Answer:
66 2/3 mL
Step-by-step explanation:
Let v represent the volume in mL of added 30% solution. Then the amount of salt in the mix is ...
0.10×100 +0.30×v = 0.18(100 +v)
0.12v = 0.08(100) . . . . .subtract (0.18v +0.10×100)
v = 8/0.12 . . . . . . . . . . . divide by the coefficient of v
v = 66 2/3 . . . . mL
Adding 66 2/3 mL of 30% salt solution to 100 mL of 10% salt solution will make 166 2/3 mL of 18% salt solution.
Answer:
2, the second number line.
Step-by-step explanation:
-1 x 1/2 = -0.5
Answer:
(x,y)(0.4x, 0.4y) is the answer for your question
Answer:
Simplify the matrix.
2√5=3=3,31,1,−3.5
Step-by-step explanation:
part c and b arent clear but the answer to a is this:
if you want to find 40% of something, start with finding 10% then multiplying by 4 to get 40%. 10% of 24.99 is 2.49. 2.49 times four is 9.96. so thats 40% of 24.99.
to find the price, subtract 9.96 from 24.99.
you get $15.03