5/13t= -9
Then t =( -9*13) / 5
T=-23.4
Answer:
578
Step-by-step explanation:
118
+560
answer:678
678-100=578
Answer:
12c +9 = Perimeter
Step-by-step explanation:
The perimeter of a triangle is found by adding all the sides
3c+4 + 5c-2 + 4c +7 = Perimeter
Combine like terms
12c +9 = Perimeter
Area = L x H
area = 20 x 15 = 300 square feet
Answer:
About 5 hr 10 min
Step-by-step explanation:
rate 1 = 1 pool / 9 hrs rate 2 = 1 pool / 12 hours
now find the time with both rates combined
1 pool / ( 1/9 + 1/12) = 1/ (7/36) = 36/7 hr = 5 1/7 hr = 5 hr 8.6 min
