Once you replace figures with letters,it's simple algebra. Let's say a circle is "x",square is "y" and triangle is "z". Change the equations into ones with letters: 2x=10 x*y+y=12 x*y-z*x=x
Multiply/divide where needed... x=5 Once you know how much is x,you can search for y:
xy+y=12 5y+y=12 6y=12 /:6 y=2
And all we have left is z,the triangle...once having x and y,it's a piece of cake-just replace the right letters in the last equation:
You write 5.2 - 9.5 = 5 --> I thought in maths you first have to do the multiplication, and afterwards the minus ... so (5.2 ) = 10 and (1.5) = 5 10 - 5 = 5
It can't be 9 because in Algebra you do multiplication first, then addition or subtraction. So you would do 5 x 2 first, then the 2nd half of the equation which is (triangle x 5) before you would subtract them.
Driehoek = 9
VálaszTörlésopgelost in 7 sec
VálaszTörlésdriehoek is 9
VálaszTörlésEzt a megjegyzést eltávolította a szerző.
VálaszTörlésOnce you replace figures with letters,it's simple algebra. Let's say a circle is "x",square is "y" and triangle is "z". Change the equations into ones with letters:
Törlés2x=10
x*y+y=12
x*y-z*x=x
Multiply/divide where needed...
x=5
Once you know how much is x,you can search for y:
xy+y=12
5y+y=12
6y=12 /:6
y=2
And all we have left is z,the triangle...once having x and y,it's a piece of cake-just replace the right letters in the last equation:
xy-zx=x
5*2-z*5=5
10-5z=5 /+5z
10=5+5z /-5
5z=5
z=1
Circle=5
Square=2
Triangle=1
1
VálaszTörléscirkel + cirkel = 10 dus cirkel =5 => 5 + 5 = 10
VálaszTörlésstel vierkant = x => 5*x +x = 12 <=> 5x + 1x = 12 <=> 6x = 12 <=> x= 12/6 <=> x = 2
vierkant = 2
stel driehoek = y => 5*2 - y * 5 = 5 <=> 10 - 5y = 5 <=> -5y = -5 <=> y = 1
1
VálaszTörlésDriehoek is 8
VálaszTörlés
VálaszTörlés5+5=10
5.2+2=12
5.2-9.5=5
You write 5.2 - 9.5 = 5 --> I thought in maths you first have to do the multiplication, and afterwards the minus ... so (5.2 ) = 10 and (1.5) = 5
Törlés10 - 5 = 5
triangle is 1
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VálaszTörlésHeb geen hogere studies kunnen doen maar wist het na een paar seconden. Niks algebra ,gewoon gezond verstand
VálaszTörlésHeb geen hogere studies kunnen doen maar wist het na een paar seconden. Niks algebra ,gewoon gezond verstand
VálaszTörlésjust 9 and works
VálaszTörléscircle=x square=y triangle=z
VálaszTörlésX + X =10
2X = 10
X = 10/2=5
5*y+y=12
5y + y =12
6y=12 y=12/6=2
5*2-z*5=5
1st solution 5*2=10-z*5=5 10-z=5/5=1 -z=1-10=-9 z=9
2nd solution 5*(2-z)*5=5 (10-5z)*5=5 10-5z=5/5 = 1
It can't be 9 because in Algebra you do multiplication first, then addition or subtraction. So you would do 5 x 2 first, then the 2nd half of the equation which is (triangle x 5) before you would subtract them.
VálaszTörlés