18 + 12 = 30
12:30
2:5
Answer: 2:5
Answer:
I think it is D
Step-by-step explanation:
1 meter=100 centimeters. Therefore on Friday he repaired 2.5 meters and on Saturday he repaired 4.5 meters. In total he earned 4.5(6)+2.5(6) which equals $42
Answer:
5.x=-2,y=-2
7. y=1 , x=-1
Step-by-step explanation:
5. x+y=-4 equation 1
x-y=2 equation 2
x=-2
Equation 1, x=-2
-2+y=-4
y=-2
7.
-3x-4y=-1 equation 1
3x-y=-4 equation 2
-5y=-5
y=1
Equation-1 ,y=1
-3x-4=-1
-3x=3
x=-1
Answer:
A function is a relation in which each element of the domain, or x-value, is mapped to one element of the range, or y-value.
The question we are asked is if cost is a function of the activity type. This means that cost would be the range and activity type would be the domain.
If this is a function, then each activity type would have only one cost. However, on different days of the week each activity type has different prices; this means there is more than one cost for each activity type, and it is not a function.