Answer:- A) 407 tenths =40.7
B) 209 hundredths=2.09
Explanation:-
We know that one tenth
and one hundredth
A) 407 tenths

Thus decimal form of 407 tenths is 40.7.
B) 209 hundredths

Thus decimal form of 209 hundredth is 2.09.
Answer:
Number of days taken by 1 man alone and 1 boy alone are 35 days and 70 days respectively.
Step-by-step explanation:
Let, the work completed by 1 man in 1 day = x and the work completed by 1 boy in 1 day = y.
So, 4 men and 6 boy's 1 day work is
and 
And, 3 men and 4 boy's 1 day work is
and 
Since, 4 men and 6 boys complete the work in 5 days and 3 men and 4 boys complete the work in 7 days.
So, we have,


Let,
and 
So, the equations are,
................(1)
................(2)
Multiply (1) by 3 and (2) by 4 and subtract the equations, we get,
i.e.
i.e.
i.e. y = 70.
Substitute value of 'v' in (1) gives,
i.e.
i.e.
i.e.
i.e.
i.e.
i.e. x = 35
So, the number of days taken by 1 men alone and 1 boy alone are 35 days and 70 days respectively.
200 because 25 x 8 = 200 because perimeter is the outside it =)
Answer:
7/6
Step-by-step explanation:
the original line has a slope of -6/7, so the line perpendicular is 7/6. we swap the numerator and denominator, and if the starting slope is positive, the perpendicular slope would be negative, and the other way around.