Step-by-step explanation:
make another column with the heading difference. now, the difference between the children's ages will always be the same. so now you have to make the ratio the same.
NOW:
Child A:Child B:difference
3: 2 : 1(3units-2 units)
10 years later
Child A:Child B:difference
7: 6. : 1(7 units-6 units)
since the difference us the same for both ratios, now we can compare between both sets of ratios.
take for example child A:
the number of units increased in 10 years is 7 units-3 units=4 units
4 units is 10 years
1 unit is
and therefore one child is 5 years old and the other is 7 and a half.
NOTE: IT IS THE SAME IF YOU USED CHILD B.
take for example child B:
the number of units increased in 10 years is 6 units-2 units=4 units
and if you continue to solve, you will find that you arrive at the same answers.
hope this helps!!!!
Answer is C
Mrs, Nevin can use all of theese fabric for making costume for a school party.
But length of the fabric in C are bigger than she need. So small part of the fabric will not be used after costume prepeared. So shee need to choose between other three variants for prepearing the costume for a school play.
Answer:
Step-by-step explanation:
Begin by transferring 1/10 x to the right hand side.
y = - 1/10 x + 3
Since the equations are identical, they have infinitely many solutions.
Answer:
Step-by-step explanation:
The answer is 33.2