Mary Seitz invested a certain amount of money in a savings account paying ​3% simple interest per year. When she withdrew her money at the end of 3​ years, she received in $3900 interest. How much money did Mary place in the savings​ account?

Answers

Answer 1

Answer:

351

Step-by-step explanation:

3%=0.03

3900*0.03*3=351


Related Questions

What is the slope of the line that goes through the points (9.4) and (3,6)?
(m= ..?)

Answers

The slope is the difference in y for every increase in x. So we can divide:
(Y2-y1)/ (x2-x1)
= (6-4)/(3-9)
= 2/-6
= -1/3

Which means that for every increase in x, y decreases by 1/3.

Which equation represents a line with a slope of -1 that passes through (0, 4)?

Answers

Answer:

ajhbdlahv

Step-by-step explanation:

ajksl

please what's -4/5 - -3/5

Answers

Step-by-step explanation:

-4/5 - -3/5

-4/5 + 3/5

(-4+3)/5

=-1/5

the answer for -4/5 - -3/5 is  −1/5

represent the following situations using quadratic equation in standard form
1. If the square of a number is added to 8 times the number, the result is 100
2. Mr. Apoloan wants to lay out a rectangular playground with an area of 30 square feet. The desired length will be 7 times the width​

Answers

1. If the square of a number is added to 8 times the number, the result is 100.

Let x be the number.

Equation: x² + 8x - 100 = 0

2. Mr. Apoloan wants to lay out a rectangular playground which will contain 30 square feet. The desired length will be 7 times the width.

Area: 30ft²

Length: 7w

Width: w

Area of a rectangle: LW

(7w)w = 30ft²

Equation: 7w² - 30 = 0

how many 5 digit numbers can be formed using all the digits 1, 2, 3, 4, and 5, such that the number is odd and greater than 40000?

Answers

Answer:

25

Step-by-step explanation:

Find the exponential function that satisfies the given conditions:
Initial value = 66, decreasing at a rate of 0.5% per week (5 points)

f(t) = 0.5 ⋅ 0.34t
f(t) = 66 ⋅ 1.5t
f(t) = 66 ⋅ 0.995t
f(t) = 66 ⋅ 1.005t

Answers

Answer:

C. f(t) = 66 * 0.995^t

Step-by-step explanation:

Required function is:

f(t) = 66*(1 - 5/100)^t = 66*0.005^t

The matching option is C

What is the slope, m, of a line perpendicular to the line 2x+3y=6

Answers

Answer:

m = 3/2

Step-by-step explanation:

3y = -2x + 6

y = -2/3x + 2

Perpendicular slope = inverse = 3/2

what other information is needed to prove the two triangles congruent by sas?

Answers

Answer:

We know that one pair of sides and one pair of angles are congruent from the diagram. In order to know that the triangles are congruent by SAS we need to know that the pair of sides on the other side of the angle are congruent.

Step-by-step explanation:

HOPE IT HELPS :)

8x - 3x + 2 - x = ax + b
solve for b

Answers

Answer:

b = -ax + 4x + 2

Step-by-step explanation:

8x - 3x + 2 - x = ax + b

~Combine like terms

4x + 2 = ax + b

~Subtract ax to both sides

4x - ax + 2 = b

~Rewrite

b = -ax + 4x + 2

Best of Luck!

find all natural numbers n such that 1+3+5+7+...+(2n-1) sum is divisible by 4

Answers

n ∈ natural even numbers

Step-by-step explanation:

1 + 3 + 5 + 7 + … + (2n-1)

a = 1b = 2Uₙ = 2n - 1

sum of the first n terms :

Sₙ = n/2(a + Uₙ)

Sₙ = n/2(1 + 2n - 1)

Sₙ = n/2(2n)

Sₙ = n²

∴ so, the solution of n is all natural even numbers

Refer to the attachment

What is the missing value?

Answers

Answer:

I guess 5⁴ is Missing value

In today’s lesson you voted a sheet of paper multiple times. Identify the rectangles that were scaled copies of your original rectangle sheet of paper. Use the image to help.

Answers

I think that the answer will be

C,E

 please help me quickly

no random links i will report :)

Answers

Answer:

B

Step-by-step explanation:

help!!! math-----

------------

Answers

The answer would be B and D because the slope stays consistent throughout the entire table unlike all of the other options.

B and D because in B the frequency is consistently jumping 6 forward and in D it’s jumping by 5 in all the frequencies.

A serving of rice is 3/4 of a cup. How many servings are there in a 3 3/4-cup bag of rice?

Answers

Answer:

16 I think

Step-by-step explanation:

Find the y-intercept of the line on the graph.

Answers

Answer:

The y-intercept is 0

Step-by-step explanation:

The line crosses the y-axis at the center, 0. Therefore the y-intercept is 0.

