Answer:
1.00 meter.
Step-by-step explanation:
For the first day, she dug eighteen twentieth of a meter = [tex]\frac{18}{20}[/tex] x 1 meter
= [tex]\frac{9}{10}[/tex] meters
The second day, she dug nine twentieth of a mater = [tex]\frac{9}{20}[/tex] x 1 meter
= [tex]\frac{9}{20}[/tex] meters
Total length of the trench = [tex]\frac{9}{10}[/tex] + [tex]\frac{9}{20}[/tex]
= [tex]\frac{18 + 9}{20}[/tex]
= [tex]\frac{27}{20}[/tex]
= 1[tex]\frac{7}{20}[/tex]
= 1.35 meters
Total length of the trench is 1.35 meters.
A reasonable estimate of the total length of the trench is 1.00 meter.
Answer:
It is 1 and 1 half. or C
Step-by-step explanation:
It is 18/20 + 9/20. 18 + 9 = 27, and there is (number)/20. since it is 20 it will get 1 whole. now there is just 7, and 7 you round up to 1 half because 5 and over round up, while 4 and under round down.
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