She makes $300, 50 multiplied by 6 equals 300
So... the alloy with 5% titanium is ...some alloy :), so is a mixed metal and among its mix it has 5% of titanium, it has other metals, but only 5% is titanium.
that means that if the amount of it is say "x", then the amount of titanium in it will be 5% or (5/100) * x, or
0.05x.
now, the 25% titanium, is the same issue, if say a quantity of "y" will only have 25% of titanium, regardless of other metals, so in "y" there is 25% or (25/100) * y, or
0.25y.
so, we need a mixture that yields only a 13% alloy, or 13/100, and will be 100 grams, so the amount of titanium in it will then be (13/100) * 100 or 13.
how much of the 25% alloy will be needed? well, y = 100 - x.
Answer:
729
Step-by-step explanation:
Go on a calculator and do 9^3 and thats your answer!
Answer:
189.3 unit^2.
Step-by-step explanation:
The total area = area of the rectangle + the area of the semicircle
= 15*10 + 0.5 π*5^2 ( note the radius = 5)
= 150 + 12.5 π
= 150 + 39.3
= 189.3 unit^2.
Answer:
The answer will be D. (2,4)