2 times 2=4
multiply first equation by 2 to get
-4x+6y=12
then add to get
-4x+6y=12
<u>4x-2y=8 +</u>
0x+4y=20
4y=20
y=5
sub back
-2x+3y=6
-2x+3(5)=6
-2x+15=6
-2x=-9
x=9/2=4.5
the number to multiply by is 2
Answer:
8:7 or 8/7
Step-by-step explanation:
you put the object before to as the numerator and the one after to as the denominator or to the right of the :
#420
because 70x4=420 within 300 and 500 and is greater than 400 which is a multiple of 100
Answer:
15.05
Step-by-step explanation:
Also, you don't need to add the zeros, they don't mean anything.
Answer:
104 units
Step-by-step explanation:
Given
Shape: Rhombus


Required
Determine the perimeter
The given parameter are the diagonals of the rhombus.
The perimeter (from diagonals) is calculated as thus:

Substitute values for JL and KM





<em>Hence, the perimeter is 104 units</em>