57 + x + x + 130 = 167
57 + 2x + 130 = 167
187 + 2x = 167
- 187 - 187
---------------------------
2x = -20
------ -------
2 2
x = -10
Answer:
Answer is D
Step-by-step explanation:
(3,-7) and (1,-10) belong toD Variant
Answer:
The quantity after t years 40 (0.65)^{\textrm t} millions tons
Step-by-step explanation:
Given as :
The rate of decrease of carbon dioxide each other = 35%
The quantity of carbon dioxide emitted this year = 40 million tons
Let the quantity of carbon dioxide emitted after t year = A millions tons
Now, According to question
The quantity of carbon dioxide emitted after t year = The quantity of carbon dioxide emitted this year ×
Or, A millions tons = 40 millions tons ×
Or, A millions tons = 40 millions tons ×
Or, A millions tons = 40 millions tons ×
$40 pre hour x 70 hours = 2800+ $75 = $2875
Total cost $2875
Write in slope-intercept form,
70 hours,75,40, hour
You can cut 15.4 pieces or rounded to 15 pieces just take 12.32 and divide by 0.8 giving you 15.4