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
Ne4ueva [31]
3 years ago
14

alex is traveling by train to a vacation spot that is 810 miles away. The train is traveling at 90 miles per hour, and it has al

ready covered 180 miles. In exactly how many hours will alex reach his destination from his current position
Mathematics
2 answers:
Elena L [17]3 years ago
4 0

Answer:

7 hours

Step-by-step explanation:

810 - 180 = 630

630/ 90 = 7

Korvikt [17]3 years ago
3 0

Answer:

x = 7 h

Explanation:

<em>First, we write the data of the problem. </em>

Alex travels 810 miles away

Train - 90 miles / h

Alex covers 180 miles.

How many hours does Alex walk in the distance?

1. Calculate the distance Alex still has to travel.

 810 miles - 180 miles = 630 miles

2. We take into account the speed of the train to calculate how many hours Alex will cover the remaining distance.

90 miles .... 1 h

630 miles .... x h

x = 630 milesx1h / 90 miles

x = 7 h

You might be interested in
Describe a relationship in which it would be reasonable to have a negative number in the domain or
Aliun [14]

Answer:

Relationship between temperature at different times of the day during the Winter period in places like Alaska and Minnesota in the USA.

Step-by-step explanation:

An example of a relationship that would have a negative number in the domain or range would be the relationship between the temperature at different times of the day during the snow period in the winter. It's well known that in places like Alaska and Minnesota in the USA, that during the winter when there's very heavy snow, the average temperature is usually below 0°C. The temperature is the dependent variable and is most likely negative in those 2 states and thus the range would have negative numbers.

7 0
3 years ago
Help please!
Alina [70]

Step-by-step explanation:

Given

f(x) = 8x - 9

Then

For a.

f(3y - 1 ) = 8(3y - 1 ) - 9

= 24y - 8 - 9

= 24y - 17

Now for b.

f(x) = - 23

or, 8x - 9 = - 23

8x = - 23 + 9

8x = - 14

x = - 14 / 8

x = - 7 / 4

Hope it will help :)

7 0
3 years ago
Need the steps and ASAP
Mars2501 [29]
What’s the question theirs nothing
8 0
3 years ago
Convert to a fraction 12 3\100​
sashaice [31]

Answer:

1203/100

Step-by-step explanation:

12 times 100 equals 1200 plus three equals 1203/100

8 0
3 years ago
Aaron wants to mulch his garden. His garden is x^2+18x+81 ft^2 One bag of mulch covers x^2-81 ft^2 . Divide the expressions and
blsea [12.9K]

Answer:

Step-by-step explanation:

Given

Garden: x^2+18x+81

One Bag: x^2 - 81

Requires

Determine the number of bags to cover the whole garden

This is calculated as thus;

Bags = \frac{x^2+18x+81}{x^2 - 81}

Expand the numerator

Bags = \frac{x^2+9x+9x+81}{x^2 - 81}

Bags = \frac{x(x+9)+9(x+9)}{x^2 - 81}

Bags = \frac{(x+9)(x+9)}{x^2 - 81}

Express 81 as 9²

Bags = \frac{(x+9)(x+9)}{x^2 - 9\²}

Evaluate as difference of two squares

Bags = \frac{(x+9)(x+9)}{(x - 9)(x+9)}

Bags = \frac{(x+9)}{(x - 9)}

Hence, the number of bags is Bags = \frac{(x+9)}{(x - 9)}

3 0
3 years ago
Other questions:
  • Simplify the following expression completely, where x is greater than or equal too 0.
    11·2 answers
  • jerry has a new job and earns a salary of $45000. Victoria has a new job and earns a salary of $54000 jerry will receive a salar
    14·1 answer
  • Natural resources that are used to make goods and services are considered _____. Equipment Money Land Labor
    13·1 answer
  • Which value satisfies the inequality -2x + 8 + 5x &gt; 2x + 1? A) -15 B) -10 C) -7 D) -5
    9·2 answers
  • A baby giraffe measures 6 feet tall when it is
    9·1 answer
  • A jewelry maker had 250 pieces of jewelry to sell at a local festival. she ended up selling 42% of the pieces she had made . How
    5·2 answers
  • Can someone help me pls? Surface area of rectangular prism.
    11·1 answer
  • Someone please help i can’t find the answer.
    14·1 answer
  • Please help me with this.
    15·1 answer
  • Mathematics.................
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!