What is expression is
equivalent to 5(9+t)

answer:

12.01 / (6.022 * 10^23) = 1.994·10^(-23)

answer:

all real numbers would be the solution

step-by-step explanation:

2y - 4x =2 and y = 2x + 1

we solve but placing the value of y into the first equation:

2(2x + 1) - 4x = 2

next we distribute the 2 through the parenthesis:

4x + 2 - 4x = 2

now we gather like terms:

2 = 2 ( note the 4x and - 4x cancel out)

since 2 =2 this tells us that all real numbers would work.

calculate the amount 1 man can eat per day from the known amounts:

200 kg /   40 days = 5 kg of wheat per day / 20 men = 0.25 kg per man per day.

now calculate the time it will take 10 men:

10 men x 0.25 kg per day = 2.5 kg per day.

300 kg / 2.5 kg per day = 120 days