Mathematics College

Bradley needs at least $280 for a new laptop. He has already saved $40. He earns $8 an hour at his job.
Write and solve an inequality to find how many hours he will need to work to buy the system. Interpret
the solution.

Answers

Answer 1
280 -40 =240
X($8.00)= $240.00
Answer 2

Answer:

so sorry if i am late

Step-by-step explanation:

Bradley Needs At Least $280 For A New Laptop. He Has Already Saved $40. He Earns $8 An Hour At His Job.Write

Related Questions

Use the distributive property to simplify the expression 7 (8x+3).

7(8X+3=​

Answers

Answer:

56x+21

Step-by-step explanation:

7times 8x is 56x

7 times 3 is 21

add them together and you get 56x+21

Which represents the polynomial written in standard form

Answers

Answer:

The answer is the third option

Step-by-step explanation:

i can’t help you but i just need you to ❤️ my answer so i can get my question answered

Find an ordered pair (x,y) that is a solution to the equation.
5x+y=6

Answers

Answer:

(0,6) and (1.2 , 0)

Step-by-step explanation:

5x + y = 6

if we take x=0

5(0) + y = 6

y = 6            ; so, one of the solution is (0,6)

if we take y=0

5x + (0) = 6

5x = 6

x = 6/5 = 1.2     ; so, the other solution is (1.2 , 0)

But basically, you can find other solutions of the equation if you do this:

5x + y = 6

5x = (6 - y)

x = (6 - y) / 5    ; so if you use whatever number of y, you will find the rigth solution for x.

and you can do the opposite too:

5x + y = 6

y = 6 -5x       ; with this, you can use whatever number of x, and find the right y.

I hope this helps you!!!

plz help will give crown

Answers

Answer:

x=8

Step-by-step explanation:

-2(8) would be -16 so -18 is still greater

Answer:

B

Step-by-step explanation:

all the others will have a value of more than -18. Only B makes sense.

Hope this helps! Have a great day

4
Select the correct answer
Erin is taking part in a play at the community theater. The cast and crew ordered T-shirts for all the volunteers. The cost of a T-shirt is $8, and the
total delivery charge is $45 per order. If the center has no more than $325 to buy T-shirts, how many T-shirts can they buy?

Answers

Answer:

The answer is B

Step-by-step explanation:

Which of the following rules best describes the matrix below
a. dilation of scale factor 2
b. reflection over the y-axis
c. reflection over the line y = x
d. translation 1 unit left and 1 unit up

Answers

Answer: D

Step-by-step explanation:

d. translation 1 unit left & 1 unit up

right on edg

-0.5
0
1
-2
1.5
Where is Point D on the number line?
?

Answers

Answer:

Its -1.9 for where point D is

-1.9 is where Point D is

10. What is the measure of ZP?*
E
(15m + 17)º
-Q
(4m – 10)
P
(7m - 9)

Answers

Answer:

m∡P = 40°

Step-by-step explanation:

15m + 17 + 4m - 10 + 7m - 9 = 180

26m - 2 = 180

26m = 182

m = 7

∡P = 7(7) - 9 = 49 - 9 = 40

The length of a rectangle is 3 yards less than 5 times the width. If the perimeter is 102 yards, find the length and the width of the rectangle.

Answers

Answer:

Width = 9 yards, length = 42 yards

Step-by-step explanation:

Perimeter = 2xlength + 2xwidth. Let's call length L and width W. The question also states that L = 5W-3. Therefore, 102 = 2x (5W-3) + 2W. Then, 102 = 12W - 6. 108 = 12W, so W = 9 yards. Since L = 5W - 3, we get 45-3 = 42 yards.

W = 9 yards L= 42 yards

At the beginning of the week, the temperature was 15. During the week, it decreased by 20. What was the temperature by the end of the week? What is the percent Change of the weekly temperature? Show work​

Answers

Answer:

Initial temperature = 15Decrease during the week = 20

Temperature by the end of the week:

15 - 20 = -5

Change is 20

Percent change is:

20/15*100% = 133.33%

When you buy something with a credit card, which one of the following will usually save you money over the long run? A. Paying the entire amount owed each month B. Paying a small portion of the amount owed over a longer period of time C. Paying a small portion of the amount owed each month D. Paying the entire amount owed, but only every other month​

Answers

Answer:

A. Paying the entire amount owed each month

Step-by-step explanation:

When we buy something with a credit card option C usually save you money over the long run.

What is credit card?

A credit card represents a payment mechanism which facilitates both consumer and commercial business transactions, including purchases and cash advances. A credit card generally operates as a substitute for cash or a check and most often provides an unsecured revolving line of credit.

A.  Paying the entire amount owed each month

 This option is better when you don't have money and you have to manage it.

B. Paying a small portion of the amount owed over a longer period of time.

this option is not applicable

C. Paying a small portion of the amount owed each month.

This option gives more money savings if there is no interest.

