Answer:
Step-by-step explanation:
Given
of child's age
Solving (1):
Determine the cost function.
Represent the years as y.
So, we have:
* y
Convert 25 cents to dollars.
So, we have:
The cost amount is then:
--- This is the cost function
Solving (b): Cost of 9 years old.
In this case;
Substitute 9 for y in
--- This is the cost for a child of 9
Answer:
The answer is m = 7
Step-by-step explanation:
Rewrite in slope-intercept form.
The slope-intercept form is y = mx + b , where m is the slope and b is the y-intercept.
y = mx + b
Multiply 19 by 5.
y = 7x + 95
Using the slope-intercept form, the slope is 7 .
m = 7
I hope this helps.
Answer:
4 mph
Step-by-step explanation:
Travel time is proportional to distance and inversely proportional to speed. If c represents the speed of the current in miles per hour, an equation for the total trip time is ...
825/(29 -c) +825/(29 +c) = 58 . . . . . . hours travel time
825(29 +c) +825(29 -c) = 58(29 -c)(29 +c)
58c² -928 = 0 . . . . . . . rearrange to standard form
58(c -4)(c +4) = 0 . . . . factor
Values of c that satisfy this equation are 4 and -4. For the purpose here, we'll choose the positive solution.
The speed of the current is 4 miles per hour.
Answer:
Your answer is b+2=8. Good day.
Step-by-step explanation:
Multiply how many miles he walks in 1/4 by 3.
hope this helps :)
