Answer:
28
Step-by-step explanation:
Let's set the ratio as
7x : 9x
If you add all the states that border an ocean and do not, you will get 48 states (because Alaska and Hawaii are not part of the continental US, as they do not touch the "main" part of the country)
So, we can write this equation.
7x + 9x = 48
Simplify.
16x = 48
Divide both sides by 16.
x = 4
Now, find how many states border an ocean. In our ratio, the number of states that border an ocean was 7x. Substitute x = 4 into 7x
7 * x = 7 * 4 = 28
The number of states that border an ocean is 28.
I hope this helps! Feel free to ask any questions!
15n+24-4(n-3)+6-2n=105
Answer:
n = 7
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
Question: 15n+24-4(n-3)+6-2n=105
Answer: 3 • (3n + 14)
Explanation:
STEP 1: Restate
Equation at the end of step 1
(15n + 24) - 4 • (n - 3)) + 6) - 2n
STEP 2: Pulling out like terms
STEP 3: Pull out like factors :
9n + 42 = 3 • (3n + 14)
Final result :
3 • (3n + 14)
Hope this helps~
Add: look at the picture
Answer:
5 3/4
Step-by-step explanation:
the 3/4 is a fraction
Have a nice day:)
Answer:
5 3/4
Step-by-step explanation:
2 + 2/3 + 3 + 1/12
2+3= 5
2/3 + 1/12 <<-- Find the LCD
8/12 + 1/12 = 9/12 <-- Reduce the fraction
9/12 = 3/4
5 + 3/4 = 5 3/4
Exponential function: f(x) = 5 ∗ [tex]3^{x}[/tex]
1. Make the table of values with at least 5 points.
2. Graph the function
3. Is the function increasing or decreasing?
4. What is the domain and range of the function?
Logarithmic function: g(x) = log3 + 2
1. Make the table of values with at least 5 points.
2. Graph the function
3. Is the function increasing or decreasing?
4. What is the domain and range of the function?
Answer:
See below.
(I only answered the first one b/c the second log function doesn't really make sense, sorry!)
Step-by-step explanation:
1. f(x) = 5 × [tex]3^{x}[/tex]
Plug in 5 points.
x = -2, f(x) = [tex]\frac{5}{9}[/tex]
x = -1, f(x) = [tex]\frac{5}{3}[/tex]
x = 0, f(x) = 5
x = 1, f(x) = 15
x = 2, f(x) = 45
2. Attached below.
3. Increasing
4. Domain: x = all real numbers
Range: f(x) > 0 (because the line never goes below the x-axis)
You are selling lemonade. You find that if you set the price at $2.00 per cup, you sell 14 cups over the
course of a day. You also notice that for every $0.10 you decrease the price by, you sell 3 more cups over
the course of the day. Come up with a linear equation to model this situation.
Step-by-step explanation:
$2.00x-($.10x)=3+x
the x would stand for cups and since you already get 3 more cups in a day than before then you would put 3+x_how many cups you sell. the $2.00 is for how much money each up is. and the -$.10 is subtracting 10 cents for each cup you sell.
I dont know if this is correct but this is how I would make my equation
In a normal distribution, 68% of the data fall within how many standard
deviations of the mean?
A. Two standard deviations
B. One standard deviation
C. It cannot be determined from the given information.
D. Three standard deviations
In a normal distribution of data, 68% of the data fall within one standard deviations of the mean.
What do you mean by normally distributed data?Normally distributed data is the distribution of probability which is symmetric about the mean.
The mean of the data is the average value of the given data.The standard deviation of the data is the half of the difference of the highest value and mean of the data set.According to the empirical rule, also known as 68-95-99.7 rule, the percentage of values that lie within an interval with 68%, 95% and 99.7% of the values lies within one, two or three standard deviations of the mean of the distribution.
[tex]P(\mu - \sigma < X < \mu + \sigma) = 68\%\\P(\mu - 2\sigma < X < \mu + 2\sigma) = 95\%\\P(\mu - 3\sigma < X < \mu + 3\sigma) = 99.7\%[/tex]
Here the mean of distribution of X is [tex]\mu[/tex] and standard deviation from mean of distribution of X is [tex]\sigma[/tex].
Thus, in a normal distribution of data, 68% of the data fall within one standard deviations of the mean.
Learn more about the normally distributed data here;
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What is the value of -91/5 - 10 + 2/5+ 2(14 1/2-7)
Answer:
Exact Form:
−64/5
Decimal Form:
−12.8
Mixed Number Form:
−12 4/5
Step-by-step explanation:
bc I used a calculator
which measurement uses square units
Answer:
Area
Step-by-step explanation:
because
The first week of January it
snowed 12 inches. This week
it snowed 16 inches. How
many inches has it snowed in
all?
