Mathematics College

Help needed for this Que’s please.!

Answers

Answer 1

Step-by-step explanation:

step 1. the sale is 20% off; that means times 0.8.

step 2. the additional coupon is 10% off of the sale price; that means times 0.9.

step 3. so the final price is (0.8)(0.9) times the retail price

step 4. (0.8)(0.9) = 0.72 or a 28% discount and not 30%.

Related Questions

Solve the system of equations by the substitution method.
y = 4x-9
y-x=-3

A.(2, -1)
B.(-4,-7)
C.(-1,2)
D.(-7,-4)

Answers

Answer:

A. (2, -1)

Step-by-step explanation:

(4x - 9) - x = -3

3x - 9 = - 3

3x = 6

x = 2

y = 4(2) - 9

y = 8 -9

y = - 1

(2, -1)

Check

-1 - 2 = -3

A diner charges $0.80 per egg and $3.00 for three pancakes. Another diner charges $5.00 for three pancakes and $0.30 per
egg
If a customer orders three pancakes, the two diners charge the same amount for the order if the customer also orders
eggs.

Answers

Answer:

If the eggs cost $0.80 per egg, then that'll be 9 eggs and for eggs costing $0.30, it would be 4 eggs to make each place cost the same

Find the measure of angle ABD.

Answers

Answer:

ABD=23

Step-by-step explanation:

9x-22=6x-7

3x= 15

x=5 but wait thats only what X is so

9(5)-22

45-22

ABD=23

20 points i will mark brainiest

Question 4

(08.03)

Solve the system of equations and choose the correct answer from the list of options.

x − y = 7

y = 3x + 12

Question 4 options:

1)

2 over 19 comma 2 over 33

2)

negative 2 over 19 comma negative 33 over 2

3)

negative 19 over 2 comma negative 33 over 2

4)

19 over 2 comma 33 over 2

Answers

Answer:

x = -9 1/2

y = -16 1/2

Step-by-step explanation:

x - y = 7

solve the above for 'y': -y = 7 - x

multiple each side by -1: y = x - 7

now both equations are in 'y=' form

x - 7 = 3x + 12

-2x - 7 = 12

-2x = 19

x = -19/2 or -9 1/2

-9.5 - y = 7

-y = 16.5

y = -16.5 or -16 1/2

Answer:

(-19/2, -33/2)

Step-by-step explanation:

A contractor charges $35 for the installation of gutters, plus $1.50 per foot. If one installation cost $162.50, how many feet of gutter were required?

Answers

162.50-35.00=127.50
127.50/12=10.63
10.63 feet of guttering were required

Elliot has 4 1/3 candy bars. He gives 2/3 of a candy bar to Sara and 1/3 of a candy bar to Bill. How much does Elliot have left? (Work it out)

Answers

Answer:

10/3 or 3 1/3

Step-by-step explanation:

4 1/3= 13/3 as a mixed fraction

he gives 2/3 to sara:

13/3 - 2/2= 11/3

then he gives 1/3 to bill:

11/3-1/3= 10/3

he has 10/3 which is equal to 3 1/3

Consider the expression.
6 · 60 · 6–3
Which statements are true about the expression? Check all that apply.
The 6 without an exponent is equivalent to the 6 having a 0 exponent.
The sum of the exponents is 2.
Multiply the exponents to simplify the expression.
The expression has a value of StartFraction 1 Over 36 EndFraction.
An equivalent expression is 65 · 6-7.

Answers

Answer:

4. The expression has a value of 1/36 . True

5. An equivalent expression is (6)^5. (6)^- 7 True

Step-by-step explanation: Not true. The 6 without an exponent is equivalent to the 6 having a 0 exponent.

Any number having an exponent zero has a value equal to 1.

6 · (6)^0 · (6)^–3

= 6.1.1/216

= 1/36

= (6)^-2

2. The sum of exponents is 2.

False ( the sum of exponents is -2)

3.Multiply the exponents to solve the expression .

False when the bases are the same the exponents are added or subtracted.

4. The expression has a value of 1/36 .

True

5. An equivalent expression is (6)^5. (6)^- 7

True

the correct answers are D and E. I just got this right. hope it helps

Eighteen hats are packaged in 2 boxes. How many hats are packaged in 7 boxes? Justify your answer.

