Jessie's reading quiz has 20 question . He answered 1/4 of the questions correctly how many questions did jessie answer correctl
1 answer:
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Answer:
r = 1
Step-by-step explanation:
we know that :
Then
Then
Then
5×12 = 4×(16-r)
Then
60 = 64 - 4r
Then
4r = 64 - 60
Then
4r = 4
Then
r = 1
Answer:
it is correct or not ? if it is incorrect sorry
Answer:
3 hours 8 seconds
Step-by-step explanation:
Juan and Andrés are older adults and marathoners. Today they participated in the international marathon of the Andes. The announcer who covers this sporting event reported that Juan had finished the race with a time of 3¾ hours. Tijuanito the route in ⅔ of hours more than Andrés, how long did Andrés finish the marathon ?.
It is given that,
Juan had finished the race with a time of 3¾ hours.
He takes ⅔ of hours more than Andrés.
We need to find how long did Andrés finish the marathon.
Time taken by Juan = hours
Time taken by Tijuanito is hours more than Andrés.
So, Andrés finish the marathon before.