Answer:
a) 293 units
b) £57.95
Step-by-step explanation:
a)
New reading: 6538 units
Old reading
: 6245 units
The amount use is the difference between the two readings.
6538 - 6245 = 293
Answer: 293 units
b)
293 is the same as 200 units plus another 93 units.
The first 200 units are charged at 22p per unit
Cost of the first 200 units: 200 units * 22p/unit = 4400p
Remaining units are charged at 15p per unit
Cost of the additional 93 units: 93 units * 15p/unit = 1395p
Total charge: 4400p + 1395p = 5795p = £57.95
Answer: £57.95
Answer:
72.5
Step-by-step explanation:
You just add up all the numbers and divide by four.
Step-by-step explanation:
In Exercise B, the complement of an angle is 90° - ∠X
4. 90° - 45° = 45°
5. 90° - 20° = 70°
6. 90° - 30° = 60°
7. 90° - 55° = 35°
8. 90° - 75° = 15°
9. 90° - 80° = 10°
In Exercise C, the supplement of an angle is 180° - ∠X
10. 180° - 20° = 160°
11. 180° - 105° = 75°
12. 180° - 90° = 90°
13. 180° - 150° = 30°
14. 180° - 135° = 45°
15. 180° - 120° = 60°
Answer:
1
Step-by-step explanation:
You multiply -1 x -1 because it's squared and the negatives cancel out and 1 times 1 is 1
4(1+9x)
4 + 36x
hope that helps