after 9 months, the simple interest earned on an investment of $1200 is $72. find the interest rate.

Answers

Answer 1
Use the formula i=prt, where i is the interest earned, p is the principal, r is the rate (as a decimal fraction) and t is the elapsed time, in years.

Here i = $72 = $1200 r (9/12)                    (9 months is 9/12, or 3/4, of 1 year)
Reducing, 
              $72 = $900r
                                          Solving for r, r=0.08, or 8 percent per year.

Related Questions

Line M passes through the points (–5, 9) and (–1, 9).

Answers

Line M is a horizontal line with a slope of zero

Let me tell you why, first the y intercepts are not changing, the x intercepts are just changing which means that the line will be horizontal. You can also prove this by actually graphing the points and connecting the dots.

Two, a horizontal line always has a slope of zero, slope is rise over run, when rise = 0, no matter what the run is the slope will be zero. 
For example 0/9 = 0, 0/1 = 0. 

How many radians are contained in a central angle that is 2/3 of a circle?

Answers

[tex]\bf \stackrel{full~circle}{2\pi ~radians}\impliedby \textit{how much is }\frac{2}{3}\textit{ of that?} \\\\\\ 2\pi \cdot \cfrac{2}{3}\implies \cfrac{4\pi }{3}~radians[/tex]

The radians that are contained in a central angle that is 2/3 of a circle will be 4π / 3 radians.

What is an angle?

The inclination is the separation seen between planes or vectors that meet. Degrees are another way to indicate the slope. For a full rotation, the angle is 360°.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The central angle that is 2/3 of a circle will be given as,

⇒ 2π × (2 / 3)

Simplify the expression, then we have

⇒ 2π × (2 / 3)

⇒ 4π / 3 radian

The radians that are contained in a central angle that is 2/3 of a circle will be 4π / 3 radians.

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if it takes Joan one and a half hours to watch a movie, how many films can he watch in ten and a half hours

Answers

7 hours 
steps: 

10 1/2 divided by 1 1/2

What is the remainder obtained by dividing x7 x5 1 by the generator polynomial x3 1?

Answers

The remainder obtained by dividing on [tex]{x^7} + {x^5} + 1[/tex] the generator polynomial [tex]{x^3} + 1[/tex] is [tex]\boxed{{-x^2} + {x} +1}[/tex]

Given:

The generator polynomial is [tex]{x^3} + 1.[/tex]

The polynomial is [tex]{x^7} + {x^5} + 1[/tex]

Explanation:

There are two methods of dividing the two polynomials.

(1). Synthetic division

(2). Long division method

The fraction can be expressed as,

[tex]{\text{Fraction}}= \dfrac{{{x^7} + {x^5} + 1}}{{{x^3} + 1}}[/tex]

The denominator of the fraction is [tex]{x^3} + 1[/tex] and the numerator of the fraction is [tex]{x^7} + {x^5} + 1.[/tex]

Divide [tex]{x^7} + {x^5} + 1[/tex] by [tex]{x^3} + 1[/tex] to obtain the remainder and the quotient of the polynomial.

The remainder obtained by dividing on [tex]{x^7} + {x^5} + 1[/tex] the generator polynomial [tex]{x^3} + 1[/tex] is [tex]\boxed{{-x^2} + {x} +1}[/tex]

Kindly refer the image attached below.

Learn more:

1. Learn more about inverse of the functionhttps://brainly.com/question/1632445.

2. Learn more about equation of circle brainly.com/question/1506955.

3. Learn more about range and domain of the function https://brainly.com/question/3412497

Answer details:

Grade: High School

Subject: Mathematics

Chapter: Long division method

Keywords: division, binomial synthetic division, long division method, coefficients, quotients, remainders, numerator, denominator, polynomial, zeros, degree, cubic polynomial, quadratic equation.

Final answer:

To find the remainder of the polynomial division of x^7 + x^5 + 1 by x^3 + 1, one would perform polynomial long division or synthetic division, continuing until the degree of the remainder is less than the divisor.

