1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andreyy89
3 years ago
15

Marshall deposited $3,300 in a savings account with simple interest. Six months later, the account held $3,415.50. What was the

interest rate?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
Mathematics
1 answer:
Naya [18.7K]3 years ago
4 0

the simple interest is granted by the end of the year probably.If in 1/2 a year he gathered $115.50 then

115.50=3.300×r/2

r=231/3300

r=7%

You might be interested in
2. Find the midpoint of the segment with endpoints (1,4), (3,6)
I am Lyosha [343]

Answer:

2,5

Step-by-step explanation:

(1+3)/2, (4+6)/2

5 0
3 years ago
Solve for c: <br> 12 - 9 + c = 12
enyata [817]

Step-by-step explanation:

12 - 9 + c = 12

-9 + c = 12 - 12

- 9 + c = 0

Therefore c = 9

Hope this helps.!

6 0
3 years ago
Read 2 more answers
Determine if there is a proportional relationship between the two quantities
Shalnov [3]

Answer:

The table a not represent a proportional relationship between the two quantities

The table b represent a proportional relationship between the two quantities

Step-by-step explanation:

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form k=\frac{y}{x} or y=kx

<u><em>Verify each table</em></u>

<em>Table a</em>

Let

A ----> the independent variable or input value

B ----> the dependent variable or output value

the value of k will be

k=\frac{B}{A}

For A=35, B=92 ---> k=\frac{92}{35}=2.63

For A=23, B=80 ---> k=\frac{80}{23}=3.48

the values of k are different

therefore

There is no proportional relationship between the two quantities

<em>Table b</em>

Let

C ----> the independent variable or input value

D ----> the dependent variable or output value

the value of k will be

k=\frac{D}{C}

For C=20, D=8 ---> k=\frac{8}{20}=0.40

For C=12.5, D=5 ---> k=\frac{5}{12.5}=0.40

the values of k are equal

therefore

There is a proportional relationship between the two quantities

The linear equation is equal to

D=0.40C

7 0
3 years ago
This is a pyramid problem so please help out
Degger [83]

Answer:

Step-by-step explanation:

LA, Laterial Surface Area, is the lateral surface area of a pyramid. In this case, it is the sum of five triangles with base of 12cm and height that can be calculated as follow:

height^2 = 8.26^2 + 20^2 = 468.23

height = 21.64cm

LA = 5*1/2*12*21.64

= 649.2cm^2

SA, Surface Area, is the sum of LA and base area.

Base area = 5*1/2*12*8.26 = 247.8cm^2

SA = 649.2 + 247.8 =897cm^2

Volume, V = 1/3 * base area * height

= 1/3 * 247.8 * 20

= 1652cm^3

4 0
3 years ago
Read 2 more answers
The expression 10a+6c gives the cost (in dollars) for a adults and c children to eat at a buffet restaurant. A. The cost for 1 a
Liono4ka [1.6K]

Answer: The total cost is \$62 assuming the cost for 1 adult is \$5 and the cost for 1 child is \$2

Step-by-step explanation:

Assuming the cost for 1 adult is \$5 and the cost for 1 child is \$2:

a=\$5 and c=\$2

Then the expression that gives the total cost 10 a+6c is solved as:

10(\$5)+6(\$2)=\$62

4 0
3 years ago
Other questions:
  • Please help me and please show your work<br> (1thanks reward)
    13·1 answer
  • 3.44 as a mixed number
    14·1 answer
  • kayla has a tshirt store. She sold three times as many white tshirts as blue tshirts. she sold a total of 48 tshirts. How many w
    6·1 answer
  • 15 points + brainly
    10·2 answers
  • A quadrilateral with two pairs of consecutive sides congruent and no opposite sides congruent is called a(n)
    8·1 answer
  • Which of the following describes a similarity between the British colonies in
    15·1 answer
  • Six is subtracted from a number the result is divided by four this result is added to 10 to give 30 what is the number
    6·2 answers
  • during the fall a pumpkin patch advertises four pumpkin for $11.oo which equation below respresents this proportional relationsh
    7·1 answer
  • Please Help! Will Give Brainlest!
    10·1 answer
  • Dan drops his fishing lure 3 feet below the surface, raises it 1 1/2 feet, and then drops it 2 1/4 feet
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!