You are installing solar lighting units alongs the driveway to your house. Each unit is on sale for $12. You purchase 15 units. show how you can use the distributive property to find the total cost of the lighting units mentally.

Answers

Answer 1

Answer:

$180

Step-by-step explanation:

(12*10)+(12*5)

12*5 = 120/2 = 60 (half of 12*10)

12*10= 120

120 + 60= $180

You don't even have to calculate (12*5) you can just do 12*10/2


Related Questions

please help me (i don’t know how to do it)

Answers

Answer:

The answer is in the attached picture below.

1, 3/2 , 9/4 ... Find the 9th term

Answers

Answer:

6561/256

Step-by-step explanation:

You can notice that each term is equal to the previous term multiplied by 3/2. This means that it is a geometric series. The formula to find the nth term is as follows:

[tex]a_{n}= a_{1} *(r)^{n-1}[/tex]

The first term, a1, is 1 and r, the common ratio is 3/2 because that is what you are multiplying by. We can also substitute in n as 9 because we are looking for the ninth term:

[tex]a_{9} = 1 *(\frac{3}{2} )^{9-1}\\\\a_{9} = (\frac{3}{2})^{8}\\\\a_{9} =\frac{3^8}{2^8} \\\\a_{9} =\frac{6561}{256}[/tex]

CH4+2O2->CO2+2H2O If you change the 2 in front of 2O2 to a 3 what will be the change in the results on the right side of the equation

Answers

Answer:  There is an extra O2 molecule left over.

Step-by-step explanation: A reaction between four oxygen molecules and two methane molecules will not have any leftovers.

There is an extra O2 molecule left over.

What is reaction?

In a chemical reaction, one or more substances—also known as reactants—are changed into one or more additional substances—also known as products. Chemical elements or chemical compounds make up substances.

Reactants are the chemicals that take part in a chemical reaction. The resulting materials are referred to as products. The reactants' characteristics are different from those of the products. Additional Names: chemical change, reaction

Given:

C[tex]H_4[/tex]+2[tex]O_2[/tex] -> C [tex]O_2[/tex] + 2[tex]H_2[/tex]O

So, if we  change the 2 in front of 2O2 to a 3 then we have 4 oxygens to react.

Then, There won't be any byproducts of a reaction between two methane molecules and four oxygen molecules.

Learn more about reaction here:

https://brainly.com/question/22961017

#SPJ2

Find the area of a rectangle with a length of 7 centimeters and a width of 24 centimeters.

Answers

Answer:

168 cm^2

Step-by-step explanation:

Given,

Length ( l ) = 7 cm

Width / breadth ( b ) = 24 cm

To find : -

Area of rectangle = ?

Formula : -

Area of rectangle = l x b

Area of rectangle

= 7 x 24

= 168 cm^2

Nancy Wrote two equivalent expressions. If she sets them equal to each other, will them equation have one solution, no solutions, or infinitely many solutions? Use an example to support your answer.

Answers

The answer is infinetely many solutions.

6+6=6+6

12=12

Please help me on this I don’t understand it

3i+(3/4+2i)-(3+3i)

Answers

Answer:

A

Step-by-step explanation:

By my mean

Question is attached.
Step by step explanation needed!​

Answers

Refer to the attachment

6. Find the value of b and the measurement of
each angle
(7b-2)
(3b+2)°

Answers

Answer:

b = 10

Step-by-step explanation:

"7b - 2" is supplementary to "3b + 2"

7b - 2 + 3b + 2 = 180

7b + 3b - 2 + 2 = 180

10b + 0 = 180

10b/10 - 180/10

b = 18

Evaluate e - 1/2f when e = 15 and f = 2

Answers

Answer:

14 is correct answer

Step-by-step explanation:

15-1/2*2

15-1/4

15*4/4-1/4

60-1/4

59/4

= 14.75

(Hope this helps can I pls have brainlist (crown)☺️)

Answer:

Step-by-step explanation:

e-1/2f

15-1/2*2

15-1

14

I will give you 80 points If you help me please help me
Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from ground to a final position of –25 feet. Which statement best describes the final positions of these two elevators? (1 point)

Elevator 1 is 16 feet below ground level, and elevator 2 is 25 feet above ground level.
Elevator 1 is 16 feet below ground level, and Elevator 2 is 25 feet above the position of Elevator 1.
Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level.
Elevator 1 is 16 feet above ground level, and Elevator 2 is 25 feet below the position of Elevator 1.

