Answer:
Step-by-step explanation:
2
Answer:
x=3
y=-1
Step-by-step explanation:
x=4+y
by substitution it in equation 1
weget
(4+y)+y=2
4+2y=2
y=-1
x=3
Answer:
1/5
Step-by-step explanation:
2 squares to 10 traingles is 2/10
But if you divide both top and bottom by 2, it simplifies to 1/5
Answer:
y = 23
x ≈ 13
Step-by-step explanation:
3y + (y+88) = 180
Solve for y
y =23
6x + 35 = y + 88
substitute y = 23
6x + 35 = 23 + 88
Solve for x
x ≈ 13
Answer:
x ≈ 19.7
Step-by-step explanation:
Using the sine ratio in the right triangle.
sin66° = 
= 
( multiply both sides by x )
x × sin66° = 18 ( divide both sides by sin66° )
x = 
≈ 19.7 ( to the nearest tenth )