Explanation:

The student is asking how to find the remainder of a polynomial division. Specifically, they want to know the remainder when dividing x^7 + x^5 + 1 by the polynomial x^3 + 1. To solve this, one would typically use long division of polynomials or synthetic division. The process is similar to long division with numbers. We would start by looking at the highest degree terms of both polynomials and divide them, then multiply the divisor by the result and subtract from the dividend. Repeat this process until the degree of the remainder is less than the degree of the divisor. Since finding the remainder requires us to consider terms up to x^2, we are essentially looking for the result of division that does not perfectly divide, similar to how 7 divided by 3 leaves a remainder.

Marika Perez’s gross biweekly pay is $2,768. Her earnings to date for the year total $80,272. What amount is deducted from her pay for Social Security taxes if the rate is 6.2%? What amount is deducted for Medicare, which is taxed at 1.45%?

Answers

Answer:

The deduction for social Security tax is $4976.86 and the deduction for Medicare tax is $1163.94 .

Step-by-step explanation:

Marika Perez’s gross biweekly pay is $2,768. Her earnings to date for the year total $80,272.

What amount is deducted from her pay for Social Security taxes if the rate is 6.2%?

[tex]0.062\times80272=4976.86[/tex] dollars

What amount is deducted for Medicare, which is taxed at 1.45%?

[tex]0.0145\times80272=1163.94[/tex] dollars

An animal park has 120 gazelles. If the population increase 5% in on year, how many gazelles will the park have next year?

Answers

five percent of 120 is 6 because 120*0.05=6. add 6 to 120 and we have the answer 126 gazells next year

The number of gazelles will the park have next year will be 126 if An animal park has 120 gazelles. If the population increase 5% in on year.

What is percentage?

It's the ratio of two integers stated as a fraction of a hundred parts. It is a metric for comparing two sets of data, and it is expressed as a percentage using the percent symbol.

It is given that:

An animal park has 120 gazelles. If the population increase 5% in on year,

= 5% of 120

= 6

= 6 + 120

= 126

Thus, the number of gazelles will the park have next year will be 126 if An animal park has 120 gazelles. If the population increase 5% in on year.

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Sam gets $1000 dollars per month. She has to spend $20 a day on transportation, she also needs to buy groceries each week and have $30 extra spending money per week. How much money should be spent on food per day?

Answers

Sam makes 1,000 dollars every month. How much does she make per day?
1,000 ÷ 30 = $33.33/day. This is her daily budget.
Transportation cost = $20/day. 
Spending money/day = $30/week ÷ 7days/week = 4.28 /day

Daily Budget:
33.33 = transport  + spending money + groceries
33.33 = 20 + 4.28 + groceries           Subtract 24.28 from each side:
9.05 = groceries
$9.05 per day should be spent on groceries, assuming she doesn't want to save any of her income. 

Which of the following is an example of a proper fraction?

A. 7⁄6
B. 4⁄3
C. 3⁄4
D. 4⁄4

Answers

C. 3/4 because the numerator is smaller than the denominator
3/4 is a proper fraction because it is less than 1 and the numerator is less than the denominator.

Hope this helps!

Tina has put 15 of her old CDs in a storage crate. How many more CDs can she store in the crate if it can hold no more than 23 CDs

Answers

23-15=8 I think the answer is 8


Since she can only have 23 in the crate, and she already has 15, you subtract 15 from 23.

23 - 15 = 8

She can only fit 8 more CDs.

Hope this helps!


Last year Mr. Henderson paid a total of $98.40 for phone service and $79.20 for garbage pick up what was his average cost per month for phone service and garbage pick up?

Answers

To calculate the values do x / 12

So 98.4 / 12 = 8.2 and next part 79.2 / 12 = 6.6

Mr. Henderson spent $8.2 a month for phone service and $6.6 for garbage pick up.
Let A = average for both

A = (97.40 + 79.20)/2

You finish.

Which graph represents the function y=2/3x-2

Answers

We can graph y = 2x/3 - 2 to find the line.

