Answer:
y = -2 x = 0
Step-by-step explanation:
1. 3x-4y = 8
2. 18-5y = 10
Multiply equation 1 by 6
3. 18x-24y = 48
Subtract equation 2 from equation 3
4. -19y = 38
y = 38/-19
y = -2
Sub y = -2 back into equation 1
3x-4(-2) = 8
3x + 8 = 8
3x = 0
x = 0/3
x = 0
Consider two adjacent rectangular rooms having Length=L, and, Breadth = B
Now Suppose the wall which is in between two rooms has a height or length =H.
Breadth of wall = B [ if the wall doesn't exceed the breadth of room]
Considering two rooms to be identical,
Area of each room= L × B square unit
Area of each tile = 1×1=1 square unit
Number of tiles required= L B ÷ 1= LB tiles( product of length and breadth of room is number of tiles required)
Suppose if,LB= N
B= N/L .................(1)
Area of wall(W) = B×H= B H square unit
B =W/H ......................(2)
Equating (1) and (2)
⇒N/L = W/ H
⇒H =w-z/N
⇒H =WL/LH
⇒H = W/B
⇒ H =area of wall / Breadth of room and wall
Answer:
y=5-3x
Step-by-step explanation:
<h3>Answer:</h3>
242 weeks
<h3>Explanation:</h3>
After n weeks at annual interest rate r, the principal amount P will result in account balance A according to ...
... A = P·(1 +r/52)^n
Taking logs, we get
... log(A) = log(P) +n·log(1 +r/52)
... (log(A) -log(P))/log(1 +r/52) = n . . . . . solve for n
Filling in the given informatin, we have ...
... (log(6700) -log(5000))/log(1 +.063/52) = n ≈ 241.71
Rounded to the next higher number of weeks, this is 242 weeks.
Xy^2 = 4,7^2 +6,5^2
xy^2 = 22,09 +42,25
xy = sqrt(64,34)
xy = 8,02