Mixed fraction is converted to improper 17/8.
A fraction represents a part of a whole.
Fractions are of three types.
Proper, Improper and mixed fractions.
In proper fraction the numerator is less than the denominator.
The improper fraction is a fraction whose numerator is larger than the denominator.
The given mixed fraction is converted to improper
2×8+1/8
16+1/8
17/8
Hence, mixed fraction is converted to improper 17/8.
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Let cost of Emma's phone = x
Given that cost of Sophie's phone = 640
Then ratio of their phones cost will be x:640 or x/640
Given that ratio of their phones cost is 7:8 or 7/8
So both ratios will be equal.
x=560
So the new ratio of the cost of their phones will be 560:640
Now we have to find about how much should the prices of their phones decrease in order to have a ratio of 9:11.
So let that decreased amount is k then we will get equation :
11(560-k)=9(640-k)
6160-11k=5760-9k
6160-5760=11k-9k
400=2k
200=k
Hence final answer is prices of their phones should decrease by 200 in order to have a ratio of 9:11.
B 15−v15 minus v
C v−2v minus 2
D 13+v13 plus v
E v−15v minus 15
F v+13
Answer:
A and D
Step-by-step explanation:
There are already 15. Take away 2 in the next year and also add some (v) in the same year.
13 + v is the simplified version of the original expression (15 - 2 + v)
I hope this helps
Answer:
13+v=x
Step-by-step explanation:
Hope this helps