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
Minchanka [31]
2 years ago
13

Someone help me with this math homework please!

Mathematics
1 answer:
Reil [10]2 years ago
3 0

Answer:

Option number B

Step-by-step explanation:

As per the statement:

Pieter wrote and solved an equation that models the number of hours it takes to dig a well to a level of 72 feet below sea level.

Given the equation as:

7h - 5 ( 3h -8 ) = -72

Using distributive property, 

a ⋅ ( b + c ) = a ⋅ b + a ⋅ c

7h - 15h + 40 = - 72

Combine like terms;

-8h + 40 = -72

Subtract 40 from both sides we have;

-8h 8= -112

Divide both sides by -8 we have;

h = 14 hours

Therefore, the statement is true about Pieter’s solution is, It must be a positive number since it represents a number of hours.

You might be interested in
NEED THIS DONE SOON
Sati [7]

65Answer:

we can use sin to find the missing length

Step-by-step explanation:

The ratio states that sin of an angle=opposite/hypotenuse

sin(65)=x/6 since we know the angle and the hypotenuse we need to figure out the opposite side

sin(65)=0.906307...

0.906307=x/6

Multiply 6 on both sides to isolate x

The answer is 5.4378...

Rounded to the hundredth is 5.44

5 0
2 years ago
I don’t get this T-chart
Sidana [21]

Yes. It is most likely a proportional relationship.

Divide $55 by 6(hr)

He gets $9.16 an hour, $18.32 for 2 hours, and so on...

Just multiply 9.16 by how many hours you want

8 0
3 years ago
Read 2 more answers
What is the lateral area of the rectangular prism? Assume the prism is resting on its base. A. 135 in2 B. 270 in2 C. 300 in2 D.
Olegator [25]
You have the length of the sides? If not: a and b is the length of the scratch, h is the height <span>This lateral surface area = 2ah+2bh=2h(a+b)</span>
8 0
3 years ago
Please answer and its math ​
Arte-miy333 [17]

one correct equation would be 2x=28 to depict the amount of money earned and then you would do 28/3 to find out the amount of money they each have after splitting the money they earned.

3 0
3 years ago
What is the common point between lines y = -x + 7 and y = 3x + 10?
neonofarm [45]
Did you figure it out yet? lol
4 0
3 years ago
Other questions:
  • Find the length of PR¯¯¯¯¯¯¯
    5·2 answers
  • Barbara is planning a party . she invited some school friends and 2 times as many friends from her swimming club as school frien
    11·1 answer
  • If a positive number a is 150 percent of 4p, and if p is
    7·1 answer
  • What is 3 square root 18
    14·1 answer
  • A fire station is located 2 units to the east and 6 units to the north of a hospital.if the hospital is located at (-2,-3) on a
    9·2 answers
  • The term "jet stream" is often used by weather forecasters to describe
    10·2 answers
  • Jordan went shopping last weekend and bought a pair of shoes. The shoes were originally priced at $124.00, but are now on sale f
    14·1 answer
  • Pls help with these math questions. Don't just do it for points pls I really need help . 3 questions Multiple choice
    7·1 answer
  • PLEASE I NEED HELP W THIS ASAP THANK YOU GUYS PLEASE
    15·2 answers
  • Help<br> I can't understand this
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!