simple math
x=5, y= 7 evaluate 10x +3y
71
A proportional relationship is graphed as a line that passes through which point?
The Origin (0,0)
What is the value of x in the equation 4x - 8 = 16?
x=6
Solve the equation 2x + 5 = 10 for x ?
2.5
The constant of proportionality is 5. If x = 4, what is y?
20
Solve for x: 7x - 3 = 18.
x=3
If 5 pens cost $7.50, what is the cost of 8 pens?
$12
A car travels 150 miles in 3 hours at a constant speed. How many miles will it travel in 5 hours?
250 miles
If the ratio of boys to girls in a class is 3:5, and there are 15 boys, how many girls are there?
25 girls
If 3 apples cost $1.50, how much would 7 apples cost?
3.50
If a runner completes 5 miles in 40 minutes, what is their average speed in miles per minute?
1/8 miles per minute
Which graph represents a proportional relationship?
A straight line passing through the origin (0,0)
Evaluate the equation 5x + 3 = 23 when x = 4.
23
Which of the following equations does NOT represent a proportional relationship?
1. y=2x 2. y= 4x 3. y= -3x 4. y= x-3
4. y=x-3
Which equation best describes the relationship between the number of hours worked (h) and the amount earned (e) if someone earns $15 per hour?
e = 15h