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
skelet666 [1.2K]
3 years ago
8

WILL GIVE 98 POINTS!!!! NOT PLAYING!!!!!!! WILL MARK BRAINLIEST!!!!!!!! + THANKS AND 5 STAR RATING!!!!!!!! JUST ANSWER ALL QUEST

IONS LIKE 8 QUESTIONS.
Instructions
Sarah’s neighbor offers to pay her $5 for every shark tooth she finds on the beach. After collecting only three shark’s teeth, Sarah decides to share the opportunity with her friend John. Sarah can find shark teeth twice as fast as John, but she can earn even more money with his help.
Sarah can use the expression 5(2j + 3 + j) to represent the amount of money she can earn.
Part 1: Writing Expressions
Write an expression that looks like Sarah’s expression: 5(2j + 3 + j). Replace the coefficients so that your expression is not equivalent. You may use any number that you choose to replace the coefficients. Be sure to leave the variables the same. For example, 8(3j + 7 + 3j) looks like Sarah’s expression but is not equivalent.
Translate the algebraic expression you created in Question 1 to a verbal expression.
Part 2: Writing Equivalent Expressions
You will now use mathematical properties to create two expressions that are equivalent to the expression you created in Question 1. Make sure you show all the steps in your work.


Use either the commutative property or combine like terms to create an equivalent expression.
Use the distributive property to create an equivalent expression.
Pick a number from 1 to 10. Use that number to verify your three expressions (the original, the one from 3a, and the one from 3b) are equivalent by substituting it into each expression. Show all your work for complete credit.
Part 3: Finish the Story
Write a few sentences to end Sarah’s story. How many shark teeth did she find? How many shark teeth did John find? How much money did Sarah earn?
Choose a method to present your assignment. You may submit your work in a Word Document or you may choose to develop a PowerPoint presentation or video recording of yourself. Use your creativity! Make sure to include the information from all three parts in your Word Document or presentation.
Mathematics
1 answer:
just olya [345]3 years ago
3 0

Answer:The first one is 2.333333333

Step-by-step explanation:Simplifying

5(2 + -1j) + (2j + -3) = 0

(2 * 5 + -1j * 5) + (2j + -3) = 0

(10 + -5j) + (2j + -3) = 0

Reorder the terms:

10 + -5j + (-3 + 2j) = 0

Remove parenthesis around (-3 + 2j)

10 + -5j + -3 + 2j = 0

Reorder the terms:

10 + -3 + -5j + 2j = 0

Combine like terms: 10 + -3 = 7

7 + -5j + 2j = 0

Combine like terms: -5j + 2j = -3j

7 + -3j = 0

Solving

7 + -3j = 0

Solving for variable 'j'.

Move all terms containing j to the left, all other terms to the right.

Add '-7' to each side of the equation.

7 + -7 + -3j = 0 + -7

Combine like terms: 7 + -7 = 0

0 + -3j = 0 + -7

-3j = 0 + -7

Combine like terms: 0 + -7 = -7

-3j = -7

Divide each side by '-3'.

j = 2.333333333

Simplifying

j = 2.333333333

You might be interested in
Kona’s mother realized that her age is the difference of Kona’s age squared and four. If k represents Kona’s age, which expressi
solmaris [256]

Answer:

k squared minus 4/ A

Step-by-step explanation:

took the test

4 0
3 years ago
Read 2 more answers
An aquarium tank is 3 feet long 1 foot wide and 2 feet high how many gallons of water would it take to fill the tank two thirds
m_a_m_a [10]

Answer: i believe it'll take 6 gallons to fill up the tank two thirds full

Step-by-step explanation: 3 x 1 x 2 = 6 gallons

6 0
3 years ago
Find BC<br> (triangle)<br> sides = 20mi, 22mi<br> inside = 95 degrees
Hunter-Best [27]
To solve this problem you need to know the law of cosines.

7 0
3 years ago
Please solve 2x+1&lt;1 or x+5&gt;8 for me please xx &lt;3​
Zolol [24]

Answer:

x=0

Step-by-step explanation:

Subtract 1 from both sides

2x+1-1<1-1

Simplify the arithmetic

2x<1-1

Simplify the arithmetic

2x<0

Isolate the X

X=0

3 0
3 years ago
Use the figure to the right to find the value of PT. Pt=4x + 9 and TQ= 6x - 5
zhuklara [117]

Answer:

The answer is

Step-by-step explanation:

PT 4x+9

TQ 6x-5

PT 13x

TQ 1x

The value of PT is 13 x

6 0
2 years ago
Other questions:
  • The two-way table shows the number of students in a school who have bikes and/or skateboards at home:
    12·2 answers
  • The formula for glue says to add 50ML
    7·1 answer
  • 27- 2b greater or equal to - 6
    6·1 answer
  • F(x)=x^2+3x ... find f(2-a)
    9·2 answers
  • Help ill give you brainliest
    8·1 answer
  • . Bryon competes on the school debate team. He won 0.40 of the debates in which he participated. Which statement is not true abo
    5·1 answer
  • What is the largest two-digit number that is a multiple of 5 and 10 at the same time?
    8·1 answer
  • In what time the compound amount of Rs 60000 at 10% rate is rs 79860?​
    5·1 answer
  • MATH if someone can please help that would be amazing thank you!
    8·1 answer
  • Find the product xy if<br><br>2^(x)+3^(y)=5,<br><br>2^(x+2)+3^(y+1)=18
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!