Answer:
1120 grams
Step-by-step explanation:
The amount of sea water is directly proportional to the amount of salt in the water.
Let the amount of sea water be W and the amount of salt be S.
This means that:
W α S
=> W = kS
where k = constant of proportionality
2 liters of sea water contain 70 grams of salt Therefore:
2 = k * 70
k = 2 / 70 = 1/35
Therefore, for 32 liters of sea water:
32 = 1/35 * S
S = 35 * 32
S = 1120 grams
There are 1120 grams of salt in 32 liters of water.
Answer:
7.3
Step-by-step explanation:
D-75÷8=2
P.E.M.D.A.S
parenthesis, exponents, multiplication, division, addition, subtraction
Which on comes first would be
Division
75÷8= 9.3-D=2
9.3
-2.0
-----
7.3
So, D would equal 7.3.
Answer:
Yes, it is a solution
Step-by-step explanation:
9x+7y=-11
-2x-5y=30
substitute 5 for x and -8 for y and test:
9(5)+7(-8)=-11
45-56=-11 , this is true
-2(5)-5(-8)=30
-10+40=30 , this is true also
Answer:
Its 15 (x=15)
Step-by-step explanation:
I mean 15-3 is 12