Answers

Answer:

Elevator 1 is 16 feet above ground level, and elevator 2 is 25 feet below ground level

Step-by-step explanation:

Elevator one is moving up, so it means it's above ground level since it started on the ground

Elevator is moving negative floors, so it is moving below.

Let me know if you have any questions!

Each of ten tickets is marked with a different number from 1 to 10 and put in
a box. If you draw a ticket from the box, what is the probability that you will
draw 5, 6, or 4?

Answers

Answer:

10 Percent

Step-by-step explanation:

Common sense 10 tickets, 1,2 ,3.. to 10 will all be 10 percent but if you want 5 6 and 4 then that will be 10% times 3 which is 30% chance of 5 6 or 4.

Answer:

3/10

Step-by-step explanation:

The probability of drawing a card out of the box is 1/10. So the probability of drawing 3 tickets out of the box is

[tex] \frac{1}{10} + \frac{1}{10} + \frac{1}{10} = \frac{3}{10} [/tex]

1. What is 20 1/2+ (- 34) − (7− 10 +12) simplified? Show work to support the answer.

Answers

Answer:

-45/2

Step-by-step explanation:

Step by step in the screenshots!!

What does it mean when they ask to express four thousand, fifty?

Answers

Answer:

Numbers

Step-by-step explanation:

Here you go:

24000+50

24,050.

Like bro

*sorry read it as 4050 ^_^*

Answer:

it means to put it in numerical form I believe so the answer would be 24,050

what is the √-1 please under complex numbers​

Answers

Imaginary number (i'm serious, that's what it's called i'm not trying to be funny)

Answer:

i is the answer

Step-by-step explanation:

When using complex numbers you take the square root of negative one as i

for example: If I have √-16 I need to take √-1 out first and then put i in for √-1. Therefore my answer would be i√16

i = imagiary number aka √-1

In your case the answer is i

I hope this helped you!!

I did this for Algebra 2 on FLVS and got a 100%

Which is an ordered pair on the line

Answers

Answer:

The answer is B

Step-by-step explanation:

The answer to this question is B

Please help me quickly due at 9:00 pm !!!!

Answers

900 students per teacher
99 students per tutor
3 tutors for 99 students

Pls help I will give brainliest to first correct answer!!!!


Megan purchased a new gadget for her technology hobby. She plans to sell it sometime in the future; however, its value depreciates monthly. The expression shows the depreciated sales value of the gadget:

2,020 − 22m

What does the coefficient of the expression represent?

The number of months Megan will wait to sell the gadget
The monthly depreciation value of the gadget
The amount of money Megan will get when she sells the gadget
The original value of the gadget

Answers

Answer:

(B) The monthly depreciation value of the gadget

Step-by-step explanation:

The expression given:

2020 - 22m

2020 is the initial value of the gadget.

The coefficient 22 represents the rate of monthly depreciation, and the m is the number of months.

The entire expression is the depreciated value after m months.

Correct answer choice is B

The equation y = 0.7x represents the distance Henry hikes in miles over time in hours. The graph represents the rate that Clark hikes. Determine which hiker is faster. Complete the explanation.

Answers

Answer:

Henry’s unit rate is 0.7 miles per hour. Clark’s unit rate is 1.5 miles per hour . So, Ckark is faster.

Step-by-step explanation:

Distance covered by Henry is represented by y = 0.7x, where x = time (hrs), and y = distance (miles).

Distance covered in 1 hour by Henry would be:

y = 0.7(1) = 0.7 miles per hour

Distance covered by Clark in 1 hour = 1.5 miles per hour

Ckark covers more miles per hour than Henry covers in one hour, therefore, Ckark is faster.

Hope this helped!

Have a wonderful day!

Pls help I’ll brainlest ASAP

Answers

Answer:

I called her two times, but she did not call back

Step-by-step explanation:

main clause, then subordinate clause(:

Answer:

I called her two times, but she did not call back.

