Answer:
1.5
Step-by-step explanation:
An equation 10(23+7)=100ℓ+100ℓ is given and we are asked to find the value of ℓ.
To solve the equation, we have to move all the values containing ℓ on one side and other values on other side of equality.
10(23+7)=100ℓ+100ℓ
Multiply 10 with 23 and 7 which gives
(10 * 23 ) + ( 10 * 7) = 200 ℓ
Solving the above equation,
230 + 70 = 200 ℓ
300 = 200 ℓ
=> ℓ = 300 / 200
=> ℓ = 3/2
=> ℓ = 1.5
Answer:
Y= -1/3x +2.5
step-by-step explanation:
first I reconfigured the given equation: x+3y=15
-x+x+3y=15 -x Subtracted x from both sides
3y=15-x Simplify
3y/3=15-x/3 Divide both sides by 3
y=-1/3x+3 Simplify
I turned it into y=-1/3x+5
then I translated the line up and down to find what point crossed (6,1)
The proper value for B in y=mx+b was 2.5
Try using Desmos online calculator it really helps
Hope this helped :)
Answer:
Step-by-step explanation:
Let l litre of 7 grams of salt per litre is combined with x litres of water which contains y grams of salt per litre to yield a solution with 2 grams of salt per litre.
Thus,
Salt in l litre + salt in x litre = salt in resultant mixture
7l + xy = 2(l +x)
7l + xy = 2l + 2x
7l - 2l = 2x - xy
5l = x(2-y)
Hence, 
litres of 7 gram of salt per litre is mixed.
503
x 9
———
4,527
This works good with the factors because you work step by step, making an equation like this one
