Answer:
A. 20
Step-by-step explanation:
look at this step:
4 : 5 = X : 25
X = 4×25/5 = 100/5 = 20
Answer: First half was 24 minutes
Step-by-step explanation:
Let the time taken to finish the second half be y.
Since the student used 2/3 of the second half time to finish the first half, first half = 2/3 × y = 2y/3
The entire exam is an hour which equals 60 minutes
First half + Second half = 60minutes
Note that first half is denoted as 2y/3 and second half is denoted by y.
2y/3 + y = 60
5y/3 = 60
Cross multiply
5y = 60 × 3
5y = 180
y = 180/5
y = 36
Second half took 36 minutes
Since first half is 2y/3, it will be:
(2×36) / 3
= 72/3
= 24minutes
First half took 24 minutes.
Answer:
A line includes the points (4, 8) and (3, 5) whose equation in slope-intercept form will be :
Step-by-step explanation:
The point slope form: 
where : m = Slope of the line
A line includes the points (4, 8) and (3, 5).The equation of the line will be:
(y=mx+c), where c is intercept at y axis.
The above equation represents slope-intercept form of the line.
The volume of the prism is 646
