in an army camp the provision for 20 people is 10 days what will be the food provision if 5 more people join the camp

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  8 days

Step-by-step explanation:

Assuming the number of days is inversely proportional to the number of people, increasing the number of people by a factor of 25/20 = 5/4 will decrease the number of days by the factor 4/5.

  (4/5)(10 days) = 8 days

The provisions will last 8 days if 5 more people join the camp.

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

part a: 1.08

part b: 27.59