D.  Paying the entire amount owed, but only every other month​.

This is also a money saving if there is no interest.

Thus when we buy something with a credit card option C usually save you money over the long run.

To know more about credit card click here

https://brainly.com/question/3685635

#SPJ2

65+ ? -15=65 Find missing number

Answers

Answer:

65 + 15 - 15 =65

Step-by-step explanation:

pls give brainlist if this was helpful ^^

A car can travel at least 70 miles per hour faster than 4 times the speed of someone walking. Which inequality represents the relationship between the speed of the person walking, m, and the speed of the car, v?

A. v ≥ 560m
B. v ≥ 4 + 70m
C. v ≥ 4m - 70
D. v ≥ 4m + 70

Answers

Answer:

D

Step-by-step explanation:

plz tell me if correct!

and PLZ GIVE BRAINLIEST

Robin can clean 727272 rooms in 666 days.
How many rooms can Robin clean in 999 days?
rooms

Answers

Answer:

1090908 rooms

Step-by-step explanation:

calculator

Answer:

Robin can clean 9828 rooms in 9 days

Step-by-step explanation:

Since Robin can clean 727272 rooms in 666 days, we can find how many rooms she can clean in 1 day by dividing 727272 by 666

number of rooms cleaned by Robin in 1 day = 727272 rooms/666 days = 1092 rooms/day

We can then find how many rooms she can clean in 9 days by multiplying 1092 by 9

1092 rooms/day * 9 days = 9829 rooms

HURRY PLS 7TH GRADE MATH I NEED HELP I HAVE LESS THAN 5 MINS TO DO THIS

Answers

Answer:

35 = 8 + x + x + x + x + x +x

35 = 8 + 6x

6x + 8 = 35

35 - 8 = 6x

Step-by-step explanation:

hope this helps:)

A sequence can be generated by using an=12an−1, where n is a whole number greater than or equal to 1.

Given a9=12, what is a10?

5
6
13
24

Answers

Answer:

8, 11, 14, 17

Step-by-step explanation:

For example,

Given: an=2an−1−xan=2an−1−x

a5=99a5=99

a3=27a3=27

a5=2a4−x=2(2a3−x)−x=4a3−3x=99a5=2a4−x=2(2a3−x)−x=4a3−3x=99

4(27)−3x=994(27)−3x=993x=108−99=93x=108−99=9

x=3x=3

21.79 + x = 25


make sure to do a explanation

Answers

Answer:

x= 3.21

Step-by-step explanation:

25- 21.79= 3.21

the equation equals to 25 so you need to find what x is by subtracting the other value

Hope this helps

The product of 3m and 5r is 15mr True or False Explain...

Answers

Step-by-step explanation:

let's see....

3m × 5r = 15mr

15(m × r)

15mr.

if it helps don't forget to like and mark me down

Using the following data set calculate the mean 9,14,14,9,20,6,8,19,17,13,9

Answers

12.545 is the answer

Answer:

12.54

Step-by-step explanation:

When finding the mean, first you add all the numbers in the data:

9+14+14+9+20+6+8+19+17+13+9=138

And then you divide it by the following numbers in the set. In this data set, since there are 11 numbers, you would divide 138 by 11.

138\11=12.5454545

So the answer would be 12.54 if your rounding to the nearest hundred. If your rounding it by a whole number, it would be 13.

A bike store sells scooters at a 54% markup. If the store bought each scooter for $29.25, what is the resale price to the nearest dollar? Show your work

Answers

9514 1404 393

Answer:

  $45

Step-by-step explanation:

The relation is ...

  resale price = cost + markup

  = cost + 0.54×cost

  = 1.54×cost

Then the resale price is ...

  resale price = 1.54×29.25 = 45.045 ≈ 45.00

The resale price is $45.00.

Plastic parts manufactured using an injection molding process may exhibit one or more defects, including sinks, scratches, black spots, and son on. Let x represent the number of defects on a single part, and suppose the distribution of x is as follows: x: 0 1 2 3 4 p(x): 0.79 0.09 0.05 0.04 0.03 What is the expected value, E(X), for the number of defects on a randomly selected plastic part

Answers

Answer:

The expected value for the number of defects on a randomly selected plastic part is 0.43.

Step-by-step explanation:

We have the following probability distribution:

P(X = 0) = 0.79

P(X = 1) = 0.09

P(X = 2) = 0.05

P(X = 3) = 0.04

P(X = 4) = 0.03

What is the expected value, E(X), for the number of defects on a randomly selected plastic part?

Each value multiplied by its probability. So

[tex]E(X) = 0.79*0 + 0.09*1 + 0.05*2 + 0.04*3 + 0.03*4 = 0.43[/tex]

The expected value for the number of defects on a randomly selected plastic part is 0.43.

the real zeros of √(x-1)+x+1​

Answers

X=0 I’m not sure though but I’m pretty sure

What is the distance between the points (4, 9) and (4, 2)? A) 2 B) 5 C) 7 D) 8

Answers

The distance between the points are B)5

Answer:

The answer is 7

Step-by-step explanation:

I took the test and failed it cuz I put 5. Don't listen to that other dude. So I know what I'm talking about. Just listen to me and you won't fail.

