1answer.
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
arsen [322]
2 years ago
12

Joanne cannot decide which of two washing machines to buy. The selling price of each is ​$480 The first is marked down by ​%50 T

he second is marked down by ​%30 with an additional ​%20 off. Find the sale price of each washing machine. Use pencil and paper. Explain why should buy the first washing machine rather than the second if the machines are the same except for the selling price.
Mathematics
2 answers:
serious [3.7K]2 years ago
5 0

Answer:

i can not be cas  thae are the same

Step-by-step explanation:

viktelen [127]2 years ago
4 0

Answer: She should buy the first machine because it’s cheaper than the second.

Step-by-step explanation:

The first is marked down 50% which makes it $240 rather than $480.

The second is marked down 30%, making it $336 and then another 20% making it $268.80.

The second machine is $28.80 more than the first.

You might be interested in
A cone has a slant length of 10 and a diameter of 8. Height is unknown.
patriot [66]

Answer: 153.56

Step-by-step explanation:

Hi, to answer this question we have to apply the next formulas:

Volume of a cone: 1/3 π r² h

Where r is the radius and h is the height (unknown)

Diameter = r x 2

8 = 2r

8/2 =r

r = 4  

Before calculating the volume we have to apply the Pythagorean Theorem to find h. (where the slant is the hypotenuse and h and r are the sides of the triangle)

10 ² = h² + 4²

Solving for h

100 = h² + 16

100-16 = h²

84= h²  

√84 =h

9.16= h

Back on the volume formula:

V= 1/3 π r² h

V =1/3 π 4² (9.16) =153.56

6 0
3 years ago
Maths- please help me with this Q
Reika [66]

Step-by-step explanation:

please mark me as brainlest

5 0
2 years ago
Read 2 more answers
Which of the following is a statistical question?
erastova [34]

Answer: A

Step-by-step explanation: A is the statistical question since it complies many test scores together

6 0
3 years ago
The area of a rectangular room is 750 square feet. The width of the room is 5 feet less than the length of the room.
neonofarm [45]
The third one. width=y-5
6 0
3 years ago
I just need no. a please help me to prove this. ​
OleMash [197]

Answer:  see proof below

<u>Step-by-step explanation:</u>

Given: A + B + C = π    and         cos A = cos B · cos C

scratchwork:

  A + B + C = π

               A = π - (B + C)

         cos A = cos [π - (B + C)]                              Apply cos

                    = - cos (B + C)                                    Simplify

                    = -(cos B · cos C - sin B · sin C)          Sum Identity

                    = sin B · sin C - cos B · cos C               Simplify

cos B · cos C = sin B · sin C - cos B · cos C               Substitution

2cos B · cos C = sin B · sin C                                        Addition

                     2=\dfrac{\sin B\cdot \sin C}{\cos B \cdot \cos C}                                     Division

                     2 = tan B · tan C

\text{Use the Sum Identity:}\quad \tan(B+C)=\dfrac{\tan B+\tan C}{1-\tan B\cdot \tan C}

<u>Proof LHS → RHS</u>

Given:                              A + B + C = π

Subtraction:                     A = π - (B + C)

Apply tan:                  tan A = tan(π - (B + C))

Simplify:                               = - tan (B + C)

\text{Sum Identity:}\qquad \qquad \qquad =-\bigg(\dfrac{\tan B+\tan C}{1-\tan B\cdot \tan C}\bigg)

Substitution:                        = -(tan B + tan C)/(1 - 2)

Simplify:                               = -(tan B + tan C)/-1

                                            = tan B + tan C

LHS = RHS:   tan B + tan C = tan B + tan C  \checkmark

5 0
3 years ago
Other questions:
  • (Please help me!! ;) 20 points!!!)The hose filled the 100-gallon tank in 8 hours. Which shows the flow rate of the hose
    12·2 answers
  • Is 0.446 closer to 0.4 or 0.5
    7·1 answer
  • Which rectangles have the same perimeter?
    8·2 answers
  • Crunch Bunch cereal boxes come in two sizes. The mini cereal box of Crunch Bunch is a reduction of the standard box. A standard
    7·2 answers
  • According to a government commision, 70% of all the nation’s households have vcrs. In a random sample of 15 households, what is
    5·1 answer
  • You have 3 pounds of egg whites. You need 8 oz to make one serving of consommé.How many servings can you make?
    10·1 answer
  • How do i simplify the rational function: (x^2-4)/(x+2) if x ≠ -2?
    7·1 answer
  • Justin uses 2/3
    8·1 answer
  • Jenna borrows $8,000 for college at a yearly simple interest rate of 6%. She takes
    13·2 answers
  • A state offers specialty license plates that contain 5 numbers followed by 2 letters. License plates are assigned randomly. All
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!