The short-run aggregate supply curve is most likely to shift to the right if _____. rev: 06_12_2018 Multiple Choice productivity
decreases input prices decrease sales taxes increase wages increase
1 answer:
Answer:
input prices decrease.
Explanation:
Aggregate supply is also called domestic final supply is the total supply of goods and services that is made available in an economy in a given period of time. It looks at the national supply of all goods and services.
If there is a decrease in input prices, supplier's cost of doing business reduces and he will have more money to engage in more production. This will result in increased production and a shift of aggregate supply curve to the right.
This is illustrated in the attached diagram.
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Answer:
Ans. He must use 2,987.76 pounds of alloy X (Cu=69%) and 2,365.24 pounds of alloy Y (26%=Cu)
Explanation:
Hi, let´s call alloy X the alloy that contains 69% of Cu and alloy Y the one containing 26% of Cu. Since he needs to produce 5,353 pounds of alloy, the first equation that we need to use is the following.
Now, we need this 5,353 pounds of the new alloy to be 50% Cu, therefore, we have to use a portion of alloy X and alloy Y. This is as follows.
And we have already established that X+Y is equal to 5,353, therefore this equation should look like this.
And we solve for X this equation, this as follows.
Now, we use this result and substitute this for X in the first equation like this.
and then, we solve for Y
So, he needs to use 2,365.24 pounds of alloy that contains 26% of Cu, this means that the rest (2,987.76 pounds) must come from the alloy that contains 69% of Cu.
We can check this result by finding the overall Cu obtained by this amounts of alloy, that is
That adds up to 2,676.51 pounds of pure Cu, and since the total weight of the new alloy is 5,353, this amount of copper makes up for:
50% of the total weight.
Best of luck.