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
Viktor [21]
2 years ago
13

3.

Mathematics
1 answer:
Y_Kistochka [10]2 years ago
8 0

Answer:

$(159+x)

Step-by-step explanation:

Given

Discount price = $x

Amount Emma paid after discount = $159

Original price = Amount paid + Discount

Original price= $159 + $x

Hence the required expression is $(159+x)

You might be interested in
Help me plzzzz...... .
Vlada [557]

x = 4.5 so it is 3/-8 = 4.5/12

7 0
3 years ago
Read 2 more answers
Kindly solve these questions for me.
OleMash [197]

The perimeter of the rectangle based on the factors given is 46.

<h3>How to calculate the perimeter?</h3>

The area of the rectangle is given as (x² + 13x - 90). This will be:

= (x² + 13x - 90)

= x² + 18x - 5x - 90

= x(x + 18) - 5(x + 18)

= (x - 5)(x + 18)

The sides of the rectangle are 5 and 18. The perimeter will be:

= 2(l + w)

= 2(5 + 18)

= 46

The area of the rectangle is given as (x² + 24x - 81.

= (x² + 24x - 81)

= x² + 27x - 3x - 81

= x(x + 27) - 3(x + 27)

= (x - 3)(x + 27)

The sides are 3 and 27. The perimeter will be:

= 2(l + w)

= 2(27 + 3)

= 60

= (x + 1)² + 3(x + 1) + 2

= (x + 1)(x + 1) + 3x + 3 + 2

= x² + x + x + 1 + 3x + 5

= x² + 5x + 6

Learn more about factors on:

brainly.com/question/219464

#SPJ1

4 0
1 year ago
Thomas wants to invite Madeline to a party. He has an 80% chance of bumping into her at school. Otherwise, he'll call her on the
mash [69]

Answer:

The probability of Thomas inviting Madeline to the party over the phone is 0.143.

Step-by-step explanation:

Consider the tree diagram below.

The events are denoted as follows:

<em>A</em> = Thomas bumps into Madeline at school

<em>B</em> = Thomas call Madeline on the phone

<em>X</em> = Thomas asks Madeline to the party

The information provided is:

P (A) = 0.80

P (B) = 1 - P (A) = 1 - 0.80 = 0.20

P (X|A) = 0.90

⇒ P (X'|A) = 1 - P (X|A) = 1 - 0.90 = 0.10

P (X|B) = 0.60

⇒ P (X'|B) = 1 - P (X|B) = 1 - 0.60 = 0.40

The conditional probability of event <em>U</em> given that another events <em>V</em> has already occurred is:

P(U|V)=\frac{P(V|U)P(U)}{P(V)}

The law of total probability states that:

P(V)=P(V|U)P(U)+P(V|U')P(U')

In this case we need to determine the probability that Thomas invites Madeline to the party over the phone, i.e. P (B|X).

Use the law of total probability to determine the value of P (X) as follows:

P(X) = P(X|A)P(A)+P(X|B)P(B)

         =(0.90\times 0.80)+(0.60\times 0.20)\\=0.72+0.12\\=0.84

Compute the value of P (B|X) as follows:

P(B|X)=\frac{P(X|B)P(B)}{P(X)}

             =\farc{0.60\times 0.20}{0.84}\\\\=0.14286\\\\\approx 0.143

Thus, the probability of Thomas inviting Madeline to the party over the phone is 0.143.

6 0
3 years ago
At the library by 9 books on a certain topic the librarian tells you that 55% of the books on this topic have been signed out ho
Alex17521 [72]
About 5 books have been signed out, so they still have 4.
7 0
3 years ago
Rewrite 2x+5y=3 using function notation​
marishachu [46]

Answer:

Given f(x) = x2 + 3x – 1, find

a) f(1)

b) f(–1)

c) f(a)

d) f(x – 1)

Step-by-step explanation:

a) f(1) = (1)2 + 3(1) – 1 = 3

b) f(–1) = (–1)2 + 3(–1) – 1 = –3

c) f(a) = a2 + 3a – 1

d) f(x – 1) = (x – 1)2 + 3(x – 1) – 1

= x2 – 2x + 1 + 3x – 3 – 1 = x2 + x –3

5 0
3 years ago
Other questions:
  • A boat travels N 31° E for 65 miles and then N 59° W for 102 miles. Find the distance of the boat from its starting point.
    6·2 answers
  • Diane walked her dog 4/10 of a mile in 5 days this week. how far did diane walk her dog this week?
    15·1 answer
  • Whoever answers I WILL MARK BRANLIEST !!!
    13·1 answer
  • the perimeter of a scalene triangle is 14.5 cm. the longest side is twice that of the shortest side. which equation can be used
    12·2 answers
  • Yikes mctugg bought 1/2pound of potato salad . He ate 2/3of it for lunch .How much potato salad was left for an afternoon snack
    14·1 answer
  • Shania is making a scale diagram of the badminton court at the community center. She uses a scale of 1 centimeter to 0.5 meter t
    14·1 answer
  • Q2:
    14·1 answer
  • What is 2/3 ÷ 4/5<br><br>2/3 <br>5/6<br>1 1/5<br>3 1/3​
    9·1 answer
  • Find the circumference, giving brainlies pls asap
    13·2 answers
  • PLZ I NEED THIS ASAP! ILL GIVE YOU BRAINLIST!! ALSO TRY TO PUT AN EXPLANATION!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!