Answers

Answer:

Step-by-step explanation:

2 ways: 18/2 = 9 9 times 7 is 63

18 times 3 =54 plus 9 (because 18/2 is 9) is 63

Order the following numbers from least to greatest.
122 meters ABOVE sea level
1,629 meter ABOVE sea level
15.24 meters BELOW sea level
98 meters BELOW sea level

Answers

Answer: 98 meter below

15.24 meters below

122 meters above

1629 meters above

Step-by-step explanation:

Jogging at a pace of 150 seconds per quarter mile, how long would it take to run 3miles, in minutes?

Answers

Answer:

2400

Step-by-step explanation:

150 times 4 = 600 times 4 = 2400

Answer:

30 minutes

Step-by-step explanation:

150 sec. x 4 = 600 sec.

600 sec. per mile

600 sec. x 3 = 1800 sec.

1800 sec. / 60 sec. = 30 min.

I need help with this is this circumference or areas will mark you brainly if right

Answers

The question is cut off, but here are the formulas for area and circumference:

A = pi * r^2
C = 2 * pi * r

Which value is an input of the function?
-14
-2
0
4

Answers

Answer:

Only answer on the x-axis

Answer:

It's 4.

Step-by-step explanation:

Did the test on edge2021

What absolute value represents a number greater than |0.37|

A: |-0.38|

B: |-0.35|

C: |-0.37|

D: |-0.39|

No wrong answers!

Answers

it’s going to be A and D

HELPPSKEJSSJS THANKSSSS

Answers

Answer:

-7

Step-by-step explanation:

what is 13x25+3÷
15 please help im bad at math

Answers

Answer:

325.2

Step-by-step explanation:

Of the 950 students enrolled in a soccer league, 42% are in middle school. How many students in the soccer league are in middle school?

68

399

509

908

Answers

399 students

Hope this helps :)

Please answer 1 and 2 soon

Answers

Answer:

1.36+3+(32)(2)

=57

error is that 6 is the wrong answer

I need help I’m not sure if this the right answer.!

Answers

Answer:

is A

Step-by-step explanation:

00000000000000000000000000

Answer:

Its 0 because 12+ (-12) = 0

Select all the expressions that are equivalent to 2/3(9x+6)-1/2(8x-4)?
M. 2(x+1)
P. 2x+6
R. 2x+2
S. 2(x+3)
T. 8x

Answers

Answer:

S. 2(x+3)

Not sure if I should show my work or no

y = - 2x + 1
2x - 2y = 4
Solve systems of equations by substitutions

Answers

Answer:

x= 1

y= -1

Step-by-step explanation:

y=-2x+1

2x-2y=4

substitute for y

2x-2(-2x+1)=4

reduce

2x+4x-2=4

6x=6

x=1

y= -2(1)+1

y= -1

The volume of this cylinder is 1751 cubic units. What is the volume of a cone that has the same base area and the sam height

Answers

Answer:

[tex]V_2 = 583.67[/tex]

Step-by-step explanation:

Given

Represent the volume of the cylinder with V1 and the cone with V2.

So:

[tex]V_1 = 1751[/tex]

Required

Find V2

The volume of a cylinder is:

[tex]V_1 = \pi r^2h[/tex]

Because the cone and the cylinder have the same base area and height, the volume of the cone is:

[tex]V_2 = \frac{1}{3}\pi r^2h[/tex]

Substitute [tex]V_1[/tex] for [tex]\pi r^2h[/tex].

[tex]V_2 = \frac{1}{3}\pi r^2h[/tex]

[tex]V_2 = \frac{1}{3}V_1[/tex]

Substitute 1751 for V1

[tex]V_2 = \frac{1}{3} * 1751[/tex]

[tex]V_2 = \frac{1* 1751}{3}[/tex]

[tex]V_2 = \frac{1751}{3}[/tex]

[tex]V_2 = 583.67[/tex]

The volume of the cone is 583.67 cubic units

Give an example of a radical with two answers. Then solve your example. with give brainliest ong

Answers

I’m not sure what exactly your question is asking but here’s my answer:

Radical 4
This equals +2 or -2

I really hope this helped

Can somebody help me, I'm being timed!

Answers

Answer:

I think its -- linear postulate

Step-by-step explanation:

I will give someone 100 points if they give me a brainliest

Answers

Answer:

but why?

hmm

i dont get it , you will give someone 100 points for brainlist ? just answer someone’s question and ask for brainliest

What is 5^3 written as a product of the same factor?

