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ipn [44]
3 years ago
15

If Steve paid back $7,945 on a $7000 simple interest loan after 3 years. What was the interest rate?

Mathematics
1 answer:
seraphim [82]3 years ago
8 0

Answer:

already answered

Step-by-step explanation:

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Write the equation of the line that is perpendicular to y = 2x - 4 that goes through
user100 [1]

Answer:

y = 2x + 13

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Donna earns twice as much money per month as omar does. Omar earns $209 more than alex. Together, the three workers earn 3320 pe
Blizzard [7]
Omar makes $882.25 a month

Donna = 2x
Omar = x
Alex = x - 209

4x - 209 = 3320
4x = 3529 
x = $882.25
3 0
3 years ago
Select the correct answer.
Goryan [66]

Answer: g(x)=9^x-7

Step-by-step explanation:

7 0
3 years ago
Researchers at the Centers for Disease Control and Prevention have been studying the decay pattern of a new virus with a decay r
koban [17]

The Researcher will find 69 viruses, because 231 viruses are decayed in 7 hours, if a virus with a decay rate of 19% per hour and they start with 300 viruses.

Step-by-step explanation:

The given is,

                     A new virus with a decay rate of 19% per hour  

                    They start with 300 viruses

Step:1

                  Formula to calculate the viruses at decay rate,

                                                  y = A(1-r)^{t}............................(1)

                 Where, y - No of viruses after given time

                             A - Viruses at initial stage

                              r - Decay rate

                              t - No. of hours

                 From the given,

                              A = 300

                               r = 19% per hour

                               t = 7 hours

                Equation (1) becomes,

                                            y = 300(1-0.19)^{7}

                                               = 300(0.81)^{7}

                                               = 300(0.228767)

                                               = 68.63

               Viruses of 7 hours ≅ 69 viruses

                                                     ( or )

Step:1

        For 1st hour,

          = (No.of viruses in hour) - (No,of viruses in last hour × Decay rate )

              = (300)-(300 × 0.19)

              = 300 - 57

              = 243

       For 2nd hour,

              = (243)-(243 × 0.19)

              = 243 - 46.17

              = 196.83

      For 3rd hour,

              = (196.83)-(196.83 × 0.19)

              = 196.83 - 37.39

              = 159.4323

       For 4th hour,

              = (159.4323)-(159.4323 × 0.19)

              = 159.4323 - 30.2921

              = 129.1402

      For 5th hour,

              = (129.1402)-(129.1402 × 0.19)

              = 129.1402 - 24.5366

              = 104.6035

     For 6th hour,

              = ( 104.6035)-( 104.6035 × 0.19)

              =  104.6035 - 19.8747

              = 84.7288

     For 7th hour,

              = (84.7288)-(84.7288 × 0.19)

              =  84.7288 - 16.0984

              = 68.63 viruses

Result:

          The Researcher will find 69 viruses, because 231 viruses are decayed in 7 hours, if a virus with a decay rate of 19% per hour and they start with 300 viruses.

7 0
3 years ago
Find the area of the square ABCD
icang [17]

Step-by-step explanation:

Area of Square ABCD = 10m * 10m = 100m².

7 0
3 years ago
Read 2 more answers
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