All categories

3 years ago

Solve 0.5x - 3.5 = 65 for x

Mathematics

2 answers:

Evgen [1.6K]3 years ago

4 0

Answer:

solution

 $0.5x - 3.5 = 65 \\ or \: 0.5x = 65 + 3.5 \\ or \: 0.5x = 68.5 \\ or \: x = \frac{68.5}{0.5} \\ x = 137$ 

hope this helps..m

Good luck on your assignment..

boyakko [2]3 years ago

3 0

Answer:

x = 34.25

Step-by-step explanation:

The first thing that you have to do is get the x by itself. We add 3.5 on both sides. 0.5x = 68.5

Then we have to multiply by 0.5 on both sides.

That leaves us with x = 34.25

PLS mark brainliest.

You might be interested in

1 of 20 (19 complete)

Marina86 [1]

I hope this helps you find the answer you're looking for

8 0

3 years ago

Given that 3 x : 10 = 5 : 2 Calculate the value of x .

borishaifa [10]

$\tt{ 3x:10=5:2 }$ ⠀

$\tt{\dfrac{3x}{10}=\dfrac{5}{2} }$ ⠀

$\tt{3x×2=10×5 }$ ⠀

$\tt{6x=50 }$ ⠀

$\tt{x=\dfrac{50}{6} }$ ⠀

$\tt{ x=\dfrac{25}{3}}$ ⠀

7 0

3 years ago

Please help me ASAP only answer if you’re absolutely sure and/or you took the benchmark

ICE Princess25 [194]

Answer: the answer is a

Step-by-step explanation:

8 0

3 years ago

Find all the missing elements.

Montano1993 [528]

Answer:

b=30

a=120

c=50 these is how I figure it out

6 0

3 years ago

Read 2 more answers

1. Write out the law of cosines and find the hypotenuse of triangle with 2 sides lengths equal to three and the included angle m

LUCKY_DIMON [66]

Answer:

1.) $\sqrt{13.341}$ ≈ 3.652

2.) I would say something about how the A in front of cos in the equation would change to 90, rather than stay 75 (in the equation for the step by step), but it would be easier to just use the Pythagorean theorem.

Step-by-step explanation:

I think we may have the same class so hopefully this helps:

1.) $a^2 = b^2 + c^2 - 2bccosA$ --> law of cosines formula.

$a^2 = 3^2 + 3^2 - 2(3)(3)cos(75)$ --> plugged in numbers; when you draw the triangle, the included angle would be A, and the opposite side would be a. B and b, and C and c are opposite each other. In this case, a is the hypotenuse.

$a^2 = 18 - 18cos75$ --> in between steps.

$a^2 = 13.341$ --> more simplifying.

$a(hypotenuse) = \sqrt{13.341} or 3.652$ --> answer

2.) This one is just an explanation: The 75 in the equation is the given angle, which is a. If this changes, it would just change in the equation too. And obviously, if it's 90 degrees, you can just use Pythagorean theorem a^2+b^2=c^2.

Good luck! :)

6 0

3 years ago