Answer:
Solution: { -29/3 , -10/3 }
Step-by-step explanation:
2y = x + 3 ---------> equ 1
5y = x - 7 equ 2
equ 1 - equ s ====> -3y = 10
y = -10/3
Put y = -10/3 in equ 1
2 * (-10/3) = x + 3
-20/3 = x + 3
(-20/3) - 3 = x
(-20/3) - (9/3) = x
(-20 - 9) / 3 =x
x = -29/3
Solution: { -29/3 , -10/3 }
True because if you are multiplying any number by a fraction smaller than 1, you are practically dividing it so the number become smaller. For example, multiplying by 1/2 is findind the half so its gonna get smaller.
KILO=1000.............. MILLI= thousandth
1kg is 1000 grams
1 milligram is one thousandth of a gram, so a 1 gram = 1000mg.
in 36 kg, then there are 36 * 1000 grams.
and in (36*1000) grams there are (36*1000)*1000 mg, 36,000,000 mg.