Out of 40 students 60% carry a cell phone. What fraction of students carry a cell phone

3/5

Step-by-step explanation:

10% of 40 would be 4, because you divide by 10.

4 x 6 = 24, which is 60%.

The fraction would be 24/40.

Then, you need to simplify the fraction.

First, divide by 2, to make 12/20.

You can divide by 2 again, to get 6/10,

if you divide again, you get 3/5, which is your final answer.

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

it is b)

hope this : )

step-by-step explanation: