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3 years ago

14

A metal alloy that is made up of 15% aluminum is combined with a metal alloy that is 35% aluminum. If the result is 400 kilogram

s of 27.5% of aluminum alloy, then how much of each alloy was used

1 answer:

jeyben [28]3 years ago

8 0

55 kilograms of aluminum and 345 kilograms of the other metals

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The enrollment of a school was 1200. Since then, it has increased at a rate of 35 students per year. Write an equation to repres

Romashka [77]

The general equation to represent the enrollment of the school each year after 2000 = 1200 +35 n

where n = number of years after 2000.

Step-by-step explanation:

Here, according to the question:

The initial number of students enrolled in the school = 1200 students

The number of students increased each year = 35 students

Now if the initial year is 2000, then the number of student in the first year

= Initial enrollment + ( n x Number of students increasing each year )

where n : The total number of years after 2000

So, the number of students in first year after 2000 for n = 1 is

1200 + ( 1 x 35) = 1235

The number of students in second year after 2000 for n = 2 is

1200 + ( 2 x 35) = 1270

The number of students in third year after 2000 for n = 3 is

1200 + ( 3 x 35) = 1305

Hence, the general equation to represent the enrollment of the school each year after 2000 = 1200 +35 n where n = number of years after 2000.

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2 years ago

Suppose the required reserve ratio is 20 percent. If banks are conservative and choose not to loan all their excess reserves, th

maria [59]

Answer:

Option B

Step-by-step explanation:

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REY [17]

<h2>Answer:</h2>

The answer is 25 minutes

<h2>Step-by-step explanation:</h2>

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3 years ago

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Dmitry [639]

Answer:

1 1/4 hours

Step-by-step explanation:

.75/.6=x/1

cross multiply

.75=.6x

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2 years ago