Answer:
length is 39ft
width is 9ft
Step-by-step explanation:
let 6x - 15 be the length and x be the width
the perimeter of a rectangle is 2(L+W)
96 = 2(6x - 15 + x)
96 = 2(7x - 15)
96 = 14x - 30
126 = 14x
x = 9
Length is 6x - 15
6(9) - 15
54 - 15 = 39
3sqrt750+3sqrt2058-3sqrt48.
b)marginal cost
c)sunk cost
B $3000
C $5000
D $3500
Answer: A $4000
Step-by-step explanation:
Let x represent the amount which he invested at 3% interest.
Let y represent the amount which he invested at 3.25% interest.
Walt made an extra $7000 last year from a part-time job. He invested part of the money at 3% and the rest at 3.25%. This means that
x + y = 7000
The formula for determining simple interest is expressed as
I = PRT/100
Considering the account paying 3% interest,
P = $x
T = 1 year
R = 3℅
I = (x × 3 × 1)/100 = 0.03x
Considering the account paying 3.25% interest,
P = $y
T = 1 year
R = 3.25℅
I = (y × 3.25 × 1)/100 = 0.0325y
He made a total of $220.00 in interest., it means that
0.03x + 0.0325y = 220 - - - - - - - -- -1
Substituting x = 7000 - y into equation 1, it becomes
0.03(7000- y) + 0.0325y = 220
210 - 0.03y + 0.0325y = 220
- 0.03y + 0.0325y = 220 - 210
0.0025y = 10
y = 10/0.0025
y = 4000
B. (3x + 4)(x + 4)
C. (3x – 4)(x – 4)
D. (3x – 4)(x + 4)
Answer:
The factored form of the expression 3x + 8x – 16 is (3x -4) (x + 4) .
Option (D) is correct.
Step-by-step explanation:
As the expression given in the question be.
3x (x + 4) - 4 (x +4) = 0
(3x -4) (x + 4) = 0
Therefore the factored form of the expression 3x + 8x – 16 is (3x -4) (x + 4) .
Option (D) is correct.
Answer:
11
Step-by-step explanation:
Let's start with the total number of points (100) and take what we already know, away.
We know the name is worth one point.
99 points left over
Let's divide by the 9 questions there are to see if they all equal the same.
They do because 99/9 is 11 points each!
Very glad I could help!!