100-6x=160-10x
-6x+10x=160-100
4x=60
x=15
Have a nice day! :D
Answer:
There is no possible values for the number of whole hours walking dog
Step-by-step explanation:
Let x is the number of hours working as a babysitting (x ≥ 0)
Let y is the number of hours working as a walking dogs person (y ≥0)
We have a system of inequalities:
If Joseph worked 2 hours babysitting:
2+ y ≤ 9 <=> y ≤ 7 (y > 0) and
12x + 6y ≥ 90 <=> y ≥ 11
so there is no possible values for the number of whole hours walking dogs:
Hope it will find you well.
Answer:
all interior angles in a triangle all add up to 180°
9514 1404 393
Answer:
no solution
Step-by-step explanation:
Adding the two equations gives you ...
(-7x -4y) +(7x +4y) = (11) +(20)
0 = 31 . . . . . . false
No values of the variables will make this equation true. There is no solution.
Answer:
arc = 7.5π units
Step-by-step explanation:
the arc length is calculated as
arc = circumference of circle × fraction of circle
the angle subtended at the centre by the arc is 360° - 90° = 270° , then
arc = 2π × 5 × 
= 10π × 
= 
= 7.5π