Answer:
The percentage of people going to the people in week 4 compared to week 1 decreased by 25%.
Step-by-step explanation:
Week 1: 1,040 people
Week 2: 105 fewer people
1040 - 105 = 935 people
Week 3: 135 more people
935 + 135 = 1070 people
Week 4: 290 fewer people
1070 - 290 = 780 people
So, there were 260 fewer people, going to the pool in those 4 weeks compared to week 1.
Now, we must find the percentage change.
x/100 = 780/1040
Cross multiply.
1040x = 78000
Divide both sides by 1040 to leave x by itself on one side.
x = 78000/1040
x = 75%
This means only 75% of the total people from week one were going to the pool in week four. Therefore, there was a 25% decrease in the number of people who went to the pool over these four weeks.
I hope this helps you
x=4
f (4)=4+3
f (4)=7
x= -2
g (-2)=13. (-2)-5
g (-2)= -26-5
g (-2)= -31
f (4)+g (-2)= 7 -31= -24
The two equations expressed in this scenario will be
y = 13x + 34
And
y = 30x
I like substitution, so let’s use that
Plug in y = 30x for y in the first equation
30x = 13x + 34
Subtract
17x = 34
x = 2
Plug in 2 for x in any equation
y = 30(2)
y = 60
It would be 2 hours and she would pay $60 dollars
Answer:
Option c is correct !!
Step-by-step explanation:
[ Refer to the attachment ]
As y = mx + c is an equation to represent the straight line ; we equate the given line with this equation !!
Where m is slope of the line
and c is y intercept !!
We get , m = -3/2 and c = 4
Also, two perpendicular lines follows the equation :-
Where m nth is slope of nth line !!