Answers

Answer:

Step-by-step explanation:

5³ = 5×5×5

ASAP — PLS HELP OUT
WILL MARK BRAINLIEST AND GIVE A LOT OF POINTS

Answers

The correct answers are, length is 21 inches, and the width is 10 inches.

L=length; W=width.

L-2W=1
L=2W+1

P=2(L+W)
62in=2((2W+1)+W)
31in=3W+1
30in=3W
10in=W
The width is 10 inches.

L=2W+1=2(10in)+1=20in+1in=21in
The length is 21 inches.

Proof ;)
P=2(L+W)
62in=2(21in+10in)
62in=2(31in)
62in=62in

The volume of a cylinder with a radius of 3 inches and a height of 6 inches is 56.55 in? (Use V = Tt r2h.)
O True
O False
Please help

Answers

False

The volume of this cylinder is actually about 169.65

The answer is false

URGENT 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

B is the correct answer. Less than or equal to 35 t shirts orders.

$325 - $45 delivery charge for ALL orders, = $280.
$280 divided by $8 per order is 35 t shirts.

Answer:

B is the correct answer. Less than or equal to 35 t shirts orders.

Step-by-step explanation:

The experimental probability and theoretical probability of an event are not
necessarily the same.
A) true B) false

Answers

B I’m just putting random letters because I have to add characters apparentlyndnnd

the answer is false.

DON AND 3 FRIENDS SHARE 2 sandwiches at lunch which equation can be used to find out how much sandwich each person gets at the sandwich are shared equally
A. X= 4÷2
B. X= 2 ÷4
C. X= 1÷3
D. X= 1÷4

Answers

Answer: B. x = 2/4

Reason:

The thing they need to share are the sandwiches (y), where x is the amount of sandwich per person, so that goes in the equation first.

4/2 is 2 so that doesn’t make sense.

C isn’t an option because there are 4 people in this word problem. Don and his 3 friends = 4.

D isn’t right because there’re 2 sandwiches, not 1.

Other Questions

Which sentence from Wonder best reveals August's feelings through indirect characterization?The last surgery I had was eight months ago, and I probably won't have to have any more for another couple of years.What I wanted was to go to school, but only if I could be like every other kid going to school.Mom sat down in a chair in front of Mr. Tushman's desk, and even though there was another chair right next to hers, I decided to stand beside her.I'm not exaggerating when I say this, but my heart literally started beating like I'd just run the longest race in the world. What does the word "orient" mean?1. To change an idea or topic.2. To align or position yourself.3. The color of a pearl.4. The countries of Eastern Asia Show work Plss oooooooo Solve: y + x = 3 y = 1.5x + 1Solve: y = 1.4x + 2 y = 3.4x - 2 How did the Kingdom of Mali benefit from the salt and gold trade routes?A. It built trade routes to gain protection from invaders.B. It formed alliances with Christian states along trade routes.C. It grew wealthy by controlling trade routes.D. It separated itself from its neighbors by shutting down trade routes. if your smart enough to answer this then ill give brainliest 1/2 of _______ = 62AnSwEr PlS What value of x makes this equation true? HELP ASAP I GOTTA TURN THIS HOMEWORK I N PLZ PLZ HELP is photosynthesis a carbon sink? Do you think the ad will change womens purchasing habits when it comes to shampoo? Explain. Select the best answer to the question: What is an example of a fortuitous event? *showing up on time for a dateforgetting to take out the trashcomforting a friend who is feeling sadrunning into an old friend who is in town for one day 1. Los estudiantes los verbos. (repetir) 2. Yo videojuegos buenos. (conseguir) 3. Por favor, yo su cooperacin. (pedir) 4. Su nio todo. (repetir) 5. Carlos una computadora pequea. (conseguir) 6. No encontramos el estadio porque no el mapa. (seguir) 7. T no la verdad! (decir) 8. Qu tus padres? (decir) 9. Laura y Rosa Mara el premio. (conseguir) 10. En la clase de ciencias nosotros los experimentos. (repetir) What is the nth term rule of the quadratic sequence below?8,14,22,32,44,58,74,... can someone please help A number m is no less than 1 or less than or equal to 5. What poisonous chemical is used to separate the gold from the waste material?| I need help with my Spanish homework HELPPPPP!!!!I need help!!!!Pleaseeeeeee!!!!!! in which graph is y a linear function of x will mark brainiest The price of a dishwasher was reduced from $400 to $200 because it was on clearance. By what is the percent decrease in price of the dishwasher?