Select the best real-world situation that can be represented by 15 + c = 19.50. Then solve the equation and describe what your answer represents for the problem situation.


A Mary wants to buy flowers and perfume. She has $19.50 to spend but has already spent $15 on perfume. How much does she have left to spend on flowers?

B Rachel earns $15 per hour. How long does it take her to earn $19.50?

C Sarah has $15 in her checking account but has written a check for $19.50. How much is she overdrawn?

D Jane has $19.50 to spend. How many roses can she buy if they are $15 each?

Answer:

19.5

4555.555555555555 hz

Step-by-step explanation:

Answer:

Sea level

Step-by-step explanation:

In geography, 'Elevation' is measured in relation to sea level, so sea level would be zero.

Thus, Chicago is 600 feet above sea level and Seely, California is 200 feet below sea level.

If there were nothing but flat land all the way from Seely to the ocean, sea water would come in and cover Seely. Fortunately for the people in Seely. California's coastal mountain range is between the town and the ocean, so that does not happen.

Answer:

It represents the "SEA LEVEL"

Answer:

1.) 107 observations

2.) the best veterinary hospital is likely to see the most severe cases with larger number of enteroliths

3.) A. sample size is too small for the central limit theorem to apply.

4.) The test requires that the sample mean is normally distributed; this requires that either the population distribution is Normal or the sample size exceeds 30.

5.) a Type I error

Step-by-step explanation:

n = [(Zcritical * σ) ÷ E]²

n = sample size

Zcritical at 99% = 2.58

E = error margin = 0.5

Standard deviation, σ = 2

n = [(2.58 * 2) ÷ 0.5]²

n = [5.16 ÷ 0.5]²

n = (10.32)²

n = 106.5024

n = 107 observations

B.) The thought or decision that the best veterinary hospital is likely to see the most severe cases with larger number of enteroliths will introduce a bias in the study.

C.) For central limit theorem ; sample size must be considerably large ; at least sample size, n ≥ 30

D.) Distribution must be normal it approximately normal, obeying the central limit theorem ; sample size must be considerably large ; at least sample size, n ≥ 30

Answer:

Step-by-step explanation:

Your first step will be to set up the problem:

f(x) - g(x)

Next you will substitute in your values:

(2x + 1) - (x2 - 7)

The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:

2x + 1 - x2 + 7

Then combine your like terms:

2x - x2 + 8

Lastly put your expression in standard form (highest exponent to lowest)

-x2 + 2x + 8

Hope this helped!

multiply 5.5 the width with 1.5 by 3 which gives you 24.75 inches feet long.

5.5 x 1.5 x 3=24.75 that's your answer.

Answer:297 cubic inches, other person is incorrect.




Step-by-step explanation:5.5 inches* 1.5inches * 3 feet
Convert 3 feet to inches and you have 36 inches. So now it becomes 5.5inches*1.5inches*36inches = 297 cubic inches

Answer:

7/24

Step-by-step explanation:

Hope this helps.

Answer:

Step-by-step explanation:

All the angles in a triangle add up to 180 degrees. Both angles are 36 degrees so that's 72 degrees.

Angle L = Angle J (Opposite angles are equal)

Angle L = 98

Angle K + Angle L = 180 (Adjacent angles are supplementary)

Angle K + 98 = 180

Angle K = 180 - 98

Angle K = 82

Angle M  = Angle K (Opposite angles are equal)

Angle M = 82

Answer:

200.96 units^2 or 64π units^2

Step-by-step explanation:

8^2(3.14) = 200.96 units^2 or 64π units^2

(multiplied by 2 to change the radius to diameter)

Answer:x=2y=3

Step-by-step explanation: I did this before

Answer:

5000+100=5100 it is short form

Answer:

5 x 10³ + 10²

hope it helps.....

Answer: 1000 HK dollars has the same value as 188.15 NZ dollars.

Step-by-step explanation:

We know that:

1 US dollar = 7.76 HK dollars

1 US dollar = 1.46 NZ dollars.

We have 1000 HK dollars, and we want to know the value in NZ dollars.

First, let's rewrite the 1000 HK dollars in US dollars.

Here we use the relation:

1 US dollar = 7.76 HK dollars

Then:

1 = (1 US dollar/7.76 HK dollars)

Then we can write:

1000 HK = (1000 HK)*1 = (1000 HK)*( (1 US /7.76 HK ))

1000 HK = (1000 HK/7.76 HK)* 1 US = 128.87 US

1000 HK  = 128.87 US

Now we can use the relationship:

1 US =  1.46 NZ

Then:

1 = (1.46 NZ)/(1 US)

So we can rewrite:

128.87 US = (128.87 US)*1 = (128.87 US)*( (1.46 NZ)/(1 US))

128.87 US = (128.87 US/1 US)*1.46 NZ = 188.15 NZ

Then:

1000 HK = 128.87 US = 188.15 NZ

So we can conclude that 1000 HK dollars has the same value as 188.15 NZ dollars.

