Since these are supplementary angles (two angles which sum to 180°) we can say:
4x+x=180 combine like terms on left side
5x=180 divide both sides by 5
x=36°
-10(1) = w + 5.3
-10 = w + 5.3
-10 (-5.3) = w + 5.3 (-5.3)
w = -15.3
hope this helps
Answer:
the sender is 23 I don't no if I am right tho
Perimeter is the sum of all the sides. One length equals (x+4) so both of the lengths will equal 2(x+4) = 2x+8. One width is (2x-7) so both will equal 2(2x-7) = 4x-14.
we can write this into an equation like so:
2x+8+4x-14=42
6x-6=42
6x=48
x=8
Then we substitute 8 back into the equations for the lengths of the sides.
8+4= 12 so the length is 12cm
2x8= 16, 16-7=9 so the width is 9cm
Answer:
18 dollars and 21 cents. $18.21
Step-by-step explanation:
