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
frosja888 [35]
2 years ago
12

How many is this 2( 9 - 7r ) + 8r

Mathematics
2 answers:
xz_007 [3.2K]2 years ago
7 0

solving steps:

2( 9 - 7r ) + 8r

2(9) - 2(7r) + 8r

18 - 14r + 8r

18 - 6r

Pachacha [2.7K]2 years ago
6 0

Answer:

18 - 6r

Step-by-step explanation:

2(9 - 7r) + 8r

Expand the brackets:

⇒ 2 · 9 - 2 · 7r + 8r

⇒ 18 - 14r + 8r

Combine like terms:

⇒ 18 - 6r

You might be interested in
I'm not smart and I stink at math so can someone plz help me 12/x = 8
tensa zangetsu [6.8K]

1. We need to get rid of all the denominator in this equation.

  • This can be done by multiplying left and right sides by the LCD.
  • In the problem: 12/x = 8, the LCD is X.

12/x = 8 is now 12 = x * 8

1a. 8 * x = 8x

Now, your answer is 3/2, but It's improper. Let's convert it into a mixed number.

Subtract 3 by 2.

3 - 2 = 1

3/2 = 1 1/2

Therefore, your answer is 1 1/2. Also, the answer is 1.5.

4 0
3 years ago
You work in a furniture repair shop and are taking apart an old table to refinish it. You are trying to remove a bolt with a wre
Mumz [18]

Answer: 17/32 or 9/16 if the first one is not an option

Step-by-step explanation:

6 0
3 years ago
-2/3x= -12 solve for x
kogti [31]

Answer:

The answer is 18

Step-by-step explanation:

5 0
4 years ago
1)An exam worth 172 points contains 30 questions. Some questions are worth 2 points, and the others are worth 9 points. How many
lisabon 2012 [21]
1) x+y=302x+9y=172x=-y+30-2y+60+9y=1727y=112y=16x=14
14 2-point questions and 16 9-point questions
2) c+a=163
6c+13a=1566
c=-a+163
-6a+976+13a=1566
7a=588
a=84
c=79
84 adult tickets and 79 children tickets
3) a+c=15; ax+cy=132
8+7=15; 8x+7y=132

a+c=9; ax+cy=72
4+5=9; 4x+5y=72

8x+7y=132
4x+5y=72
(8x+10y)=(144)

8x=-7y+132
8x=-10y+144
-7y+132=-10y+144
3y=12
y=4
4x+20=72
4x=52
x=13
The price for an adult ticket is $13 and the price for a child ticket is $4
3 0
3 years ago
On Saturday Hattie biked 3.2 hours at the speed of 12.5 mph on Sunday she buys 2.5 hours at a speed of 14.3 mph how much farther
ddd [48]
4.25 miles is your answer.
4 0
3 years ago
Other questions:
  • Which has the same sum as 67+14
    11·1 answer
  • Solve For 'X'. Round to nearest hundredths and include labels. TIP; Might want to change your calculator to "RAD".
    11·1 answer
  • Three consecutive odd numbers have a sum of 75.<br><br> What is the greatest number?
    14·1 answer
  • The altitude of the regular quadrilateral prism is h=13 cm and lateral area is AL = 624 cm2. Find: 1) The Surface Area of the pr
    15·1 answer
  • Solve:<br><br> 2(3r+4)−3(r+1)=11<br> A <br> 0<br> B <br> 2<br> C <br> 3<br> D <br> 163
    15·1 answer
  • Rita earns $18.00 per hour. If she gets a 4% raise, what will be her new hourly wage?
    10·2 answers
  • Help pls :)
    12·1 answer
  • carolette is making necklace's in blue and orange her ratio of blue beads to orange beads are 3 to 2 how many beads will carolet
    7·1 answer
  • You are purchasing Cotton swabs that come in 2 different sized containers. One box contains 300 swabs for 2.99 and the other box
    7·1 answer
  • The first and fourth terms of a proportion are called the means.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!