I just need help on this.
2 answers:
Answer:
Step-by-step explanation:
From the problem statement:
"I am less than one-half"
This means that the number is less than , or 0.50
"but greater than four tenths"
This means that the number is greater than , or 0.40
"I am a decimal with the digit 2 in my hundredths place"
This means that the number follows the format 0.x2, so we just need to figure out what x is. We know that the number is between 0.40 and 0.50, so the number in this case would be 0.42
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Given :
Rain is falling at 0.5 inches per hour and 1.5 inches have already accumulated.
To Find :
How many hours must have passed if there are 5 inches of rain .
Solution :
Let , after x hours rain accumulated is 5 inches .
We know , general equation of line :
y = mx +c
Here , m = 0.5 and c = 1 .
So , equation of rain accumulated is :
Now , putting value of x = 5 hours .
We get :
Hence , this is the required solution .