Answer:
y = - 7.5
Step-by-step explanation:
Given
- 140 = 18 + 4(5y - 2) ← distribute and simolify right side
- 140 = 18 + 20y - 8
- 140 = 10 + 20y ( subtract 10 from both sides )
- 150 = 20y ( divide both sides by 20 )
- 7.5 = y
So first we see if increase or decrease
180<210
it is increase
then we assume that
percent change
find how much change took place
210-180=30
30/180=x% change
percent means parts out ofo 100s so x%=x/100
30/180=x/100
multiply both sides by 100
3000/180=x
16.66666=x
answe ris 16.6%
Answer:
a) y-7=-4(x-2)
B) I don't know how to put a graph on brainly :/
Answer:
8 weeks other than the first one
Step-by-step explanation:
She started with 4 km, then
First week: 4 + 2 = 6
Second week: 6 + 2 = 8
Third week: 8 + 2 = 10
Fourth week: 10 + 2 = 12
Fifth week: 12 + 2 = 14
Sixth week: 14 + 2 = 16
Seventh week: 16 + 2 = 18
Eighth week: 18 + 2 = 20
Note: It's 9 weeks if you can't the first week, which is when she started on Monday
I hope this helps! :D