Answer: -1

Step-by-step explanation:

Find the slope of the line represented by each table of values

Answers

Answer:

-5 is the slope

Step-by-step explanation:

Here is the formula

y2-y1

____

x2-x1

If each person paid an equal amount, who would save the most money? Explain your reasoning using at least two complete sentences

Answers

What people??? No detail Lol

PLS FINDD THIS THIS IS DUE IN 10 MINNNNNN!!! PLEASE DO WITH CLEAR STEPSS!!! I'LL MARK U BRAINLIEST

Answers

Answer:

There is no question to answer.

Step-by-step explanation:

Answer:

Where is the question ?

A bee colony produced 0.5 pounds of honey, but bears ate 0.2 pounds of it. How much honey
remains?

Answers

Answer:

0.3 pounds

Step-by-step explanation:

[tex]0.5 - 0.2 = 0.3[/tex]

Is this list of numbers an arithmetic sequence?
18,16,14,12,10,…

Answers

Answer:

YesStep-by-step explanation:

sequence of numbers such that the difference between the consecutive terms is constant.

the constant is 2 (Ex. 18-2=16-2=14....) and your answer is

yes

A cube has a side length of 12 inches. The cube is divided into 8 equal sized sections. What
is the volume of each section?

Answers

Answer:

216 cubic inches

Step-by-step explanation:

To find the volume of just the cube:

12 x 12 x 12 = 1728

then to find the volume of the section:

1728/8 = 216

Owen is fishing. he starts with the bait 2 feet below the water. he reels out the bait 19 feet, then he reels it back in 7 feet. what is the final position of the bait

Answers

Answer:

the answer is 14

Step-by-step explanation

the math problem is just 2+19-7 or 21-7

In 1846 the depth of the river was 5 feet deep. In 1847 it dropped to 3.2 feet. This year, 1848, it rose to 6.8 feet. Find the percent for EACH change in river depth

Answers

Answer:

1846= 0% change

1847= 3.2/5 ×100 = 64% decrease in river

1848= 6.8/3.2 ×100 = 212.5% increase

( used 3.2 because that was the last record)

Plz complete the table

Answers

Answer:

2 and 2

8 and 4

Step-by-step explanation:

Plug the respective x values in to find the y-values or use a GDC.

Could someone please help answer this, please no spam, thank you will give brainliest, (homework help)!

Answers

Answer:

[tex]3b + 3 < - 18 \\ 3b + 3 - 3 < - 18 - 3 \\ 3b < - 21 \\ 3b \div 3 < - 21 \div 3 \\ b < - 7[/tex]

I hope I helped you^_^

Solve the simultaneous equations x + 3 y = 14
− x + 2 y = 6

Answers

Answer: x=2 y=4

Step-by-step explanation: elimination method attached below.

A fierce guard dog is tethered by a 15 m chain to a post that is 6 m from a straight path. For what distance along the path is a trespasser in danger from the dog?​

Answers

The distance from the road where an intruder would be in danger is 27.48 m.

To know how far from the road an intruder is in danger due to the dog, it is necessary to carry out the following procedure:

Establish the range of the dog with a circle of 15 meters in radius around the post on which he is tied.

In this part it can be inferred that a part of the path is in the range of the dog between points B and D (In this area the intruder would be in danger)

From this we know the following data:

Length AB = 15mLength AD = 15mLength AC = 6m

To know the length of points BC and CD we must perform a calculation using the formula of the Pythagorean theorem.

BC = [tex]\sqrt{15^{2} - 6^{2} }[/tex]BC = [tex]\sqrt{225-36}[/tex]BC = [tex]\sqrt{189}[/tex]BC = 13,74 m

Later we use the same procedure to find the length CD.

CD = [tex]\sqrt{15^{2} - 6^{2} }[/tex]CD = [tex]\sqrt{225-36}[/tex]CD = [tex]\sqrt{189}[/tex]CD = 13,74 m

Finally, we add both lengths (BC + CD) to know the distance in which an intruder is in danger within the dog's range.

BC + CD = BD = 27,48 m

Learn more in: https://brainly.com/question/14930619

Mai sold t- shirts at a festival and made a profit of $83. She made $5 for each t-shirts she sold. Her total expenses were. How many t-shirts did she sell

Answers

Answer:

21 T-shirts, (this is just a thought of what i think i need to do) Hope it helps

Step-by-step explanation:

I think iv seen this question somewhere so did u forget to put 22?

Here is the explaination if u did...

5T -22 = 83

revenue minus expense = profit

5T = 83+22 = 105

T = 105/5 = 21 T shirts sold

PLEASE HELP QUICK! 50 POINTS IF YOU HELP!!
I WILL GIVE PERSON BRAINLY IF THEY GET IT RIGHT!!!
match the equations of the lines with their graphs.

Answers

Answer:

Assuming the graphs are abcd, 1 is b, 2 is c, 3 is a, and 4 is d.

Step-by-step explanation:

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