Answer:
9
Step-by-step explanation:
Answer:
(3x+8)°+(x+4)° = 180,
x=42
Step-by-step explanation:
They are linear pairs, so the two angles are supplementary or add up to 180°.
1. Format the equation (3x+8)°+(x+4)° = 180
2. Simplify like terms 4x + 12 = 180
3. Subtract 12 on both sides, 4x=168
4. Divide 4 on both sides, x=42
5. Answer is x=42
Answer:
$3.95 a box
Step-by-step explanation:
$43.50 - $27.70 =$15.80 / 4 =$3.95 per box
Answer:
1,5 9,2
Step-by-step explanation:
x = 5
5 + x = (9)
4
Answer:
5a + 15
Step-by-step explanation:
2a + 3(a + 5)
open brackets
2a + 3a + 15
5a + 15
