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
lakkis [162]
2 years ago
13

Officer Brimberry wrote 32 tickets for traffic violations last week, but only 20 tickets this week. What is the percent decrease

? Give your answer to the nearest tenth of a percent.
The percent decrease is
%.

PLEASE HELP!!!!!!!!!!!!
Mathematics
2 answers:
Lerok [7]2 years ago
6 0
0.375 i think is the answer
Papessa [141]2 years ago
6 0

Answer with explanation:

Number of tickets wrote by Officer Brimberry last week = 32

Number of tickets wrote by Officer Brimberry this week = 20

Percent Decrease

     =\frac{\text{Last week}-\text{This week}}{\text{Last week}}\times 100\\\\=\frac{32-20}{32}\times 100\\\\=\frac{12}{32}\times 100\\\\=\frac{1200}{32}\\\\= 37.5

So, Percent decrease in ticket from last week to this week =37.5%  

You might be interested in
A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49 randomly chosen locations al
NeX [460]

Complete Question

The complete qustion is shown on the first uploaded image

Answer:

The correct option is B

Step-by-step explanation:

From the question we are told that

      The sample size  is  n = 49

       The mean is  \mu  =  17ppb

       The standard deviation is \sigma =  14 ppb

Generally the standard error of this measurement is mathematically represented as

       \sigma_z  =  \frac{\sigma}{\sqrt{n} }      

substituting values

      \sigma_{\= x}  =  \frac{14}{\sqrt{49} }  

     \sigma_{\= x}  =  2ppb

Now the probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb represented as P(X < 15 )

Next is to find the z value

    z =  \frac{\mu -\sigma }{\sigma_{\= x}}

     z =  \frac{15-17}{2}

      z =  -1

Now checking the z-table for the z-score of  -1 we have  

      P(X

                       

       

     

5 0
2 years ago
Raymond just got done jumping at Super Bounce Trampoline Center. The total cost of his session was \$43.25$43.25dollar sign, 43,
Elodia [21]

Answer:

29 minutes

Step-by-step explanation:

Given

Total = \$43.25

Entrance\ Fee = \$7

Per\ Minute = \$1.25

Required

Determine the number of minutes (t) that he was on the trampoline.

This can be expressed as:

Total\ Payment = Entrance\ Fee + Amount\ per\ minute * t

Where t represents the number of minutes

Substitute values for Total, Entrance Fee and Amount per minute

43.25 = 7 + 1.25 * t

43.25 = 7 + 1.25t

Solving further to get the value of t, we have:

1.25t = 43.25 - 7

1.25t = 36.25

t = 36.25/1.25

t = 29

3 0
2 years ago
Read 2 more answers
Find the Maclaurin polynomials of orders n = 0, 1, 2, 3, and 4, and then find the nth Maclaurin polynomials for the function in
Zielflug [23.3K]

Answer:

Σ(-1)^kx^k for k = 0 to n

Step-by-step explanation:

The nth Maclaurin polynomials for f to be

Pn(x) = f(0) + f'(0)x + f''(0)x²/2! + f"'(0)x³/3! +. ......

The given function is.

f(x) = 1/(1+x)

Differentiate four times with respect to x

f(x) = 1/(1+x)

f'(x) = -1/(1+x)²

f''(x) = 2/(1+x)³

f'''(x) = -6/(1+x)⁴

f''''(x) = 24/(1+x)^5

To calculate with a coefficient of 1

f(0) = 1

f'(0) = -1

f''(0) = 2

f'''(0) = -6

f''''(0) = 24

Findinf Pn(x) for n = 0 to 4.

Po(x) = 1

P1(x) = 1 - x

P2(x) = 1 - x + x²

P3(x) = 1 - x+ x² - x³

P4(x) = 1 - x+ x² - x³+ x⁴

Hence, the nth Maclaurin polynomials is

1 - x+ x² - x³+ x⁴ +.......+(-1)^nx^n

= Σ(-1)^kx^k for k = 0 to n

6 0
2 years ago
Twenty-nine percent of americans say they are confident that passenger trips to the moon will occur in their lifetime. You rando
CaHeK987 [17]

Answer:

the probability that less than 33% of the people sampled will answer yes to the question =0.5676

Step-by-step explanation:

8 0
2 years ago
The bird house in your friend's yard casts a shadow that is 14 feet long. Your friend is 5 feet tall and casts a shadow that is
astra-53 [7]
3.5/5=14/x   20ft tall
3 0
2 years ago
Other questions:
  • What is the completely factored form of the expression 16x2 + 8x + 32?
    17·1 answer
  • A workbox has the following interior dimensions:
    12·2 answers
  • gina is making a square tablecloth. what is the least number of inches of trim gina will need to go all the way around the edge
    13·1 answer
  • Lyn drew this bar model to solve a problem. What operation should she use to find the unknown number .
    13·1 answer
  • Simplify the equation -2(p + 4)2 - 3 + 5p. What is the simplified expression in standard form? ASAP PLEASE!! ILL GIVE EXTRA POIN
    15·2 answers
  • PLEASE HELP DUE TOMORROW. one math problem #29
    6·1 answer
  • Consider the table showing the given, predicted, and residual values for a data set.
    8·2 answers
  • Juan buys 2.8 pounds of turkey. The turkey costs $4.55 for each pound. How much does Juan spend for the turkey?
    11·2 answers
  • Emilce pide 5 platos por semana para almorzar en la oficina. El menú ofrece 5 opciones diferentes. De cuantas maneras puede real
    8·1 answer
  • Q#1:The volume of a cube is 46656 cubic metres.Find the length of each side?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!