Answer:
28 inches
Step-by-step explanation:
the answer is 28 inches
12+16= 28
Number of snow snowed in January = 12 inches
Number of snow snowed this week = 16 inches
Number of snow snowed at all = 12+16
= 28 inches
hence it snowed 28 inches at all
The area of the parallelogram is___ cm2
Answer:
Step-by-step explanation:
Area of parallelogram=base×perpendicular height
Area of para.= 7×14
Area of para.= 98cm²
help me pleeess.need help for math
Answer:
u are math
Step-by-step explanation:
1/2 x 1 2/3 write the answer as a fraction or as a whole or mixed number
Answer:
5/6
Step-by-step explanation:
Can someone help me it’s due tomorrowwwww
Number one is straight angle
number two is obtuse
number three is acute
Number 4 is acute
number 5 is a right angle
number 6 is obtuse
number 7 is right angle
number 8 is obtuse
If 1=3. 2=3. 3=5. 4=4. 5=4. Then, 6=?
Question: If 1=3. 2=3. 3=5. 4=4. 5=4. Then, 6=?
Answer: Like wise, If 1=3.2=3 3=5 4=4 5=4 Than 6=3
Because of six. Six split in two is 3 therefore 6=3
More: 7=5, 8=5, 9=4, 10=3
Hope this helps~~~
The sum or two numbers is 59. the larger number is 15 more than the smaller number. What are the numbers
Answer: 37 and 22
Step-by-step explanation:
x + y = 59
x = 15 + y (substitute x as 15 + y into the first equation)
15 + y + y = 59
2y + 15 = 59
2y = 44
y = 22
substitute y as 22 into one of the equations
x = 15 + 22
x = 37
Last month,Marco's neighbors paid him to take care of their fish when they went on vacation. He spent $5 on his earnings on an after snack and $16 on a new book. Afterward,he had no more then $9 left. How can you beat describe how much Marco's neighbors paid him?
Answer:
$30
Step-by-step explanation:
5+16=21+9=30
Find the distance between P and Q. P(-3, -4), Q(6, -7)
Answer:
Please find attached pdf
Step-by-step explanation:
Step-by-step explanation:
P=(-3,-4)=(X1,Y1)
Q=(6,-7)=(X2,Y2)
Pq=root under( x2-x1)^2+(y2-y1)^2
= root under {6-(-3)}^2+{-7-(-4)}^2
= {6+3}^2+{-7+4}^2
= 9^2+(-3)^2
= 81+9
= 90
= 3root under10 unit.#
Harold and Maude plan to take a cruise together, but they live in separate cities. The cruise departs from Miami, and they each book a flight to arrive in Miami an hour before they need to be on the ship. Their travel planner explains that Harold's flight has an 80% chance of making it on time for him to get o the ship and that Maude's flight has a 90% chance of making it on time. Assume that the event of Harold making it on time is independent of the event of Maude making it on time. What is the probability that at least one of Harold and Maude will make it to the cruise
Answer:
98% probability that at least one of Harold and Maude will make it to the cruise
Step-by-step explanation:
Independent probabilities:
When two events are independent, the probability of the two events happening simultaneously is the multiplication of each probability.
Probability that none makes it to the cruise:
Harold's flight has an 80% chance of making it, so 100 - 80 = 20% probability of missing.
Maude's flight has a 90% chance of making it on time, so 100 - 90 = 10% probability of missing.
Both missing: 0.2*0.1 = 0.02.
2% probability of both missing.
Probability that at least one makes it to the cruise:
Either both miss, or at least one makes it. The sum of the probabilities of these events is 100%. So
2 + p = 100
p = 98%
98% probability that at least one of Harold and Maude will make it to the cruise
Triangle ABC is a right triangle.
.
mZA = 50°
mZB= (32 – 4)
mZC= 90°
What is the value of x?
Hurry!!!! Thanks you
Answer:
mZA=50
mZB=28
mZC=90
value of x is 28 how i got it was 32-4.
Between what two days was the Increase in texting the largest?
Wednesday to Thursday
Friday to Saturday
Sunday to Monday
Thursday to Friday
Help please
Answer:
Thursday to Friday
Step-by-step explanation:
as its the greatest in size and the biggest
Hope it helps XD
Can someone please help me...
Select all the expressions that are equivalent to 12n + 8.