If a product of three numbers is 3150, two of the numbers are 14,15. Find the third number

Answers

Answer:

15

proof on pic......................

The temperature outside is 10°F. By evening, the temperature has dropped by 15°F. What is the new temperature?

Answers

The answer for this question is -5°F.


Which value of x will make these ratios equivalent

24/42=4/x

A.19
B.15
C.7
D.5

Answers

It’s a srry if it’s not gone out here but it’s coo

HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

78

Step-by-step explanation:

Arc GHJ is 81*2= 162 (the arc measure of an inscribed angle that does not cross the center of the circle is 2 times the measure of the angle

since arc GH is 84 and we need HJ, subtract 84 from 162=78

In a study of the relationship between pet ownership and physical activity in older adults, 586 subjects reported that they owned a pet, while 1931 reported that they did not. Give a 98% confidence interval for the proportion of older adults in this population who are pet owners. Lower limit Incorrect: Your answer is incorrect. Upper limit

Answers

Answer:

Step-by-step explanation:

In a study of the relationship between pet ownership and physical activity in older adults, 586 subjects reported that they owned a pet, while 1931 reported that they did not. Give a 98% confidence interval for the proportion of older adults in this population who are pet owners. Lower limit Incorrect: Your answer is incorrect. Upper limit

p ± z × (1 - p/n)

z = 98%

p = 586/1931

= 0.3034697048

n = 1931

Approximately = 0.3035

Confidence interval =

0.3035 + 2.326 × ( 1 - 0.3035/ 1931)

thomas has 12 more marbles than twice the number of marbles Andrew has.
Andrew has x marbles. which expression represents how many marbles thomas has?
A. x + 2 + 12
B.x+12(2)
C.2x+12
D.2(x+12)​

Answers

Answer:

A.

x + 2 + 12

Step-by-step explanation:

Thomas (t) = Andrew (x) * 2 + 12

if virginia's sales tax rate is 4.3%, what is the total cost of a $34 virgina tech t-shirt?

Answers

It would be 4.2% -‘jzjsjehwjdjdjekslsjsbsnsjzjzjsjsnzsjsjnsnsns SNSJSJ

Answer:

35.46

Step-by-step explanation:

34 x 1.043=35.46

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A writer for a magazine recently did a test to determine which mid-range digital camera takes the best pictures. Her method is described below. Which part of the method describes an area of potential bias? She gathered 20 of the best-selling cameras and used the same photographer to take 100 pictures with each camera. She ensured that the environment and the subject of each picture were consistent across all cameras and used a 10-point scale to determine picture quality. Of the cameras tested, two were from companies who are major advertisers in the magazine. If x =7/8 cm, y =1/4 cm, and z = 5/8 cm, what is the volume of the rectangular prism above? helppppppppppppppppppp An altitude is also called the __ of the triangle. One endpoint must be a _____ of the triangle. The altitude creates a ______ ______ with the opposite side of the triangle. FILL IN THE BLANKS Wrapping up a little bit of trouble and In a kindergarden class of 19 students, 100 addition problems can be completed in a mean time of 6 minutes. Thestandard deviation is 1 minute.How many students will finish before 5 minutes? Match these items.1. send out 2. controls heredity 3. groups of tissues working together 4. take in 5. substance that builds tissues proteinabsorption excretionDNA organ Which is not a reason for biodiversity in an ecosystem. A. Organisms can adjust to environmental changes B. The ecosystem provides a variety of food for organisms C. Water scarcity Brainliest and 15 points if you get this problem right! NO LINKS= No BRAINLIEST Referring to the figure, find the value of x Question 2 (1 point)Thyroid hormones and steroid hormones have receptors that enter the cell to reachthe hormone, rather than the hormone using exocytosis to exit the cell and reach thereceptor TrueFalse help please i really need this done At 4.5 miles per hour, how long will ittake him to walk 18 miles? there are 12 eggs of the same weight on the scale. the total weght is 620g determine the total weight if the number of eggs is increased to 20 5. Patients suffering from dementia are affected with multiple cognitive effects, such as getting lostin their neighborhood because they can't remember their way back or forgetting the use ofcertain words and they are unable to communicate.(4 Points)TrueFalse Please also include an explanation, I'd appreciate it :-) The critical elements of internal control systems for cash disbursements include each of the following except: Multiple Choice The same person that prepares the check should also record it in the proper journal. All of these answer choices are critical elements of internal control systems for cash disbursements. All disbursements, other than very small disbursements, should be made by check. Only authorized personnel should sign checks. All expenditures should be authorized before a check is prepared. Which of the following is not an example of weathering? help me please i'll make you brainiest Why is defining the parameters of the project the first step?