Answer:
255 seconds
Step-by-step explanation:
60 seconds x 1.30 = 78.78 seconds
78.78 seconds x 1.5 = 117 seconds
117+78+60= 255 seconds
hope this helps ^D^
Answer:
The value is 
Step-by-step explanation:
Generally the productivity rate is mathematically represented as
Here K is the ha the farmer could harvest in an hour and Z is a typical yield of corn in kg/ha
Now considering 1970
The productivity rate is
=> 
Now considering 1940
The productivity rate is given as 
Generally the productivity ratio is mathematically ration is mathematically represented as
=> 
=>
Djxkxkfkv hgahz anackq dmzgh snfs he ahn an dh crjvsu crh
Answer:
5 boys
Step-by-step explanation:
boys to girls in math class = 3/12
3/12 can be reduced to 1/4
In the science class, the ratio is the same but there is a total of 20 girls.
Multiply the fraction 1/4 by 2/2, 3/3, 4/4, 5/5, etc. until you get x/20. Then you have 20 girls. x is the number of boys.
1/4 = 2/8 = 3/12 = 4/16 = 5/20
In science the ratio of 1/4 is the same as 5/20, so there are 5 boys.
Answer: 5 boys
Answer:
Cant see
Step-by-step explanation:
