So,
"The sum of three times a number"
3n +
"and 12"
3n + 12
"is 20"
3n + 12 = 20
Subtract 12 from both sides.
3n = 8
Divide both sides by 3.
Sorry can't see the pic really good
60 ≥ 35 + 5t
<u>-35 </u><u> </u><u>-35 </u>
<u>25</u> ≥ <u>5t</u>
5 5
t≤5
his mistake was that he used ≤ for at least instead of using ≥. so at end, when I solved, I saw that Sven should spend 5 minutes or less on each scale.
Answer:
4
Step-by-step explanation:
Answer:
1.6 m/hr
Step-by-step explanation:
(Time) 1/4 of an hour = .25 or 15 mins
Distance = 2/5 mile or .40
Speed = distance / time
Speed = .40 / .25
Speed = 1.6 m/hr