Melinda has a photo that is 8 inches by 11 inches. She wants to enlarge its length to 44 inches. What should the width be?
2 answers:
Answer:
The other side should be
32 inches
Step-by-step explanation:
This problem bothers on shapes
This one in particular is a rectangular shape
From the problem statement
The photo Frame is in portrait orientation
N/B please see the attached file for your reference
Now she want to enlarge the length
I.e the longer side from 11 to 44 inches
Now from 11 to 44 inches she multiplied the original length by 4
There the other side of original width 8 must be multiplied by 4 also
8*4= 32 inches
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Try this solution:
Answer: 6 & 4.5 (m-per-h)
Step-by-step explanation:
- The basic formula used in this task is S=V*t, where S - distance, V - speed, t - time.
- the downstream speed is: V+Vc, where V - the speed of the boat in still water, Vc - the speed of the current.
- the upstream speed is: V-Vc.
- according to the described above the distance for downstream is S1=(V+Vc)*t1, where t1=10; the distance for upstream is S2=(V-Vc)*t2, where t2=70.
- for whole travel down- and upstream: S=S1+S2.
- Using these it is possible to make up the system of the equations:
V - the speed of the boat in still water - 6 miles per hour, Vc - the speed of the current - 4.5 miles per hour. All the details for the system of the equations are in the attachment.
