The answer is 75° because all three angles of a triangle must add to 180°
Answer:
Children ticket cost $30 and adult ticket costs $40.
Step-by-step explanation:
Given that:
x = price of a child ticket
y = price of an adult ticket
According to given statement;
3x+2y=170 Eqn 1
4x+6y=360 Eqn 2
Multiplying Eqn 1 by 3
3(3x+2y=170)
9x+6y=510 Eqn 3
Subtracting Eqn 2 from Eqn 3
(9x+6y)-(4x+6y)=510-360
9x+6y-4x-6y=150
5x=150
Dividing both sides by 5
Putting x=30 in Eqn 1
3(30)+2y=170
90+2y=170
2y = 170-90
2y = 80
Dividing both sides by 2
Hence,
Children ticket cost $30 and adult ticket costs $40.
Answer:
$3.38
Step-by-step explanation:
The formula is 45= 8x + 4t. Each tube of toothpaste is 4.50, so times four is 18. So they spent 18 dollars on toothpaste, and the rest on toothbrushes. There are 27 dollars left, and 8 toothbrushes, so divide and each toothbrush is $3.375, or $3.38
Answer:
Step-by-step explanation:
hypotenuse (h) = 9.4
base(b) = 1.9
cos x = b/h
cos x = 1.9/9.4
x = cos ^-1 ( 1.9/9.4)
x = 78.3°
hope it will help :)
Answer:
x = 10°
y = 14
Step-by-step explanation:
Angle A = angle B = angle C = 6x ( equilateral triangle has equal angles )
therefore
Angle A + Angle B + angle C = 180° ( sum of angle in a triangle)
6x + 6x + 6x = 180
18x = 180°
divide both sides by 18
x = 10°
to get y
side AC = AB = BC ( equilateral triangle has equal sides )