We know one point, which is the y-intercept. The y-intercept is (0,-2) so that is our first point. Plot that point on the chart. Now to find another point, we can just insert a number for x and solve for y. I am going to use the number 3.

 y = 2x/3 - 2 
 y = 2(3)/3 - 2 
 y = 6/3 - 2 
 y = 2 - 2 
 y = 0
So when x = 3 y = 0. We have another point,which is (3,0) Plot the points (0, -2) (3, 0) and draw a line between the points and that is your graph. It will look the image I attached.



Answer:

Here you go! used a graphing calculator for accuracy.

Step-by-step explanation:

In his bookstore Toby places 21 books on shelves with 7 books on each shelf how many shelves does Toby need

Answers

he needs 3 shelves. You need to divide 21 by seven to get your answer

Ms. Winter makes homemade bath soaps and bottles of lotion. In her inventory, she had 48 bath soaps and 64 bottles of lotion. She wants to use all of her inventory to make as many gift baskets as she can use using the same number of bath soaps and the same number of lotion bottles in each gift basket. She will be able to make at most ? gift baskets. Each basket will contain ? bath soaps and ? bottles of lotion.

Answers

Keep in mind that each basket will have S bottles of bath soap and L bottles of lotion, and that S and L are the same for every basket.

The trick here is to determine which common factors 48 and 64 have.
Factors of 48 are 2, 3, 4, 6, 8, 12, 16, 24 and 48.
Factors of 64 are 2, 4, 8, 16.
Note that the common factors are 2, 4, 8 and 16.
Also note that there are a total of 48+64 bottles, all of which must be used.

Since there are more bottles of Lotion than there are bottles of Soap,
the number of Lotion bottles in each basket will be greater than the number of Soap bottles in that basket.  S and L together equal 48+64 = 112.

We want to maximize the number of baskets that can be created.  Call this number N.

N(S+L) = 112.  Because there are more Lotion bottles than there are Soap bottles, S = (48/64)L, or       S = 3L/4

Imagine that N baskets are created.  Each basket will contain L bottles of Lotion and 3L/4 bottles of Soap.

L and S must both be integers, so that we're dealing only in whole, full bottles of lotion and soap.

Let's make a table here:

N         L          S=3L/4          Total # of bottles of S and L
16       4              3                 16(4+3) =112

This was my first guess!        We could make 16 baskets, each containing
                                               4 bottles of lotion and 3 bottles of soap.

Try again:

N         L          S=3L/4          Total # of bottles of S and L
16       4              3                 16(4+3) =112
12       8              6                  12(8+6) = 168 (this doesn't work since 
                                                there are only 112 bottles, total.

The constraints here are as follows:  

1) S is always (3/4) of L:  S = 3L/4, and both S and L must be integers.
2) N(S+L) must equal 112.

There's probably an algebraic solution to this problem.  You might want to think about this and see whether you can create and solve a system of linear equations that produces the same optimal results:

"16 baskets containing 8 bottles of lotion and 6 bottles of soap"
satisfies the requirement that S = 3L/4, and also the requirement that N(S+L)=112.


Officer Brimberry wrote 8 tickets for traffic violations last week, but only 5 tickets this week. What is the percent decrease? Give your answer to the nearest tenth of a percent.

Answers

(Last weeks value-this weeks value)/(Last weeks value)
(8-5)/(8)
3/8=0.375
*100 to get percentage
0.375*100=37.5% decrease

Answer:

The percent decrease is [tex]37.5\%[/tex]

Step-by-step explanation:

we know that

[tex]8\ tickets[/tex] ------> represent the [tex]100\%[/tex]

so

by proportion

Find the percent decrease

[tex]\frac{100}{8}\frac{\%}{tickets} =\frac{x}{(8-5)}\frac{\%}{tickets} \\ \\x=100*(8-5)/8\\ \\x=100*3/8\\ \\x=37.5\%[/tex]

A cube has a volume of 512 mm^3. If all sides of the cube are divided by 4, what will the resulting volume be?

