Erica sells magazine subscriptions and makes a flat rate of $5.35 for each subscription she sells. If Erica made $42.80 on Monda
2 answers:
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Answer:
Plane's speed is 150 miles/hour
Step-by-step explanation:
Let the plane's airspeed be x
Speed of wind is 30 miles/hour
When a plane flew with the wind , Speed = (x+30)
So, the speed plain with wind on going = (x+30)
Since we are given that on returning plane fly against the wind .
So,When a plane flew against the wind , Speed = (x-30)
So, the speed plain against wind on returning = (x-30)
Distance = 720 miles .
So, time on going
Time on returning
Now we are given that the total time for the whole trip (going + returning) = 10 hours.
So,
So, the plane's speed is 150 miles/hour
Answer:
The surface area of the net shown is: 88
Step-by-step explanation:
Break up the different shapes in the net:
Let's take the big square first:
It has a side of 5in and a base of 4in.
We multiply both these values to get 20
Lets look at the small rectangular box now:
It has a side of 3in and a base of 4in.
We multiply both these values to get 12
There are two big squares so we add up their surface areas:
20 + 20
= 40
There are 4 small rectangular squares so we add up their surface areas:
12 + 12
+ 12
+ 12
= 48
Now we add up the big square and small rectangular squares values:
40 + 48
= 88
Therefore the answer is 88