Step-by-step explanation:
using elimination method because this is a simultaneous equation
3×x+6×y=111
x+y=27
1×[3x+6y=111]
3×[x+y=27]
3x+6y=111—equation 1
3x+3y=81—equation 2
substrate equation 1 from equation 2
3y=30
divide both sides by 3
y=10
substitute 10 for y in equation 1
3x+6y=111
3x+6(10)=111
3x+60=111
3x=111-60
3x=51
divide both sides by 3
x=17
3 :)
(I need 20 characters hahdjfkshhd)
A tangent line to a circle is perpendicular to the radius drawn to the tangent point ⇒ m∠JTE = 90° ⇒ ΔJTE is the right triangle.
EJ = 3963 + 4.8 = 3967.8
sinJ = ET/EJ = 3963/3967.8 ≈ 0.9988 ⇒ m∠J ≈ 87.2°
Answer: 87.2° to the nearest tenth
Divide 630 by 30 then divide 798 by 42 finally divide 864 by 54 and ur answer for the sedan is :18 mpg then the minivan : 19 then the truck is :16