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
vredina [299]
2 years ago
5

How can properties of operations be used to add expressions?

Mathematics
1 answer:
Gelneren [198K]2 years ago
7 0
Use this. Hope it helps

You might be interested in
Train a And train b leave Central Station at the same time they travel the same speed but in opposite direction with a train a h
kramer

Answer:

Both trains are traveling at 90 miles per hour.

Step-by-step explanation:

We are told that the rate is the same for both trains, and we know that the distance traveled by train a plus the distance traveled by train b equals 585 miles.

We will use Distance=Rate* Time formula to solve this problem.

Train A: D_a=R*2.5 (Using 2.5 instead of 2 and 1/2)

Train B: D_b=R*4

We can set an equation to solve for rate R of trains as:

D_a+D_b=585

2.5R+4R=585

6.5 R=585

R=\frac{585}{6.5}

R=90

Therefore, rate of both train a and train b is 90 miles per hour.



6 0
3 years ago
Read 2 more answers
Please help me with this, I'd really appreciate it :)
WARRIOR [948]
∠DCB = 128° and ∠ECD = 52°
8 0
3 years ago
Read 2 more answers
Ellen is making placemats. She has 8 rolls of lace. She uses 1/6 of the rolls of lace to decorate the placemats. How much of the
maksim [4K]

Answer:

the answer is 31

Step-by-step explanation:

trust me bro

8 0
3 years ago
40% of what number is 14
Virty [35]
0.4x = 14
x = 14/0.4 = 35
6 0
3 years ago
If x is directly proportional to y and x=3.4 when y=2 find y when x=5.1
dlinn [17]
The Answer is b. Hope that helps
5 0
2 years ago
Other questions:
  • 2 1/2 divided by 4. can you please answer i need help
    14·2 answers
  • A leaf hangs from a branch 12 feet in the air. It falls to the ground at a rate of 0.25 feet per second. Which graph could repre
    13·2 answers
  • Can a smart person give me the correct answer
    6·1 answer
  • I am a number between 60 and 100 my ones digit is two less than the digit in my ten. I'm a prime number what is my number?
    13·1 answer
  • 4m+9+5m-12=43 simplify and solve
    12·1 answer
  • Which fraction is the equivalent of 145%?<br> 0<br> |<br> 0<br> |<br> 0<br> |<br> 0<br> |
    10·1 answer
  • A box has a length of 5 cm, a width of 10 cm, and a height of 2 cm. The volume of the box is
    8·1 answer
  • How to solve thus through substitution method. please do it step by step
    11·2 answers
  • What is the percentage decrease of 3 hours to 1/2 hours<br><br>Im new at this kind of math
    6·1 answer
  • 9. Which equation could be used to find the area of the shaded triangle below?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!