A. 3n + 4 + 3 + 4 + 4n
B. 11n - 4 + 0 + 12
C. 6(6n + 2)
. D. 4(3n+2)
E. 4n + 12-23 + 8n
Answer:
D and B and E
1. Harpreet bought 1 L of mustard oil,
1 L 500 mL of sunflower oil and
250 mL of olive oil. How much oil
did she buy?
what is x? x/9= -5
pls helpppp
Answer:
x= -45
Step-by-step explanation:
x/9=-5
multiply each side by 9
x=-45
Answer:x=−45
Step-by-step explanation:
What expression is equivalent to
2/3 X 5
Answer:
1/3
Step-by-step explanation:
1/3 can be used as an expression that is exactly the same as 2/3x5.
When you multiply 2/3 x 5-
Look here if you need help solving 2/3 X 5: (2/3 x 5/1...is the simplest way to multiply the two, make sure to multiply 2 by 5 and 3 by 1 to get your answer.)(5x2=10...3x1=3)
-you get 10/3. This answer simplified is 1/3. So in the end, 1/3 is a great expression or answer to use as an equivalent to the equation 2/3 x 5.
Hoped this helped! :)
A polynomial is graphed. What could the equation of p?
P(c)=(x+3)(c+1)(2x+1)
Answer:
The answer is B.) p(x)=x(x−2)(2x−7)
Step-by-step explanation:
Khan academy
8b+3=35. when solving for B what is ur first step
Answer:
Put B on the one side, then the numbers go on the other side
A locker door is 13 inches wide by 27 inches tall. A company will use a scale factor of 2.5 to change the dimensions
of the door. What will be the new height of the locker door?
Answer:67.5
Step-by-step explanation:The question asked the HEIGHT. So multiply the scale factor (2.5) and the inches tall (27).
How many copies of 1 twelfth are equivalent to 3 sixths? Help!
Answer:
6/12 is equal to 3/6 ( 6 twelfths is equal to 3 sixths )
Step-by-step explanation:
multiply both sides of 3/6 by 2 to get the same denominator, doing that will get you 6/12
Answer:
6 copies
Step-by-step explanation:
Step 1: Convert 1 twelfth to an expression
1 twelfth is the same thing as 1/12
Step 2: Convert 3 sixths to an expression
3 sixths is the same thing as 3/6
Step 3: Get common denominators
The lowest common denominator between 1/12 and 3/6 is 12
[tex]\frac{1}{12}[/tex] → [tex]\frac{(1 * 1)}{(12 * 1)}[/tex] → [tex]\frac{1}{12}[/tex]
[tex]\frac{3}{6}[/tex] → [tex]\frac{(3 * 2)}{(6*2)}[/tex] → [tex]\frac{6}{12}[/tex]
Step 4: Find the amount of 1/12 there are in 6/12
In order to find out the copies, we need to add 1/12 x amount of times to get 6/12. We find that x is going to be 6. Therefore, there 6 copies.
[tex]\frac{1}{12}+\frac{1}{12}+\frac{1}{12}+\frac{1}{12}+\frac{1}{12}+\frac{1}{12} = \frac{6}{12}[/tex]
Answer: 6 copies
If y = 0.5x + 1 and x = 2, what Is y?
What relationship between the quantities is shown in the table?
The relationship between quantities is +10.
The relationship between quantities is ×11.
The relationship between quantities is – 30.
The relationship between quantities is + 20.
Answer:
x11
Step-by-step explanation:
mega brain IQ
The relationship between the quantities x and y is option B. The relationship between quantities is ×11.
What is Direct Variation?Direct variations are defined as the functions of the form y = kx, where k is a constant.
Here when y increases, x increases and if y decreases, x also decreases.
Given values of x are 1, 2, 3 and 4.
Given values of y are 11, 22, 33 and 44.
We have to find the relationship between x and y.
Let y = f(x).
f(1) = 11, f(2) = 22, f(3) = 33 and f(4) = 44
Clearly we can see that,
f(x) = 11x, which is a direct variation.
When x = 1, f(1) = 1 × 11 = 11
When x = 2, f(2) = 2 × 11 = 22
When x = 3, f(3) = 3 × 11 = 33
When x = 4, f(4) = 4 × 11 = 44
So the relationship is y = x × 11
Hence the relationship between quantities is ×11.
Learn more about Direct Relationships here :
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Your question is incomplete. The complete question is as given below.
Use the table to find the relationship between the two quantities. A 2-column table with 4 rows. Column 1 is labeled x with entries 1, 2, 3, 4. Column 2 is labeled y with entries 11, 22, 33, 44. What relationship between the quantities is shown in the table?
The relationship between quantities is +10.
The relationship between quantities is ×11.
The relationship between quantities is –30.
The relationship between quantities is +20.