Answer: 10 + 10.75 + 10 = 30.75 (but it could also be 31.5)
Step-by-step explanation: ???
60 seconds in 1 minute.....60 minutes in one hr....60 * 60 = 3600 seconds/hr
110/3600 = x / 2......110 km in 3600 sec = x km in 2 sec
cross multiply because this is a proportion
(3600)(x) = (110)(2)
3600x = 220
x = 220/3600
x = 0.0611 km/hr <==
Hello,
x²=49
==>(x+7)(x-7)=0
x=7 or x=-7
Answer:
116.6 pounds
Step-by-step explanation:
Set up a proportion where x is the weight of her desk in pounds:
= 
Cross multiply:
x = 116.6
So, her desk is 116.6 pounds
Answer:
140% increase
Step-by-step explanation:
