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3 years ago

A = 27 + 0.3 C

SAT

1 answer:

vlabodo [156]3 years ago

7 0

Answer:

The amount of potassium chloride that can dissolve in water increases by 0.3 grams for every 1 degree Celsius increase in temperature.

Explanation:

Given

$A = 27 + 0.3C$

Required

Interpret 0.3

We make use of the following illustration to answer this question.

Let C = 1

$A = 27 + 0.3*1 = 27 + 0.3 = 27.3$

Let C =2

$A = 27 + 0.3*2 = 27 + 0.6 = 27.6$

Let C = 3

$A = 27 + 0.3*3 = 27 + 0.9 = 27.9$

Notice that when the values of C increases by 1(i.e. from 1 to 2 and 2 to 3), the values of A increases by 0.3

i.e.

$27.9 - 27.6 = 27.6 - 27.3 = 0.3$

Hence, option D is true

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Adam can clean a room in 3 hours. If his sister Maria helps, they can clean it in 2 2/5 hours. How long will it take Maria to do

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Adam can clean a room in 3 hours. If his sister Maria helps, they can clean it in 225 hours. How long will it take Maria to do the job alone?
2 2 = 12 Together time, 2 2 , needs to be converted to fraction 555
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1+1= 5 Usingreciprocals,addtheindividualtimesgivestotal 3 x 12
1

1(12x) + 1(12x) = 5(12x) 3 x 12
4x+12=5x −4x −4x 12=x It takes Maria 12 hours
Multiply each term by LCD of 12x
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Answer is - 12 hours

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2 years ago

Forms of money in the united states consist of paper money, coins, and _____.

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Answer: "checking account balances"

Explanation:

If you had the options:

bartering

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The option "checking account balances" is the answer to your problem. In simple terms, this is the "money you have in the bank."

<em>Learn more about your problem here: brainly.com/question/678565</em>

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1 year ago

Read 2 more answers

In a recent survey, 1358 arizona state university students were asked about their plans after graduation. The following results

lisov135 [29]

The answers to the given questions on the survey of students by the use of a Venn Diagram are;

A) Venn diagram attached

B) 57 Students

C) 811 Students

D) 785 Students

E) 67 Students

<h3>Understanding Venn Diagrams</h3>

We are given;

Total number of Students = 1358

Number of Students that plan to get a new job = 1194

Number of Students that plan to attend graduate school = 306

Number of Students that plan to buy a new car = 547

Number of Students that plan to do all three things = 46

Number of Students that plan to only attend graduate school = 28

Number of Students that plan to get a job and buy a new car, but not attend graduate school = 432

Number of Students that plan to get a new job and attend graduate school = 221

A) I have drawn a Venn Diagram to depict this given numbers of students and I have attached it.

B) From the venn diagram, we can see that the number of people that plan to attend graduate school and buy a new car, but not get a new job = 57

C) From the Venn diagram, we can calculate the number of students that do not plan to buy a new car is;

541 + 175 + 28 + 67 = 811

D) From the venn diagram, we can calculate the number of students plan to get a new job or buy a new car as;

541 + 175 + 12 + 57 = 785

E) From the venn diagram, we can see that the number of students that do not plan to get a new job, attend graduate school, nor buy a new car is; 67

The complete part of the question is;

A) Draw a Venn diagram that represents the situation consisting of 2. cardinalities.

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C) How many students do not plan a buy a new car?

D) How many students plan to get a new job or buy a new car?

E) How many students do not plan to get a new job, attend graduate school, nor buy a new car?

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2 years ago

For how many three digit numbers (100 to 999) is the sum of the digits even?.

attashe74 [19]

The digital sum of a 3-digit number is even if

• all 3 of its digits are even, or

• 2 of its digits are odd and 1 is even

Count the number of 3-digit numbers, all of whose digits are even:

• the first digit cannot be 0, and otherwise has 4 options (2, 4, 6, or 8)

• the second and third digits each have 5 options (2, 4, 6, 8, or 0)

So there are 4 × 5² = 100 such numbers.

Count the number of 3-digit numbers with 2 odd digits and 1 even digit:

• if the first digit is even, then there are 4 options (2, 4, 6, or 8), and the other two digits each have 5 options (1, 3, 5, 7, or 9)

• if the first digit is odd, then there are 5 options (1, 3, 5, 7, or 9); if the second digit is also odd, it has the same 5 options; then the third digit is even and has 5 options (2, 4, 6, 8, or 0)

Swapping the second and third digits in the last case gets the same amount of numbers; we're effectively multiplying by the number of permutations of 2 objects taken 2 at a time, 2!.

So there are 4 × 5² + 2! × 5³ = 350.

Then there is a total of 450 3-digit numbers whose digital sums are even.

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2 years ago

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pishuonlain [190]

Answer:

A Positive

Explanation:

I got the question right on the test.

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2 years ago