answer.
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
SIZIF [17.4K]
2 years ago
13

PLZZZ HELP, i have limited time and i will give brainliest. Q1 Selena has placed $500 in an account that pays simple interest of

5 percent annually. Selena will have earned $ _.00 in interest by the end of the year. Q2 Suki has placed $800 in an account that pays 4 percent interest compounded quarterly. At the end of two years (eight quarters), the balance in the account will be $__ . That means Suki will have earned $ in interest during that time. (Round your answers to the nearest cent.) What will be the balance in the account at the end of two years (eight quarters)? How much interest will Suki have earned during that time? (Round your answers to the nearest cent.) Q3 Jessica is considering putting $50 into a money market account that pays a 4 percent annual interest rate. It will take year(s) for the money to double to $100. (Use the Rule of 72 to find the answer.) every ____ mark you put the answer in that place. plz label the answer with Q1 etc
Mathematics
1 answer:
Sergio039 [100]2 years ago
6 0

Hey next time use your calculator, if you can.

Since these problems are using this equation : A(mount) = P(rinciple) * ( 1 + R(ate) ^ {t(ime)} ) we can derive into this immediately.

Q1: 525 (Try it, don't copy, it's not nice ;) ).

Q2: 865.28

Q3: By using logs: 0.0566 years. (I'm not sure on that one...) Sry

You might be interested in
Which measure is the largest? 1.2 km, 120,600 cm, 1,220,000 mm, 120 meters
Margarita [4]
The first thing you should know to answer this question is the following conversions:
 1Km = 1000m
 1m = 1000mm
 1Km = 1000000mm
 1m = 100cm
 By making the conversions to the same unit, we can know what measure is greater:
 1.2Km = 1200m
 120600cm = 1206.00m
 1220000mm = 1220m
 120m = 120m
 Answer
 The biggest measure is
 1220000mm = 1220m
6 0
2 years ago
A web-based company has a goal of processing 90 percent of its orders on the same day they are received. If 434 out of the next
Kamila [148]

Answer:

We conclude that a web-based company are not exceeding their goal of 90%.

Step-by-step explanation:

We are given that a web-based company has a goal of processing 90 percent of its orders on the same day they are received.

434 out of the next 471 orders are processed on the same day.

Let p = <u><em>proportion of orders processing on the same day they are received.</em></u>

SO, Null Hypothesis, H_0 : p \leq 0.90     {means that they are not exceeding their goal of 90%}

Alternate Hypothesis, H_0 : p > 0.90      {means that they are exceeding their goal of 90%}

The test statistics that would be used here <u>One-sample z test for</u> <u>proportions</u>;

                            T.S. =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion of orders that are processed on the same day = \frac{434}{471} = 0.92

           n = sample of orders = 471

So, <u><em>the test statistics</em></u>  =  \frac{0.92-0.90}{\sqrt{\frac{0.92(1-0.92)}{471} } }

                                     =  1.599

The value of z test statistics is 1.599.

<u>Now, at 0.025 significance level the z table gives critical value of 1.96 for right-tailed test.</u>

Since our test statistic is less than the critical value of z as 1.599 < 1.96, so we have insufficient evidence to reject our null hypothesis as it will not fall in the rejection region due to which <u><em>we fail to reject our null hypothesis</em></u>.

Therefore, we conclude that a web-based company are not exceeding their goal of 90%.

8 0
1 year ago
A randomized study compared two different systems for tracking baggage at an airport. The treatment group using System A reporte
Natasha2012 [34]

Answer:

D. The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.

Step-by-step explanation:

The treatment group using System A reported a mean of 18.5 lost bags per day. The treatment group using System B reported a mean of 16.6 lost bags per day.

The best conclusion that can be made is - The difference of the means is not significant because the re-randomizations show that it is within the range of what could happen by chance.

As we know, in statistics, nothing happens by chance. So, this option is correct.

8 0
2 years ago
Read 2 more answers
Grace is 7 years older than Elena. Grace is also 15 years old.
Alex73 [517]
The 3rd one is the answer
4 0
2 years ago
Sven is trying to find the maximum amount of time he can spend practicing the five scales of piano music he is supposed to be wo
Katena32 [7]

Answer:

He should spend 3 minutes or less on each scale

Sven made a mistake in the symbol of inequality, placing lesser or equal instead of greater or equal

Step-by-step explanation:

Let

t ------> is the number of minutes he spends on each scale

Remember that the phrase "at least"  is equal to "greater than or equal"

so

The inequality that represent this scenario is

70-5t \geq 55

solve for t

-5t \geq 55-70

-5t \geq -15

Multiply by -1 both sides

5t \leq 15

Divide by 5 both sides

t \leq 3

Sven is incorrect

He should spend 3 minutes or less on each scale

Sven made a mistake in the symbol of inequality, placing lesser or equal instead of greater or equal

5 0
2 years ago
Other questions:
  • Marcia has two credit cards and would like to consolidate the two balances into one balance on the card with the lower interest
    15·2 answers
  • A craft store buys 50 yards of satin ribbon for 13.50. The store. The store sells the ribbon by the foot.A customer can purchase
    15·1 answer
  • Which transformation maps hexagon 1 into 3?
    15·1 answer
  • Suppose you have developed a scale that indicates the brightness of sunlight . Each category in the tablet is 5 time brighter th
    12·2 answers
  • A movie theater manager wants to determine whether popcorn sales have increased since the theater switched from using "butter-fl
    10·1 answer
  • A toy factory makes 5,000 teddy bears per day. The supervisor randomly selects 10 teddy bears from all 5,000 teddy bears and use
    9·1 answer
  • On a coordinate plane, two parabolas open up. The solid-line parabola, labeled f of x, goes through (negative 2, 4), has a verte
    12·2 answers
  • Mathew got 20 pencils, 3 rulers, 12 erasers,11 pens, 24 notebooks, 8 files, and 11 paper clips from a stationery shop for his br
    12·1 answer
  • The graph below represents the distance in miles (y), Jonathan travels on his bike in minutes (x). The table represents the dist
    6·1 answer
  • Anna lives 2.5 miles to the east of her school, and Ben lives 2 miles to the west of the same school.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!