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
rosijanka [135]
3 years ago
14

What property justifies 4x=7

Mathematics
2 answers:
Usimov [2.4K]3 years ago
8 0

Answer:

x=1.5

Step-by-step explanation:

konstantin123 [22]3 years ago
6 0

Answer:

exact form x=7/4

decimal form x=1.75

mixed number form x=1 3/4

Step-by-step explanation:

You might be interested in
Which of the following sets is not finite?
Alja [10]
\{x|x\in\mathbb{N}\ \wedge\ n < 10\}=\{0;\ 1;\ 2;\ 3;\ 4;\ 5;\ 6;\ 7;\ 8;\ 9\}-FINITE\\\\\{x|x\in\mathbb{Z}\ \wedge\ 0 < x < 10\}=\{1;\ 2;\ 3;\ 4;\ 5;\ 6;\ 7;\ 8;\ 9\}-FINITE\\\\\{x|x\in\mathbb{Z}\ \wedge\ x < 0\}=\{...;-4;-3;-2;-1\}=\mathbb{Z}^--NOT\ FINITE
8 0
3 years ago
Cecilia's family travel 2/7 of the distance your uncles house on Saturday. They traveled 4/5 of the remaining distance on Sunday
Korolek [52]

Answer:

1 3/35

Step-by-step explanation:

3 0
3 years ago
at maximum speed, an airplane travels 1720 miles against th wind in 5 hours. Flying with the wind, the plane can travel the same
iragen [17]

Answer:

x = 387

Step-by-step explanation:

The wind acts in the opposite direction to the plane when the time is longer.

The wind acts in the same direction as the plane when the time is shorter.

Equation

d = r*t

Givens

  • d = 1720
  • x = plane's speed
  • y = wind speed
  • t1 = 5 hours
  • t2 = 4 hours.

Substitution

  • d = (x + y) * t
  • 1720 = (x + y) * 4
  • 1720 = (x - y) * 5

Since the two distances are the same, you can equate the right hand sides.

  • (x + y) * 4 = (x - y)*5              Remove the brackets.
  • 4x + 4y = 5x - 5y                  Add 5y to both sides
  • 4x + 4y + 5y = 5x - 5y + 5y  Combine all the terms.
  • 4x + 9y = 5x                          Subtract 4x from both sides
  • 9y + 4x - 4x = 5x - 4x           Combine
  • 9y = x

Now use one of the given equations with the distance

  • 1720 = (x + y)*4           Substitute 9y for x
  • 1720 = (9y + y) *  4      Combine
  • 1720 = 10y * 4             Multiply the right
  • 1720 = 40y                  Divide by 40
  • 1720/40 = 40y/40      Do the division
  • 43 = y                          y = wind speek
  • 9y = x                          x = 9*y  
  • 9*43 = x
  • x = 387 miles per hour.
4 0
4 years ago
A steel cargo container is shaped like a cube measuring 5.2 ft on each edge how much steel is needed to make this container? Sho
bearhunter [10]

Answer:

162.24 ft

Step-by-step explanation:

So you first find the area of one side.

5.2 x 5.2 = 27.4

Then you times it by 6, because a cube has 6 sides.

27.4 x 6 = 162.24 ft

6 0
3 years ago
Simplify |−3 − 8|<br> A. –11<br><br> B. –5<br><br> C. 5<br><br> D. 11
bazaltina [42]

Answer:

<h3>It's answer is D. 11 </h3>

Here we can see there is modulus so

while doing calculation

| -3-8 |

| -11 |

Here it is modulus so - changes into +

so it's answer is 11.

8 0
3 years ago
Other questions:
  • Solve 3(x-7) =12 please
    15·2 answers
  • Determine f(2) where f(x)= x+1/4x-2
    7·1 answer
  • If 200 cookies are baked and 50 have gone down to digestion, how much has been eaten and how much hasn't.
    9·2 answers
  • Find the distance between -3 and 4. A) -12 eliminate b) -7 c) -1 d) 7
    15·1 answer
  • Which of the following is true? a. A hypothesis is a measure, such as price or quantity, that can take on different values at di
    14·1 answer
  • If y=15 when x=3/4, find x when y =25. Show work please!
    11·1 answer
  • One batch of cookies takes two and two-fifths cups of milk. How many cups of milk will 25 batches of cookies require?
    14·1 answer
  • Find the solutions to the equation below 9x^2 -81=0
    5·1 answer
  • What is the lateral area of the cone?
    10·1 answer
  • Please answer because I need this now!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!