If USA’s fastest man Yohan Blake completed 100 meters in 10 seconds , find average speed in meters per seconds

Answers

100/10 = 10m/s

Hope this helps

Answer:

10 m/s

Step-by-step explanation:

He does 100 meters in 10 seconds.

Divide both numbers by 10.

He does 10 meters in 1 second.

Can someone explain how you do this and not only give me the answer?

Answers

you subtract them
8850 - 154

PLZ PLZ HELP ME ILL MARK BRAINLIEST AND GET A FOLLOW BUT PLZ HELP ME ​

Answers

Answer:

See below

Step-by-step explanation:

Initial coordinates and transformations:

(x, y) → (4x, 4y) → (3x, 3y)A(-1, -1) → A'(-4, -4) → A''(-3, -3)B(1, 1) → B'(4, 4) → B''(3, 3)C(2, 0) → C'(8, 0) → C''(6, 0)

Can anyone please help me ima give brainlest who answer right

Answers

Answer:

Step-by-step explanation:

3) Mr. Bee

Homework papers : Exit tickets = 20 : 8

                                                    = 5 : 2

Mr. Carter

Homework papers : Exit tickets = 50 : 32

                                                     = 25 : 16

No, they are not equivalent ratios.

4) Cost of six pack of drinks =  $ 2.99

Unit rate = 2.99 ÷ 6

              = $ 0.50

No, her sister was wrong and the unit rate is $ 0.50

5) Cost of 3 lb = $ 1.89

Unit rate = 1.89 ÷ 3 = $ 0.63

Cost of  5 lb = $ 2.49

Cost of 1 lb = 2.49 ÷ 5  = $0.50

0.63 > 0.50

Best buy : 5 lb apples for $2.49

6) 6 bagels for $ 4.20

Unit rate = 4.20 ÷ 6  =$ 0.70

12 bagels  = $ 7.80

Unit rate = 7.80 ÷ 12 = $0.65

0.70 > 0.65

Best buy: 12 bagels for $ 7.80

Alice is deciding where to go on her next trip. She is reviewing some information packets. She has packets advertising European trips numbered 1,2,3, packets advertising African trips numbered 1,2,3,4,5,6, and packets advertising South American trips numbered 1,2. If a single packet is picked at random, what is the probability that the packet is advertising a South American trip AND has an odd number?

Provide the final answer as a fraction.

Answers

Answer:

1/11

There are a total of 3+6+2=11 packets. Of these, there is 1 card that is advertising a South American trip and has an odd number, so the answer is 1/11.

Step-by-step explanation:

Answer:

1/11

Step-by-step explanation:

The length of a rectangle is three times the width. A new
rectangle is created by decreasing the length of the original rectangle by 9 feet
and increasing its width by 4 feet. The area of the new rectangle is the same as
the area of the original rectangle. What is the perimeter of the new rectangle?

Answers

Answer:the perimeter is 36

Step-by-step explanation:because 9 multiplied by 4 is that

what is the answer to this ?A cheetah ran 75 meters at a speed of 25 meters per second. How long was the cheetah running?

Answers

Answer:

3 answers

Step-by-step explanation:

75/25=3

James has 30 dollars to spend on pens and pencils for the beginning of middle school. He spends 12 dollars on pens and packs of pencils are 2 dollars each.

What is the greatest number of pencils James can buy?

Answers

15 Pencils is gonna be the wander

Answer:

The answer would be 15!!  <3

I need help with this problem please.

Answers

Here u go the answer is 35 b

Write an equation for the situation. Do not solve it
Joe ate 2 hamburgers and then he divided the remaining burgers amongst his 5 friends. Every friend received 2 burgers. How many burgers did Joey start with?

Answers

Answer:

x -2/5 = 2

Step-by-step explanation:

x = hamburgers total

Joey ate 2 = -2

Divided by 5 friends = /5

Answer:

x = 2 + (5 x 2)

Step-by-step explanation:

Let x represent the total number of burgers

given f(x)=21x+11 , find f(3)

Answers

Answer:

f(3) =74

Step-by-step explanation:

21(3)+63

63+11

=74

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