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
Determine the equation for the given line in
Orlov [11]

Answer:

They are all in slope and intercept form already

Step-by-step explanation:

8 0
3 years ago
Which expression is equivalent to
Colt1911 [192]

Answer:

24h+6

Step-by-step explanation:

4 0
3 years ago
Plz help gotta finish before 11:59:((((
olasank [31]

Answer:

19/42

Step-by-step explanation:

multiply each fraction by the opposite denominator to get the same denominator for both 12+7=19 &6×7=42

8 0
3 years ago
If it is January then there are 31 days this month write the inverse of the conditional statement
Vera_Pavlovna [14]
January has 31 days so that mean january is friends with christmas.
6 0
3 years ago
Mr. Jones grades 12 exams
aniked [119]

Answer:

8 hours

Step-by-step explanation:

12/2= 6
He grades 6 exams per hour
48/6= 8
it would take 8 hours to grade 48 exams

Bonus:
it takes him 10 minutes to grade an exam. That doesnt matter for this question but it's good 2 know

5 0
2 years ago
Read 2 more answers
Other questions:
  • Subtract 386 from 72,000 work it out
    7·2 answers
  • What is the meaning of rate​
    13·2 answers
  • You have two jobs. one job pays $8 per hour and the other pays $6 per hour. you worked 20 hours total last week and earned $136.
    14·1 answer
  • Casey has 48 red peppers and 16 yellow peppers. If Casey wants to put the peppers into baskets so that each basket has the same
    6·1 answer
  • A line crosses the coordinates (-2,-5) and (3,5). What is the slope of the line?<br> 1
    14·1 answer
  • What is an equation of the line that passes through the points of (0,-4) and (-4,6)
    9·1 answer
  • What is the perimeter of the base, p, of this square-based pyramid? (attached image
    7·1 answer
  • cheryl says that when you add two negative numbers, the sum is always negative. is Cheryl's statement true of false?
    11·2 answers
  • A car rental agency advertised renting a car for 24.95$ per day and 0.29$ per mile. If Kevin rents this car for 3 days, how many
    15·1 answer
  • If it’s 9:04pm what time would it be 5 hours and 18 mins from then
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!