Answer:
60 m/h
Step-by-step explanation:
1. the basic formula is Time=Distance/Speed;
2. total time is time1 (for 84 miles)+time2 (for 130 miles)=time (4 hours);
3. the time for the first 84 mi. is time1=84/S;
4. the time for the rest 130 mi. is time2=130/(S-10);
5. using all the data of items 2-4, it is possible to substitute into the basic formula and resolve an equation:
note, that the value of speed has one condition: s>10. It means, the only value is true: 60 miles per hour.
Answer:
Inflation is the continuing reduction of the purchasing power or price level rise in a given time period.
Therefore, keeping money in a savings account that gives an interest rate that is lower than the inflation rate, in a period of high inflation will result in a reduction of the purchasing power of the amount of money plus interest in the savings account.
If the interest rate is 10%, the amount, A, in the account after a given time will be 1.1A
If the inflation rate is 15%, the value of the goods sold initially at A, will become 1.15A after the given period and the amount in the account will no longer be able to purchase the goods it was initially able to purchase, or the amount in the savings account will lose value
Step-by-step explanation:
1
Week = w
1 hour = d
Formula
w = dm + c
The m is the gradient
The c is the d when w is 0
First let’s do m
m is basically how much the d changes from one point to another
So how much does d changes from 20 to 15.5
Write answer in comments then I will continue
Answer:
C. Neither
Step-by-step explanation:
The first equation is
This equation is already in the slope-intercept form;
The slope of this equation is 2.
The second equation is .
This equation is also already in the slope-intercept form.
The slope of this equation is .
Since the two slopes are not the same, the two lines are not parallel.
If these two lines are perpendicular, then the product of their slopes is -1.
But which is not equal to -1.
Therefore the two lines are also not perpendicular.
The correct choice is C.
Answer:
see below
Step-by-step explanation:
The graph has a discontinuity at x=0, where the function is defined as (0, 4), not (0, 0).
