The only coins that kyle has are dimes and quarters. He has a total of 30 coins. The toal value of Kyles coins is $4.80. Which o
2 answers:
In the given question, it is given that
The only coins that kyle has are dimes and quarters. He has a total of 30 coins. The toal value of Kyles coins is $4.80.
Total coins are 30.
And total amount is 4.80.
So the system of equations are
For this case, the first thing we must do is define variables.
We have then:
d: number of dimes
q: number of quarters
We now write the system of equations that models the problem.
We have then:
He has a total of 30 coins:
The toal value of Kyles coins is $ 4.80:
Answer:
A system of equations that can be used to find the number of dimes, d, and the number of quarters, q, kyes has is:
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Answer: Charles practiced for 9 hours for the relay race last week.
Explanation:
Since we have given that
For every 5 hours that Eric spends practicing hurdles, he practices the javelin for 1.5 hours.
So, it means ,
For every 15 hours that spends practicing hurdles, he practices the javelin for
Now, we have also given that ,
Eric and Charles practiced javelin for the same amount of time,
It means Charles practiced javelin for 4.5 hours .
Now, we can relate that ,
For every 5 hours that Charles spends practicing for the relay race, he practices the javelin for 2.5 hours.
Let the time taken by Charles in practicing for the relay race last week be x.
If Charles practiced javelin for 4.5 hours, he will practice for relay race for
Hence, Charles practiced for 9 hours for the relay race last week.