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defon
2 years ago
5

PLZ HURRY! Kaylie wants to see how metals can be combined. She found a problem to solve. Help her solve it! How many pounds of a

metal containing 20% nickel must be combined with 6 pounds of a metal containing 80% nickel to form an alloy containing 60% nickel?
A. 4 pounds
B. 3 pounds
C. 2 pounds
D. 5 pounds
Mathematics
1 answer:
Mrac [35]2 years ago
4 0

Answer:I think it might be c

Step-by-step explanation:

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Pretty easy question just stuck please help ASAP
Dima020 [189]

Answer:

SA = 300 cubic yards

Step-by-step explanation:

SA = 12(5) + 8(12 + 13 + 5)

7 0
3 years ago
The house keeping staff
kvasek [131]

Answer:

In general, housekeeping departments are in charge of keeping buildings clean. They sweep, mop, dust, vacuum and clean the bathrooms. They also clean windows and public areas, and often remove trash and deposit it in the building's dumpsters.

Hope this helps :)

4 0
3 years ago
The expression x^4 - 16 is equivalent to :
Zanzabum
The correct answer is b
8 0
3 years ago
Read 2 more answers
Can you please help with this question about exponential equations?
RSB [31]

Since t represents the number of years passed since 2005, in 2005 we have t=0, and in 2015 we have t=10. Let P_J(y),P_D(y) represent the profits of Jones and Davis, respectively, at year y.

We have

P_J(2005) = 10(0.99)^0 = 10,\quad P_J(2015) = 10(0.99)^{10}\approx 9

P_D(2005) = 8(1.01)^0 = 8,\quad P_D(2015) = 8(1.01)^{10}\approx 9

Choosing the best company somehow depends on how much time you can wait: Jones start with a higher value (10 vs 8), but it has a descending trend, because the multiplicative factor 0.99^t goes to zero as t grows.

On the other hand, Davis starts with a smaller value, but 1.01^t tends to infinity as t grows.

So, if you need an immediate result, the most valuable company is Jones, otherwise you're certain can Davis will eventually become bigger.

More precisely, we have

8\cdot 1.01^t = 10\cdot 0.99^t \iff 0.8 = \left(\dfrac{0.99}{1.01}\right)^t \iff t\approx 11

So, after 11 years, Davis will overcome Jones.

3 0
3 years ago
Question 9 of 12
AfilCa [17]
The answer is D 1/2
Cos of 60 = 0.5
Which 0.5 as a fraction is 1/2
3 0
2 years ago
Read 2 more answers
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