Answer:
Choice 3
Step-by-step explanation:
Using V = πr^2 h
Choice 1. π2^2x6 = 75.4
Choice 2. π2.5^2x5 = 98.17
Choice 3. π3^2x4 = 113.1
Choice 4. π3.2^2x3 = 96.51
First, distribute 2 to x and 4, and -3 to x and -5 (distributive property)
2(x + 4) = 2x + 8
-3(x - 5) = -3x + 15
2x + 8 - 3x + 15
Next, combine like terms
2x - 3x = -x
8 + 15 = 23
-x + 23 is your answer
hope this helps
Answer:
5 folders and 5 pens = yes
6 pens and 6 erasers = yes
1 pen and 4 notebooks = no
3 folders and 7 erasers = no
4 folders and 2 notebooks = yes
Step-by-step explanation:
Max total = $10
(5 folders x 1.29) + (5 pens x 0.70)
6.45 + 3.50 = 9.95
(6 pens x 0.70) + (6 erasers x 0.89)
4.20 + 5.34 = 9.54
(1 pen × 0.70) + (4 notebooks × 2.35)
0.70 + 9.40 = 10.10
(3 folders × 1.29) + (7 erasers × 0.89)
3.98 + 6.23 = 10.21
(4 folders × 1.29) + (2 notebooks × 2.35)
5.16 + 4.70 = 9.86
They’re supplementary angles, so they’re equal to 180°
2x + 5 + 8x + 5 = 180
10x + 10 = 180
10x = 170
x = 17
