2 years ago

Solve -3(2w – 1) = 5w – 19

Mathematics

2 answers:

Savatey [412]2 years ago

7 0

Distribute property
-6w +3 = 5w-19
+6w +6w
3=11w-19
+19 +19
22=11w
--- ------
11 11

2=w <span />

Mekhanik [1.2K]2 years ago

6 0

-3(2w-1) = 5w - 19 Original problem.
-6w + 3 = 5w - 19 Distribute.
-11w + 3 = -19 Subtract 5w from each side.
-11w = -22 Subtract 3 from each side.
w = 2 Divide each side by -11.

Answer: w = 2

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Can someone solve this?

aleksley [76]

Answer:

Considering the Law of Cosines:

$c^2=a^2+b^2-2ab*cosC$

$a=14mi; b=24mi; c=CA; C=91degrees$

$\cos \left(91^{\circ \:}\right)=-0.01745\dots$

$c^2=14^2+24^2-2(14)(24)*\cos \left(91^{\circ \:}\right)\\c^2=196+576-672*\cos \left(91^{\circ \:}\right)\\c^2=772-672*\cos \left(91^{\circ \:}\right)\\c^2=772-672*(-0.01745)\\c^2=772+11.7264\\c=\sqrt{772+11.7264} \\c=\sqrt{783.7264}\\c=27.99mi$