Marcia dissolved 1 kg of salt in 3 litres of water
Bobby dissolved 2 pounds of salt in 7 pints of water
We know that
1 litre = 2.11 pints
We also know that
1 pound = 0.4535 kg
Now if we take the case of Bobby, and convert the pound to
kg then
1 pound = 0.4535 kg
2 pounds = (0.4535 * 2) kg
<span> =
0.907 kg</span>
<span>
= 0.91
kg</span>
Bobby dissolved the salt in 7 pints of water
We know
2.11 pints = 1 litre
Then
7 pints = (7/2.11) litre
<span> = 3.32
litres</span>
So we now see that Bobby has dissolved 0.91 kg of salt in
3.32 litres of water
Marcia dissolved 1 kg of salt in 3 litres of water.
So Marcia has made a more concentrated solution since she
has dissolved more salt in less amount of water whereas Bobby has dissolved
less amount of salt in more water.
Answer:
23/24
Step-by-step explanation:
I hope it will help
You can write an equation.
KL+LM=KM
Enter the info
x+.5+3x-2=3x+1.5
Combine like terms
4x-1.5=3x+1.5
Add 1.5 to both sides
4x-1.5+1.5=3x+1.5+1.5
4x=3x+3
Subtract 3x from both sides
4x-3x=3x+3-3x
x=3
Then, enter 3 into the expression to find LM
3x-2
3(3)-2
9-2
7
LM is worth 7.
I hope this helped!
Answer:
5 & 8
Step-by-step explanation:
x-y = 3 -> x = 3+y
x+y = 13 = 3+y+y -> 3+2*y = 13
2*y = 10 -> y = 5
-> x = 3+y = 8
