To find the perimeter it is 2 X Width + 2 X the length = 84
32+ 2 X the length = 84
2 X the length = 52
Therefore the length is 26cm
Answer:
use -9 to multiply the first equation
use -4 to multiply the second equation.
Step-by-step explanation:
5x-4y=28.....eqn (1)×-9
3x-9y=30....eqn(2)×-4
-45x+36y=-252
-(-12x+36y=-120)
therefore, -33x÷33 =-132÷-33
x=4.
substitute (x=4) in any of the equation. I'm just going to use eqn 1.
5x-4y=28
5(4)-4y=28
20-4y=28
-4y =28-20
-4y÷-4 = 8÷-4
y=-2
so, x=4, y=-2
Note: for proof of answers substitute the answers for x and y and see if you have the same result...e.g
5(4)-4(-2)=28.
Answer:
3:2
Step-by-step explanation:
Yes a ratio is a rate
They are basically the same number
Answer: 30 trees
Step-by-step explanation:
Elizabeth has 330 citrus trees and 180 palm trees
The largest number of trees that she can have in a row will base on the highest common factor between the two number of trees
330 = 2 × 3 × 5 × 11
180 = 2 × 2 × 3 × 3 × 5
HCF = 2 × 3 × 5
HCF = 30
The largest number of trees that she can have in a row is 30 trees.
