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
Nikolay [14]
3 years ago
6

Mr.James bought 3 boxes of pencils for 34.89. Each box of pencils cost the same which equation can be used to find the cost ,c o

f each box

Mathematics
1 answer:
Elina [12.6K]3 years ago
4 0
The answer is number 1
$34.89= 3xc
You might be interested in
Ken wants to install a row of ceramic tiles on a wall that is 21 3/8 inches wide. Each tile is 4 1/2 inches wide. What fraction
pentagon [3]

Answer: 1/4

Step-by-step explanation:

He needs 4 3/4 whole tiles, you could round it to 5 whole tiles. He needed 4 3/4 whole tiles. To completely fill in all the spaces on the wall evenly, it needs to be 5 even, while, tiles. To fill in the empty space, you must subtract 5 and 4 3/4, which explains why Part A says “How many whole tiles does he need” and the answer “4 3/4” So, Subtraction: 5- 4 3/4 = 1/4!

Your welcome :)

6 0
2 years ago
What single decimal multiplier would you use to increase by 18% followed by a<br> 12% decrease?
ValentinkaMS [17]

Answer:

The single decimal multiplier used to increase by 18% followed by a  12% decrease is 0.21.

Step-by-step explanation:

Let 'x' be the number

As first the number has to be increased by 18%

so

Step 1: write the percentage '18%' in decimal form

18% = 0.18    

Step 2: For percentage increases: add the decimal to 1

1 + 0.18 = 1.18    

Step 3: Multiply the number x by the multiplier, found in Step 2

x × 1.18 = 1.18x

<u><em>NEXT WE HAVE TO DECREASE 1.18x by 12%</em></u>

Apply the same method but with a number 1.18x

  • Write the percentage '12%' in decimal form

12% = 0.12

  • For percentage decreases: subtract the decimal to 1

1 - 0.18 = 0.18

  • Multiply the number 1.18x by the multiplier, found in Previous step

1.18x × 0.18 = 0.21x

Therefore, the single decimal multiplier used to increase by 18% followed by a  12% decrease is 0.21.

7 0
2 years ago
What value of b makes the trinomial below a perfect square x^2-bx+100
Aloiza [94]
1. Perfect square trinomials, are 2nd degree polynomials, of the form          a x^{2} +bx+c so that a \neq 0, b \neq 0, c \neq 0, which can be written as perfect squares.

2. For example (x+1) ^{2} = x^{2} +2x+1&#10; &#10;(3x-1)^{2}= (3x)^{2}-2(3x)+(-1) ^{2}= 9x^{2}-6x+1    &#10;

3. Thus x^{2} +2x+1, 9x^{2}-6x+1 are perfect square trinomials.

4. x^{2} -bx+100= x^{2} -bx+ 10^{2}= (x+10)^{2}   or  (x-10)^{2}

5. In the first case -b=20, so b=-20. In the second case, -b=-20, so b=20.

6. b∈{-20, 20}
6 0
2 years ago
Write an equation in point slope form for each line<br> Slope is 3 and (-2,-1) is on the line
elena-14-01-66 [18.8K]

Answer:

\huge  \blue{y + 1 = 3(x + 2) } \\

Step-by-step explanation:

To find an equation of a line in point slope form when given the slope and a point we use the formula

y -  y_1 = m(x -  x_1)

From the question we have the final answer as

y + 1 = 3(x + 2)

Hope this helps you

6 0
3 years ago
I need help fast it’s a timed test
AleksAgata [21]

Answer:

x=7

Step-by-step explanation:

Add 10 to both sides to isolate x.

4x=28

x=7

7 0
3 years ago
Read 2 more answers
Other questions:
  • Mark as brainliest!!
    8·2 answers
  • What is the maximum height of the basketball when the player passes the ball to someone? Initially, the ball moves at a speed of
    6·1 answer
  • The box is 2.1 feet long,2.7 feet wide and 3.2 feet high. What is closest to the total surface area of the box?
    7·2 answers
  • Answer The Question Below In The Image
    6·1 answer
  • What is this answer16a2-4b
    6·1 answer
  • Pls help me with this question. The last collum is 8th grade I know it I hard to read
    15·2 answers
  • Algebra 1 brainilest if correct and reported if not answered.
    7·1 answer
  • Nick will move a storage bin from its current location to the new location shown on the coordinate plane. Describe how Nick coul
    13·1 answer
  • For a population with μ = 60 , X=81, and σ = 12. Find the z-score for 81.
    13·1 answer
  • NO LINKS!! Please help me with this problem​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!