A) 8 mm^3
B) 27 mm^3
C) 7.2 mm^3
D) 12 mm^3

Answers

[tex]\bf \textit{volume of a cube}\\\\ V=s^3\qquad \boxed{s=\frac{s}{4}}\implies V=\left( \cfrac{s}{4} \right)^3\implies V=\cfrac{s^3}{4^3}\implies V=s^3\cdot \cfrac{1}{4^3} \\\\\\ V=s^3\cdot \cfrac{1}{64}\impliedby \frac{1}{64}\textit{ of the original volume, if the original was 512} \\\\\\ 512\cdot \cfrac{1}{64}\implies \cfrac{512}{64}[/tex]

A rectangular room is 22 meters longer than it is wide, and its perimeter is 1616 meters. find the dimension of the room.

Answers

w= width; L= length =w+22m; p= perimeter= 2(L+w)
1616 meters= 2 (L+w) substitute for L
1616m+ 2(w+22m+w) divide each side by 2

808m= 2w+22m subtract 22m from each side
786m=2w divide each side by 2
393m=w Anwer: The width is 393 meters
L=w+22m=393m+22m=415m Answer: The length is 415 meters

if 45 grams of a drug are contained in 200 mL how many grams are contained in 80 ml

Answers

45 g have 200ml
45/200g have 1ml
0.225g have 1ml
0.225*80 have 80 ml
18 g have 80ml

Barbara D’Angelo’s bank granted her a single-payment loan of $1,000 for 100 days at 12% ordinary interest. What is the amount of ordinary interest owed?

Answers

The formula is
I=prt
I interest owed?
P principle 1000
R interest rate 0.12
T time 100days/360days
360 days in a year which ordinary interest means
I=1,000×0.12×(100÷360)
I=33.33. ..Answer

Hope it helps!

Each box holds 10 cartons of milk.there are 300 cartons of milk.how many boxes are there?

Answers

30 is the number mate
300 divided by 10 = 30.


The answer is 30 boxes

Find 14/15−1/3 . Write your answer as a fraction in simplest form.

Answers

The answer is 3/5. Hope this helps! :D

~PutarPotato

Every 3 days Marco fills up his car with gas. Every 8 days he washes his car. On what day will Marco fill his car with gas and wash it?

Answers

I the week starts on Monday he will fill Monday and Saturday and on each Monday he will wash his car

Prove that if b is a square matrix then b+b^t is symmetric

Answers

A matrix [tex]\mathbf X[/tex] is symmetric if [tex]\mathbf X=\mathbf X^\top[/tex]. We have

[tex](\mathbf B+\mathbf B^\top)^\top=\mathbf B^\top+(\mathbf B^\top)^\top=\mathbf B^\top+\mathbf B=\mathbf B+\mathbf B^\top[/tex]

and so [tex]\mathbf B+\mathbf B^\top[/tex] is indeed symmetric.

Which product represents the fraction of the circle that is shaded?

A. 3/4 x 1/2
B. 2/3 x 3/4
C. 1/4 x 3/4
D 3/4 x 3/4

Answers

Answer:

D 3/4 × 3/4

Step-by-step explanation:

The part of the circle that is black is 1/4 of the circle. The remaining 3/4 is divided by the dashed lines into 4 equal parts, so each of those parts is 1/4 of 3/4 of the circle. 3 of the parts are shaded blue, so those represent ...

... 3/4 × 3/4 . . . of the circle

Final answer:

The correct product that represents the fraction of the shaded circle is D. 3/4 x 3/4.

Explanation:

The correct answer is D. 3/4 x 3/4.

The fraction represents the shaded part of the circle. We can determine the shaded area of the circle by multiplying the fraction of the radius by the fraction of the circumference that is shaded. In this case, 3/4 x 3/4 would yield a product that represents the fraction of the circle that is shaded.

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Suppose that one worker can produce 15 cookies, two workers can produce 35 cookies together, and three workers can produce 60 cookies together. what is the average product of the first two workers?

Answers

   I'm not so positive,,, but I believe that the total average of the first two workers is 25

Jackson earned $60 and put 1 5 of those earnings into his savings account. How much did he put into his savings account?

Answers

Answer:

12

Step-by-step explanation:

=1x60

5x1

=60

5

12

What is another way to write 46

Answers

Final answer:

The number 46 can be written as 'forty-six', 'XLVI' in Roman numerals, '101110' in binary, '56' in octal, '2E' in hexadecimal, a sum or product of other numbers, or in scientific notation as 4.6 x 10ⁱ.

