Answer:
x= -3 and y = 6
Step-by-step explanation:
so basically what you are trying to do is reduce into finding x and y
what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which
so,...
we can do
either 20x or 15y
we will go with the smallest 15y
so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second
5 x 5x+3y=3 --> 1
3 x 4x+5y=18 --> 2
we then get
25x+15y = 15 -->1
12x + 15y = 54 -->2
then now that you have the same Y values you can subtract ! which cancels out both the 15y
25x+15y = 15 -->1
- 12x + 15y = 54 -->2
13x =-39
so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with !
x = -3
5(-3) +3y =3
-15 + 3y = 3
3y = 3+15
3y=18
y = 6!
Answer:
1.8
Step-by-step explanation:
there are 100 cementers in a meter, 1000 millimetres in a meter, 1000/100=10 ,so 18/10=1.8
Answer:
The correct answer would be negative 1 over 6 also written as -1/6
Step-by-step explanation:
HAVE A GOOD DAY!
B.) 10x-5 is equivalent to 6x – 5 + x + 3x
Answer:
Length , time, mass, current, temperature, amount of mass, luminous intesity
m, sec, kg, A, K, mol, cd
Step-by-step explanation:
Seven basic SI units are used for measurement of
Meter for length
Second for time
Kilogram for mass
Ampere for current
Kelvin for temperature
Mole for amount of mass
Candela for luminous intensity
Symbols of these SI units are
m for meter
sec for second
kg for kilogram
A for ampere
K for kelvin
mol for mole
cd for candela
