:

3x = -30

Finally, divide by three to get the x value:

3x/3 = -30/3

x = -10

bija089 [108]3 years ago

6 0

Answer: 10 or -10

Step-by-step explanation: 3x + 12 = -18

-12 both sides then you get 3x = -30 divide by 3 which equals x = 10 or -10

You might be interested in

What is the value of x, the side length of the smallest square (please show work) Thanks!

Ratling [72]

Answer:

8 cm

Step-by-step explanation:

Ok lets on the biggest square we have 17 cm

17cm is the hypotenuse for the right triangle

The second largest's area is 225 cm^2

Sq root of 225 cm^2, is 15

To find x, lets plug the info we have to the pythagorean theorom

$a^2 + b^2 = c^2\\a^2 + 15^2 = 17^2\\a^2 + 225 = 289\\\\289 - 225 = a^2\\64=a^2\\a = 8 cm$

The side length of the smallest Square is 8 cm

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

7 0

3 years ago

Patricia can drive 36 kilometers for every 3 liters of gas she puts in her car.

zloy xaker [14]

36 km
--------- = 12 km/liter
3 lit

Pat can drive 12 km per liter of gas.

5 0

3 years ago

Read 2 more answers

A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 15∘ from level ground to the ki

Nataly [62]

Answer:

12.9 yd

Step-by-step explanation:

It helps if you draw a triangle. Draw a horizontal segment. That is the ground. Now at the left end start a new segment that goes up to the right at approximately 15 degrees until it its other endpoint directly above the right endpoint of the horizontal segment. Connect these two endpoints. The vertical side on the right shows the height of the kite. The hypotenuse is the string.

For the 15-deg angle, the height of the triangle is the opposite leg, and the string is the hypotenuse. The trig ratio that relates the opposite leg tot he hypotenuse is the sine.

$\sin A = \dfrac{opp}{hyp}$