Explanation:

There are several ways to write the number 46 in mathematics. One alternative way to express the number is by using words, such as 'forty-six'. Another method is to use Roman numerals, which would be 'XLVI'. Additionally, 46 can be represented in other numerical bases; for example, in binary, it is '101110', in octal, it is '56', and in hexadecimal, it is '2E'. If we dive into mathematics, 46 can also be written as a sum of other numbers, such as 23 + 23, or a product of primes, which for 46 is 2 x 23. Lastly, 46 can be expressed in scientific notation as 4.6 x 10±, though this form is more commonly used for very large or very small numbers.

determine whether each equation is a linear equation. write yes or no. if yes, write the equation in standard form. if the answer is no, circle the part that makes it no

1. y = 4 - 2x

Answers

YES. y = 4 - 2x is a linear equation.

the equation in standard form is;

2x + y = 4

hope this helped, God bless!
Final answer:

The given equation y = 4 - 2x is a linear equation, however, it is not in standard form. The standard form is 2x + y = 4.

Explanation:

The equation y = 4 - 2x is indeed a linear equation. A linear equation is an equation that represents a straight line when graphed. It generally has the form 'y = mx + b' where 'm' represents the slope of the line, and 'b' represents the y-intercept. Here, 'm' is -2 and 'b' is 4.

However, it is not currently in standard form. The standard form of a linear equation is 'Ax + By = C', where A, B, and C are integers, and A and B are not both zero. To write the equation in standard form, we can re-arrange it as 2x + y = 4.

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Which statement proves that PQRS is a parallelogram? The slopes of SP and RQ are both –2 and SP = RQ = . The slopes of RS and QP are both 3 and SP = RQ = . The midpoint of RP is and the slope of RP is . The midpoint of SQ is and SQ = 5

Answers

Answer:

The correct option is 1. The figure PQRS is a parallelogram, if slope of SP and RQ are both –2 and SP = RQ.

Step-by-step explanation:

The opposite sides of a parallelogram are parallel are equal.

In the quadrilateral PQRS,

PQ and RS are opposite sides.

SP and RQ are opposite sides.

The slope of two parallel lines are same.

If the slopes of SP and RQ are both –2. It means SP and RQ are parallel. It is also given that

SP = RQ

Since one pair of opposite sides are equal and parallel, therefore the another set of opposite sides is also parallel and equal.

The opposite sides are prallel and equation, so the quadrilateral PQRS is a parallelogram.

Thus correct option is 1.

The statement that proves that quadrilateral PQRS is a parallelogram is: A. The slopes of SP and RQ are both –2 and SP║RQ.

Properties of the Sides of a Parallelogram

A parallelogram is a quadrilateral having two pairs of opposite sides that are equal and parallel to each other, and also, the slopes of opposite sides of a parallelogram are the same.

Therefore, the statement that proves that quadrilateral PQRS is a parallelogram is: A. The slopes of SP and RQ are both –2 and SP║RQ.

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the sum of the measures of the three of a angles of triangle is 180. In a triangle, the measures of three angles are x,x-5 and x+23. What is the measure of each angle

Answers

x + x-5 + x +23 = 180

 combine like terms:

3x +18 = 180

 subtract 18 from each side:

3x = 162

divide both sides by 3

x = 162 / 3 = 54

Angle x = 54 degrees

 Angle x-5 = 54-5 = 49 degrees

Angle x +23 = 54 +23 = 77 degrees

Sue traveled 96 miles in 12 hours. A unit rate to describe Sue's travel is 8 miles per hour. What is another unit rate in this situation? (1 point) 1/8 mile per hour, 1/8 hour per mile, 1 mile per hour, 8 hours per mile

Answers

96 miles in 12 hrs...

miles / hr = 96/12 = 8 miles per hr

hr / mile = 12/96 = 1/8 hr per mile <==

Answer:

I believe the answer is 1/8 hour per mile

Step-by-step:

I don't know. I  just believe that that is the most reasonable answer to this question and I have this question as well, it might seem hard it's really not.

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