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ryzh [129]
3 years ago
9

An art gallery has 8 new paintings, all the same size, but enough room on the wall for only 6 of them. How many ways can the dir

ector arrange the 8 paintings on the wall? A. 48 B. 28 C. 20,160 D. 40,320
Mathematics
1 answer:
algol133 years ago
5 0
There are 8 choices for the first painting on the wall, 7 choices for the second, and so on, down to three choices for the sixth.  Our result is thus 8*7*6*5*4*3=20,160.  C is the correct answer.
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Hi i need help with this
ICE Princess25 [194]
The range would be [-4, infinity) because range is the y-value. The lowest y-value is -4. The greatest y-value goes up to infinity.
7 0
3 years ago
Jenny made $120 for 8 hours of work. How much would jenny make for 40 hours of work? Use a proportion to show your work in the s
WITCHER [35]

Answer:

$600

Step-by-step explanation:

For 8 hours she makes $120

For 1 hour she makes $120÷8 = $15

For 40 hours she makes $15 × 40 = $600

Our final answer is $600

Hope this helped and have a good day

4 0
2 years ago
Read 2 more answers
7(2x-5)=21<br><br> What is x?
Over [174]

Answer:

x = 4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Equality Properties

Step-by-step explanation:

<u>Step 1: Define Equation</u>

7(2x - 5) = 21

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. Distribute 7:                   2x - 5 = 3
  2. Isolate <em>x</em> term:                2x = 8
  3. Isolate <em>x</em>:                         x = 4

<u>Step 3: Check</u>

<em>Plug in x into the original equation to verify it's a solution.</em>

  1. Substitute in <em>x</em>:                  7(2(4) - 5) = 21
  2. Multiply:                             7(8 - 5) = 21
  3. Subtract:                            7(3) = 21
  4. Multiply:                             21 = 21

Here we see that 21 does indeed equal 21.

∴ x = 4 is the solution to the equation.

6 0
2 years ago
What is the value of x?<br> 5x+11°<br> 119°
frutty [35]

Answer:

21.6

Step-by-step explanation:

119 = 5x + 11

119 - 11 = 5x

108 = 5x

108÷5 = x

21.6 = x

hope this helped you.

please give me brainliest.

thank you and have a great day ahead :D

8 0
3 years ago
Hello can someone please help me on this :)
Zielflug [23.3K]

Answer:

Step-by-step explanation:

1.

Find value of P that makes this true

4p-5=`9

Solve for P by isolating it on one side:

4p-5+5=9+5

4p/4=14/4

P=3.5

2.

Translate the Algebraic Expression:

A waiter earns $128 for 6 hours of work including $86 of tips.

Subtract tips from total:

128-86=42

Divide Value between hours.

42/6=7

$7 per hour

3.

Find the Value of X that makes this true

-4x+26=-2

Solve for X by isolating it on one side:

-4x+26-26=-2-26

-4x/-4=-28/-4

X=7

4.

What is the first correct step in solving the equation:

33-2x=31

Subtract 33 from both sides

HOPE I HELPED!

BRAINLIEST WOULD BE APPRECIATED!

6 0
2 years ago
Read 2 more answers
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