Three or more points on a straight line
Answer:
answer is 20............
Step-by-step explanation:
3x=13-19
x= -6/3
x= -2
If you would like to know which one of the options is better to buy, you can calculate this using the following steps:
3 sandwiches ... $4.95
1 sandwich ... $x = ?
______________________
3 * x = 1 * 4.95 /3
x = 4.95 / 3 = $1.65
4 sandwiches ... $6.72
1 sandwich ... $y = ?
______________________
4 * y = 1 * 6.72 /4
y = 6.72 / 4 = $1.68
Result: You should buy sandwiches from the first option ($1.65 < $1.68 per unit).
Step-by-step explanation:
Now adding powers
Hope it will help :)
Hey there! :)
Answer:
r = 105.
Step-by-step explanation:
In the quadratic formula, √r = 
Where a = 1, b = -9, and c = -6. Therefore:
√r = √(-9)² - 4(1)(-6)
√r = √81 -4(-6)
√r = √81 + 24
√r = √105
Therefore, r = 105.
