Answer:
121
Step-by-step explanation:
1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 is a sum of first 11 odd numbers.
Here, n is the number of terms.
In this sequence, there are 11 terms.
Sum of first 11 odd numbers = 11²
= 11 *11
= 121
Answer:
$22.33
Step-by-step explanation:
A 20% tip would be 0.20. Multiply the cost by 0.20 to get the tip amount or multiply the cost by 1.20 to get the total amount including tip.
subtotal --> $18.61
tip --> $3.72
18.61 x 0.20 = 3.72
total --> $22.33
The percent increase from $1.80 to $2.07 is 15%.
2.07 / 1.80 = 1.15 - 1 = 15% increase.
If you were trying to find how much $1.80 of $2.07 was in percentage, then here you go:
1.80 * 100 (out of 100%) = 180
180 / 2.07 = 86.95
86.95%
The angle is 85 degrees definately
Make it y = mx + b
Subtract 7x to both sides
7x - 7x + y = 3 - 7x
Y = -7x + 3
The slope is -7, the y intercept is 3
