20x=53-13
20x=40
20x/20=40/20
x=2
15x - 10 = -9x + 2
15x +9x -10 = -9x + 9x + 2
15 x + 9x - 10 + 10 = 2 + 10
15 x + 9 x = 2 + 10
24x = 12
24x/24 = 12/24
x = 1/2
hope this helps
Let t = the number of days the mouse travels
Let D = the distance that the mouse traveled
The mouse travels at a rate of 1.5 miles per day, so R = 1.5 mi/day
The equation is:
Distance (D) = Rate (R) x Time (t)
SO:
Distance (D) = 1.5 mi./day X Time (t)
Answer:
D
Step-by-step explanation:
The volume of Model A is 48 cm³. The volume of Model B is 40 cm³. 48+40=88.