7. Straight lines are also = to 180°
If you look at the diagram, when you add the two angles together, they form a straight line.
Since the angles add up to 180°, you can do:
(x + 25)° + (4x + 5)° = 180°
x + 25 + 4x + 5 = 180 Combine like terms
5x + 30 = 180 Subtract 30 on both sides
5x = 150 Divide 5 on both sides
x = 30
Answer:
first one 401.76, second one 93.96
Step-by-step explanation:
Answer:
<u><em>26 2/3 inches</em></u>
Step-by-step explanation:
<em><u>P=4s</u></em>
P= 4 × 6 2/3
P= <em><u>26 2/3 inches</u></em>
Answer:
£78.4
Step-by-step explanation:
Since he earns £9.80 per hour, we multiply this by how many hours there are. So £9.80 times 8 is £78.4. I hope this helps!