Step-by-step explanation:
6m+15n-12p/n where m=-3.5, n=4 and p=3
6(-3.5)+15(4)-12(3)/4=-21+60-36/4
-21+60-9=-30+60=30
17) y-5=-3(x+2)
y=-3x-1
-3x-1
-3x=1
x=-1/3
18)y+1=4/5(x-5)
y=4x/5-5
4x/5-5=0
4x x5/5-5x5=0x5
4x-5x5=0x5
4x-25=0
4x=25
x=25/4
19)0=x-4
x-4=0
x=4
20)y-3=-1/2(x+4)
y=-x/2+1
-x/2+1=0
x=2
21)y-4=1/3(x+3)
y=x/3+5
x/3+5=0
x/3=-5
x=-5x3
x= -15
22) y+5=3(x+3)
y=3x+4
3x+4=0
3x=-4
x=-4/3
23) y-3=-2(x+2)
y=-2x-1
-2x-1=0
-2x=1
x=-1/2
24)y-1=5/3(x-3)
y=5x/3-4
5x/3-4=0
x=4x3/5
x=12/5
Answer:
a) the variable is the number of fragments per 100 square meters
b) the variable is quantitative
Step-by-step explanation:
Data
a. The variable is an quantity that can be manipulated to achieve the desired result. For example, if we had the equation:
y = 2 x + 5
The variable will be x. Therefore, the output y depend on the input values of x.
In this question, the archaeologist wants to estimate the number of ferromagnetic artifacts . He can only do that by determining the artifacts per 100 square meters.
b. The variable is quantitative. It requires physical counting.
Answer:
Step-by-step explanation: