If x equals 2 and y equals 1/4 , the equation is 2 • 2 + 1/4 • 3
and that equals 4.75
160 x 4 =? ~a~
~b~ solve the equation i gave you
Multiply first equaton by 2 and add to the other equation
6x+6y=12
<u>5x-6y=15 +</u>
11x+0y=27
11x=27
divide both sides by 11
x=27/11
sub back
3x+3y=6
divide both sides by 3
x+y=2
(27/11)+y=2
2 and 5/11+y=2
minus 2 and 5/11 both sides
y=-5/11
x=27/11
y=-5/11
(27/11,-5/11)
18 divided by 3... 3 times 6
14 divided by 7... 7 times 2
12 divided by 3 ... 3 x 4
Answer
668 + 232 ones = 900
or
668 + 23 tens + 2 ones = 900
or
668 + 2 hundreds + 32 ones = 900
or
668 + 2 hundreds + 3 tens + 2 ones.
<u>Explanations</u>
900 - 668 = 232. Meaning we can add 232 ones to 668 to get 900.
232-200 = 32 ⇒ Meaning, we can add 2 hundreds and 32 ones to 668 to get 900.
32-30 = 2. This means we can add 2 hundreds, 3 tens and 2 ones to 668 to get 900.
900 - 668 = 232
