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mr_godi [17]
3 years ago
10

Select the equation(s), where 9 is a solution.

Mathematics
1 answer:
seraphim [82]3 years ago
7 0

Answer:

a and b

Step-by-step explanation:

a)

9+3x=36

3x=27

<em>x=9</em>

b)

57=6x+3

54=6x

<em>9=x</em>

c)

4x+3=43

4x=40

x=10

d)

4x=49

x=12.25

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4 gallons of paint cost a total $22.00. How much will 14 gallons cost? A. $60.50 B. $242.00 C. $82.00 D. $77.00
Nana76 [90]
The answer is D. $77.00. To get the cost for a single gallon you divide $22 by 4 gallons you get $5.50. To get the cost for 14 gallons you multiply $5.50 by 14 and you get the answer $77.00.
4 0
3 years ago
Mahnoor randomly selects times to walk into a local restaurant and observe the type of music being played. She found that the re
max2010maxim [7]

Answer:

country = 0.31

rock and roll =0.47

Blues = 0.22

Step-by-step explanation:

country = 11

Rock and roll= 17

blues = 8

Total = 36

the probabilities by dividing the frequencies by the total. ( round to the nearest hundredth.)

11/36 = country

17/36 = rock and roll

8/36 = blues

Divide

country = 0.31

rock and roll =0.47

Blues = 0.22

pls mark brainliest

8 0
3 years ago
Express the complex number in trigonometric form. (1 point) <br><br> -3i
maxonik [38]
The complex number is
-3i
There is no real number
a = 0
b = -3
The value of r is
√(0² + (-3)²) = 3

The trigonometric form of the comoplex number is
y = 3 cos θ
and 
x = 0
4 0
3 years ago
How many different 11-letter words (real or imaginary) can be formed from the letters in the word PROBABILITY?
Lostsunrise [7]
<h3>Answer:  9,979,200</h3>

This is one single number. It's just a bit under 10 million

Delete the commas if necessary.

==================================================

Explanation:

If we could tell the repeated letters apart, then there would be

11*10*9*8*7*6*5*4*3*2*1 = 39,916,800

different ways to scramble up the letters.

However, we have 2 copies of b and 2 copies of i

So we have to divide by 2*2 = 4 to correct this overcounting

(39,916,800)/4 = 9,979,200

6 0
2 years ago
Write 55 in standard form.<br> 3125<br> 3235<br> 5 x 5 x 5 x 5 x 5<br> 5 x 5 x 5 x 5
Ivenika [448]

9514 1404 393

Answer:

  3125

Step-by-step explanation:

Your calculator can help with this.

  5⁵ = 5×5×5×5×5 = 3125

4 0
2 years ago
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