In a class of 32 students
the mean height for the boys is 1.56 metres
the mean height of all 32 students is 1.515 metres
work out the mean mean height of the girls

1.47 meters

Step-by-step explanation:

1.56 - 1.515 = 0.045

1.515 - 0.045 = 1.47

$450.00 for 6 weeks

or

$300

step-by-step explanation:

$200.00 for first week $50.00 x5 equals $250 plus $200 equals $450.00 for six weeks.

$200 for first week

$200 x 0.10 = $20

$20 x 5 = $100

$200 + $100 = $300

set each factor equal to 0

4x-3 = 0

2x-1 = 0

solve for x.

4x-3=0

4x=3

x= 3/4

solve for x. 

2x-1= 0

2x= 1

x= 1/2

eventually after a few more steps, your answer should be 1/2 is less than or equal to x and 3/4 is greater than or equal to x