Could you upload a pic of your problem?
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.
Answer:
2/27
Step-by-step explanation:
Step one:
given data
Sample space
2 red sections,
3 blue sections, and
4 green sections
Sample size
2+3+4= 9
Required
The probability of Basha spinning a red on her first spin and a blue on her second spin
Step two:
On the first spin, spinning a red= 2/9
On the second spini, spinning a blue= 3/9= 1/3
Hence, The probability of Basha spinning a red on her first spin and a blue on her second spin= 2/9*1/3= 2/27
Answer:
Your answer is 1, look below please
Step-by-step explanation:
ASSUMING that the x is a variable your equation is -1x=3+4 which would be...
-1x=7, then divide by -1 which gives us -7
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please mark as brainliest answer.
