We know that 1 gram = 10 decigrams
That means that 650 * 10= 6500
Hope this helps!
519.99(.0825) = 42.899
519.99 + 42.899 = $562.89
Answer:
Step-by-step explanation:
Answer:
(7-2x)3 =9-10x
x= -3
Step-by-step explanation:
we let the number to be x.
twice a number=2x is decreased by 7 that is to say 7-2x, is multiplied by 3, we have (7-2x)3.
the result is 9 less than 10times the number which is =9-10x.
so bringing all these together we have;
(7-2x)3=9-10x.
what is the number?
solving, we have:
(7-2x)3=9-10x
21-6x=9-10x
21-9= -10x+6x
12= -4x
dividing both sides by -4 we have our number
x= -3.
for proof we can substitute x=-3 into the equation.
21-6(-3) =9-10(-3)
21+18=9+30
39=39
Answer:
x=1
y=3
Step-by-step explanation:
x+y=4
2y-4x=2
x=4-y
2y-4(4-y)=2
2y-16+4y=2
6y=18
y=3
x=4-3
x =1