Step-by-step explanation:

it's any of several statistics that measure an ordinal association. Measures the degree of similarity between two rankings.

Answer:

C

Step-by-step explanation:

You just plug in the # in the sequence you wanna find,

n=1

60((1)/(2))^(1-1) = 60  (1st term)

--

n=2

60((1)/(2))^(2-1) = 30 (2nd term)

--

n=3

60((1)/(2))^(3-1) = 15 (3rd term)

--

n=4

60((1)/(2))^(4-1) = 7.5 (4th term)

Answer:

6

Step-by-step explanation:

Answer:

21.8degrees

Step-by-step explanation:

Given the following

Length of shadow =opposite = 12ft

Height of tree = adjacent = 30ft

Required

angle of elevation

tan theta = opposite/adjacent

tan theta = 12/30

tan theta = 0.4

theta =  21.8degrees

angle of elevation is 21.8degrees

Answer:

C - 13*

Step-by-step explanation:

Answer:

(6,7),(9,6)

Step-by-step explanation:

HOPE THIS HELPS!!!!

Answer:

A) P' (0, -9)

Step-by-step explanation:

Answer:20

Step-by-step explanation:

just go on omni

Answer:

3 feet by 8 feet= 24 square feet

9 feet by 10 feet= 90 square feet

5 feet by 7 feet=  35 square feet

13 feet by 2 feet= 26 square feet

8 feet by 8 feet= 64 square feet

Step-by-step explanation:

Answer:

Sheesh that sucks um go help urself

Step-by-step explanation:

Answer:  

m=0

Step-by-step explanation:

How to solve your question 4 +5=5−4

Step 1: Rearrange Terms 4+5=5−4  4+5=−4+5

Step 2 : Subtract 5 from both sides 4+5=−4+5

                                                                   -5         -5

Step 3 : Simplify 4m= -4m

Step 4: Add 4m to both sides of the equation 4m= -4m

                                                                              +4    +4

Step 5:  Simplify 8m=0

m=0

Answer:

JK

Step-by-step explanation:

As it is shown in the diagram JK is the segment bisector of MN. That means JK cuts MN in half.

Answer:

I belibve it's c

Step-by-step explanation:

Answer:

21 savage

Step-by-step explanation:

Answer:

6b+1/4

Step-by-step explanation:

4b+2b+1/4

6b+1/4

cant do anything else because only the b can be added.

Answer:

x° + x° + 10° + x° + 15° + x° + 20° + x° + 25° + x° + 30°

= 6x° + (10 + 15 + 20 + 25 + 30)°

= 6x° + 100

0 = 6x + 100

6x = 100

X = 100/6

X = 16.66

Answer:

The system of equations has no solution.

Step-by-step explanation:

Let the following system of linear equations:

[tex]x +2\cdot y + z = 6[/tex] (1)

[tex]2\cdot x + y + 2\cdot z = 6[/tex] (2)

[tex]x + y + z = 5[/tex] (3)

Since the quantity of equations and variables are the same, there is only one solution to this system. First, we clear [tex]x[/tex] in (3):

[tex]x = 5 - y - z[/tex]

And make substitution both in (1) and (2):

[tex](5-y-z) +2\cdot y + z = 6[/tex]

[tex]2\cdot (5-y-z)+y+2\cdot z = 6[/tex]

[tex]y = 1[/tex] (4)

[tex]y = 4[/tex] (5)

Which lead to a contradiction, since [tex]4\ne 5[/tex]. Therefore, the system of linear equations has no solution.

Answer:

18500

Step-by-step explanation:

Percent decrease:

\text{Multiply by }(1-r)=(1-0.09)=(0.91)

Multiply by (1−r)=(1−0.09)=(0.91)

2005: \color{green}{24500}

2005:24500

2006: \color{green}{24500} (0.91) = \color{blue}{22295}

2006:24500(0.91)=22295

2007: \color{blue}{22295} (0.91) = \color{red}{20288.45}

2007:22295(0.91)=20288.45

2008: \color{red}{20288.45} (0.91) = \color{orange}{18462.49}

2008:20288.45(0.91)=18462.49

\text{Car value in 2008:}

Car value in 2008:

\$18500

$18500