Answer:
The first one of the second column
Step-by-step explanation:
Multiply -5 by each number inside the parenthesis remembering that when you multiply two negative numbers the result is positive
-5(4x-7)+8=3x
-20x+35+8 = 3x
<u>Answer-</u>
<em>The value of y is
when x=7 and z=4.</em>
<u>Solution-</u>
As given in the question, y is directly proportional to x, so
-----------------1
And also y is directly proportional to z, so
-----------------2
Combining equation 1 and 2,

Where,
k = proportionality constant
When x=6 and z=1, y=4. Putting theses values,




Now, we have to find the value of y, when x=7 and z=4


Therefore, the value of y is
when x=7 and z=4.
Answer:
6x-2
Step-by-step explanation:
-4x(1-3)-(2x+2)
= 4x+12x-2x-2
6x-2
(simplify)
Answer:
Yes
Step-by-step explanation:
y-2=-5(x-2)
y=-3(x-2)
Answer:
1 5/11 ≈ 1.455
Step-by-step explanation:
The total number of vehicles owned is
(4×0 + 8×1 + 6×2 + 4×3) = 32
The total number of families is ...
4 + 8 + 6 + 4 = 22
Then the mean number of vehicles per family is ...
32/22 = 16/11 ≈ 1.455