2) 2 2/5
3) 8/5
4) 6 1/2
5) 12
6) 2 1/10
Answer:
the number is 5
Step-by-step explanation:
We have to find the equation to solve the problem.
Let the number be x
lets write one more than seven times the difference of a number and 4 in mathematical form
1. Difference of number and 4 will be written as x - 4
now
2. seven times the difference of a number and 4 will be written as
7*( x - 4)
3. one more than seven times the difference of a number and 4 is expressed as
1 + 7*( x - 4)
_____________________________________________
1 + 7*( x - 4) is equal to twice the difference of the number and 1
4. difference of the number and 1 is x - 1
5. twice the difference of the number and 1 is 2*(x-1)
Thus,
1 + 7*( x - 4) = 2*(x-1)
=> 1 + 7x - 28 = 2x -2
=> 7x - 27 = 2x - 2
adding 27 both sides
=> 7x - 27 + 27 = 2x - 2 + 27
=> 7x = 2x + 25
subtracting 2x from both sides
7x -2x = 2x + 25 - 2x
=> 5x = 25
dividing both side by 5
5x/5 = 25/5
x = 5
Thus, the number is 5 answer
Answer:
c is correct i tested it
Step-by-step explanation:
Answer:
864 sq ft
Step-by-step explanation:
Given that a human factors expert recommends that there be at least 9 square feet of floor space in a college classroom for every student in the class.
The number of students in the class = 96
For 1 student space required = 9 sq ft
For 96 students =?
This is a question of direct variation since when number of students increase space required also would increase.
Hence we get the minimum floor space that 96 students require.
=96*9
=864 sq ft
<span>A. Price is the independent variable. B. Price depends on age. C Age is the input variable. D. Age is the independent variable. B.or C.</span>