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nikklg [1K]
1 year ago
12

Sally invested $1,200 in an account where interest compounded quarterly. After two years, she had $1,351.79 in her account. What

was her interest rate?
Mathematics
1 answer:
Licemer1 [7]1 year ago
5 0

use the formula

A=P(1+\frac{r}{t})^{n\cdot t}

clear the formula for the rate

A=P(1+\frac{r}{t})^{n\cdot t}

.

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Which of the following equations could be the result of using the comparison method to solve the system shown?
masya89 [10]

Answer:

6-2y=4y+8

since you show x through y

Answer:

The result that is obtained on comparing the system of equations in order to get the solution to the system of equations is:

   6 -2y =4y + 8

Step-by-step explanation:

We are given a system of equations in term of variable x and y as follows:

                                x + 2y = 6 --------(1)

                           x - 4y = 8-------------(2)

From equation (1) we have the value of x in terms of y as:

                          x=6-2y

From equation (2) we have the value of x in terms of y as:

                         x=8+2y

Hence, on equation the above two values of 'x' we obtain:

                         6 - 2y = 4y + 8

ghope this helps

5 0
3 years ago
Read 2 more answers
Find the missing angle measure
TiliK225 [7]

Answer:

1) 122°

2) 151°

Step-by-step explanation:

1)

As these two angles are supplementary (They add together to equal 180°) we can setup the equation and solve for x.

58+x=180\\\\x=180-58\\\\x=122

2)

Again, these two angles are supplementary we can setup the equation and solve for x

29+x=180\\\\x=180-29\\\\x=151

7 0
4 years ago
2.5d + 7.25 = 1 + 3.75d solve for d
dimulka [17.4K]

Answer:

5

Step-by-step explanation:

Subtract 1 from both sides. The equation becomes 2.5d + 6.25 = 3.75d

Subtract 2.5d from both sides. The equation becomes 6.25 = 1.25d

Divide 1.25 from both sides. You get 5 = d

4 0
3 years ago
Three boys, Adam, Kyle, and Ty, and two girls, Anne and Kate, have volunteered to help plan the school dance. One student will b
Karo-lina-s [1.5K]

Answer:

2:4

Step-by-step explanation: Subtract 1 from total amount then find the number of girls I think sorry

3 0
2 years ago
Find the surface area of each figure. Round to the nearest hundredth when necessary Please quick and real answers
Vlad1618 [11]

The total surface area of the cone is 542.592 square mm

<h3>Total surface area of a cone</h3>

The formula for calculating the total surface area of a cone is expressed as:

TSA = πr(r + l)

where

r is the radius of the cone

l is the slant of the cone

Given the following parameter

l = 13.6mm

r = 8mm

Substitute

TSA = π(8)(8+13.6)
TSA = 3.14(8)(21.6)

TSA = 542.592 square mm

Hence the total surface area of the cone is 542.592 square mm

Learn more on surface area here: brainly.com/question/76387

#SPJ1

8 0
3 years ago
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