The histogram below shows information about the weights (in kg) of all the packages Colin needs to send out today for his business. How many packages does Colin need to send today?

3 packages

Step-by-step explanation:

Given

See attachment for complete question

Required

The packages less than 30 kg.

To do this, we simply add up the frequencies of packages less than 30 kg.

From the chart, we have:

So, the total is:

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