2x+x-3=180
3x-3=180
3x=183
x=61
Answer:
x = 9; y = 12; u = 24; v = 32
Step-by-step explanation:
The corresponding sides of similar triangles are in the same ratio to each other.
3/5 = (3 + x)/20 Multiply each side by 20
20×3/5 = 3 + x
12 = 3 + x Subtract 3 from each side
x = 9
=====
4/5 = (4 + y)/20 Multiply each side by 20
20×4/5 = 4 + y
16 = 4 + y Subtract 4 from each side
y = 12
=====
3/5 = (3 + x + u)/60 Multiply each side by 60
60×3/5 = 3 + x + u
36 = 3 + x + u Insert the value of x
36 = 3 + 9 + u
36 = 12 + u Subtract 12 from each side
u = 24
=====
4/5 = (4 + y + v)/60 Multiply each side by 60
60×4/5 = 4 + y + v
48 = 4 + y + v Insert the value of y
48 = 4 + 12 + v
48 = 16 + v Subtract 16 from each side
v = 32
x = 9; y = 12; u = 24; v = 32
Answer:
point, 21 along the x-axis and 115 along the y-axis
Step-by-step explanation:
Answer:
C-15.12. That is the most suitable answer
Answer: 12n + 25
Step-by-step explanation:
Let x represent the amount that the school pays for ordering one shirt.
This includes the $25 flat-rate shipping cost. This means that if n shirts are ordered, the total cost including shipping would be expressed as
nx + 25
The school pays $1825 for 150 shirts. The expression would be
150x + 25 = 1825
150x = 1825 - 25
150x = 1800
x = 1800/150
x = $12
Therefore, the equation that models the total cost as a function of the number of n T-shirts ordered is
12n + 25
