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
makkiz [27]
3 years ago
10

How do you simplify this expression then evaluate it if x=2? 5x - 2 + 3 - x

Mathematics
1 answer:
DIA [1.3K]3 years ago
7 0

You just put all of the like terms together, if it has an X combine it and if it doesn't have an X combine it. You end up with 4x-5

You might be interested in
For the function f(x) = -5x, which ordered pair will be a point on the graph of the function?
Kipish [7]
The answer would be D 0,0
4 0
3 years ago
A hot air balloon in flight begins to ascend at a steady rate of 120 feet per minute. After 1.5 minutes, the balloon is at an al
azamat

Answer:

The balloon will not reach 2,500 feet after 4 minutes.

Step-by-step explanation:

The equation of the line in the point-slope form is

y-y_1=m(x-x_1)

A hot air balloon in flight begins to ascend at a steady rate of 120 feet per minute, then the slope is

m=120

After x_1=1.5 minutes, the balloon is at an altitude of y_1=2,150 feet. This means, the line passes through the point (1.5, 2,150).

Substitute the slope and point coordinates into the equation:

y-2,150=120(x-1.5)

We know that after 3 minutes, the balloon is at an altitude of 2,330 feet. Check this:

2,330-2,150=180\\ \\120(3-1.5)=120\cdot 1.5=180\\ \\2,330-2,150=120(3-1.5)

Now, find the height after 4 minutes:

y-2,150=120(4-1.5)\\ \\y=120\cdot 2.5+2,150=300+2,150=2,450

Thus, the balloon will reach only 2,450 feet after 4 minutes.

4 0
3 years ago
Please help for brainliest answer
erma4kov [3.2K]

Answer:

874.6

Step-by-step explanation

Profit = Sales - Costs

Profits by day:

Mon:

225 - (225*0.12) -9 = 189.0

Tue

260 - (260*0.12) -9 = 219.9

Wed

230 - (230*0.12)-9 = 193.4

Thu

180 - (180*0.12) - 9 = 149.4

Fri

150 - (150*0.12) -9 = 123.0

Total:

189+219.9+193.4+149.4+123 = 874.6

6 0
3 years ago
Gary has a box of pencils. In the box, 7/21 of the pencils have been sharpened. Select the three fractions that are proportional
Luda [366]

Answer:

A) 1/3 D) 13/39 E) 14/42

Step-by-step explanation:

hope this helps. brainliest please.

8 0
3 years ago
Read 2 more answers
Expand and simplify (√10-√2)² Give your answer in the formn b-c√5 where b and c are integers
vesna_86 [32]

Answer:

12-4√5

Step-by-step explanation:

(√10-√2)²

(√10-√2)(√10-√2)

Foil/distribute

10-√20-√20+2

12-2√20

12-2√4*√5

12-2*2√5

12-4√5

5 0
2 years ago
Other questions:
  • A party rental company has chairs and tables for rent. The total cost to rent 3 chairs and 5 tables is $49 . The total cost to r
    13·2 answers
  • What is 3/-4 ÷ (-2 1/3) ​
    5·2 answers
  • While taking inventory at her bakery, Ruby noticed that she had 5⁄6 pound of cinnamon yesterday, but now had only 2⁄3 pound. How
    10·1 answer
  • There are seven boys and five girls in a class. The teacher randomly selects three different students to answer questions. The f
    13·2 answers
  • Which type of triangle has side measures of 6 cm, 7 cm, and 12 cm and one angle with a measure of 120°?
    11·2 answers
  • Which of these could be the value of x in the triangle below
    6·1 answer
  • I need help with some math?????????​
    13·1 answer
  • Given m<br> n, find the value of x and y.<br> m<br> yo<br> (8x+12)<br> (3x-8)
    11·1 answer
  • You buy 11 bagels with a $20 bill. How much change do you receive and how many more could you buy, using the $20 bill?
    7·1 answer
  • Aiden invests money in an account paying simple interest. He invests $40 and no money is added or removed from the investment. A
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!