Answer:
Adult= $11
Children = $7.5
Step-by-step explanation:
Let x represent adult ticket and y represent children ticket
2x + 3y= 44.50........equation 1
3x + 6y= 78........equation 2
From equation 1
2x + 3y= 44.50
2x= 44.50-3y
x= 44.50-3y/2
Substitute 44.50-3y/2 for x in equation 2
3x+ 6y= 78
3(44.50-3y/2) + 6y= 78
66.75- 4.5y +6y= 78
66.75 + 1.5y= 78
1.5y= 78-66.75
1.5y= 11.25
y= 11.25/1.5
y = 7.5
Substitute 7.5 for y in equation 1
2x + 3y = 44.50
2x + 3(7.5)= 44.50
2x + 22.5= 44.50
2x = 44.50-22.5
2x= 22
x= 22/2
x= 11
Hence the price of adult ticket is $11 and the price of children ticket is $7.5
Answer: A
Step-by-step explanation:
Answer:
7x^2 + 29xy -2y^2 + 8y
Step-by-step explanation:
3x(x+5y)+2y(7x-y)+4(x^2+2y)
Break all the brackets and you would hot:
= 3x*x + 3x*5y + 2y*7x - 2y*y + 4*x^2 + 4*2y
= 3x^2 + 15xy + 14xy -2y^2 + 4x^2 + 8y
= 3x^2 + 4x^2 +15xy + 14xy - 2y^2 + 8y
= 7x^2 + 29xy -2y^2 + 8y
Hope this help you :3
The Statement:
AB is a Diameter is wrong because a Diameter is a straight line passing from side to side through the center. In this case it is a Chord because <span> it is a straight line segment whose endpoints both lie on the </span><span>circle.
ST,SP and Sq are radius this is true becuase </span><span> they are all lines that start from any point of the circumference and end at the center of the </span><span>circle
SQ= 12 cm this is false because SQ is a radius and SQ=ST, ST=6cm
PQ=12 cm this is true because PQ is a diameter</span>
