John bought 15 cookies and ate 3 of them. He ate % of the cookies. (Make sure to enter the answer using numbers only. Do not enter special characters such as the percent symbol.)
Answer:
20%
Step-by-step explanation:
Divide 3 by 15 to get 1/5. If you divide 1 by 5, you will get a decimal answer of 0.2. To convert a decimal to a percent, you must multiply the decimal by 100, which basically means to move the decimal place to the right twice. You will then get the product and final answer of 20%.
Look at this graph:
у
100
90
80
70
60
50
40
30
20
10
х
0
10
20
30
40
50
60
70 80 90 100
What is the slope?
Answer: pretty sure it's 20
Step-by-step explanation:
Can someone help me please on #6 and #8 please.
Answer: yo if you look up math equation calculator and type that equation in it would solve the problem step by stem.
Step-by-step explanation: i hope this helps :D
Answer:
Number 6 is 3, Iḿ pretty sure if not sorry I tried my best
Step-by-step explanation:
On his lunch break, Calvin purchases a burger and a drink. The total order is $8.50, of which $1.08 is tax. How much was Calvin's meal before tax?
Equation:
Answer:
Calvin's meal before tax = $7.42
Step-by-step explanation[tex] \bf : [/tex]
Cost of total order after tax = $8.50
Tax = $1.08
Cost of total order before tax = Cost of total order after tax - Tax
= $8.50 - $1.08
= $7.42
Find the value of log100,000
Answer:
Step-by-step explanation:
5
To find the quotient 2/5 divided 1/4,
A. Multiply 5/2 by 4
B. Multiply 2/5 by 1/4
C. Multiply 5/2 by 4
D. Multiply 5/2 by 4
HELP ME PLEASEEEE 20 POINTS AND BRAINLY HAAAALP
Answer:
None of the choices are correct.
Step-by-step explanation:
To divide a fraction by another fraction, multiply the first fraction by the reciprocal of the second fraction.
2/5 divided by 1/4 = 2/5 times 4/1 = 2/5 times 4
Correct answer: Multiply 2/5 by 4
Answer: None of the answers are correct.
Answer:
None
Step-by-step explanation:
Which statement best explains whether the table represents a linear or nonlinear function?
Input Output
(x) (y)
−2 7
−5 4
−8 1
−11 −2
A It is a linear function because there is a constant rate of change in both the input and output values.
B It is a nonlinear function because there is a constant rate of change in both the input and output values.
C It is a linear function because the input values are decreasing.
D It is a nonlinear function because the input values are increasing.
Answer:
b
Step-by-step explanation:
After the data was recorded in the dot plot, another response was found for a participant who watches 30 hours of television each week. How will this additional data point affect the mean number of hours of television watched each week? OA The effect on the mean number of hours cannot be determined. OB. The mean number of hours will remain the same. O c. The mean number of hours will decrease. OD. The mean number of hours will increase. please help
Answer:
I think its A
Step-by-step explanation:
...
Answer:
the answer is D I hope it helps you
A mystery element has 18 protons. Which one of the following statements is true about the element?
Answer:
My guess would be B
Step-by-step explanation:
Helium, neon, argon, krypton, xenon, and radon are also noble gases, in order of density. These are termed noble gases as they're so magnificent that, in general, they do not react with something.
The number of valence electrons determines the number of elements in a set.The number of outer electrons decides the number of components in a period.The electrical configuration of both the element is 2,8,8.Their electron energy count is 8, indicating that it belongs to Group 8/O.Its electrons shell count is three, indicating it is in period (row) 3 Noble gases are elements in the Group 8/O family.Therefore, the answer is "Its chemical is categorized as a noble gas that belongs to row 3 of the periodic table".
Learn more:
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A random sample of hybrid vehicle fuel consumptions has a sample mean of x¯=53.2 mpg and sample standard deviation of s=4.8 mpg. Use the Empirical Rule to estimate the percentage of hybrid vehicle fuel consumptions that are less than 43.6 mpg. Round your answer to the nearest tenth.
Answer:
2.5%
Step-by-step explanation:
Since the mean is 53.2, a fuel consumption of 43.6 mpg is 53.2−43.6=9.6 mpg less than the mean, which is 2 standard deviations.
By the Empirical Rule, we know that about 95% of the data lies within 2 standard deviations of the mean. Therefore, 100%−95%=5% of the data lie more than 2 standard deviations away from the mean.
Since the distribution of hybrid vehicle fuel consumptions is symmetric, about half of the remaining 5% will lie to either extreme. So about 2.5% of fuel consumptions are less than 43.6 mpg.
The normal distribution is a symmetric probability distribution about the mean. The percentage of hybrid vehicle fuel consumption that is less than 43.6 mpg is 2.5%.
What is Normal Distribution?The normal distribution, also known as the Gaussian distribution, is a symmetric probability distribution about the mean, indicating that data near the mean occur more frequently than data distant from the mean. The normal distribution will show as a bell curve on a graph.
Given that the mean is 53.2, while the standard deviation is 4.8 mpg. Therefore, Accoding to the emperical rule, we can write the values as,
μ+3σ = 67.6
μ+2σ = 62.8
μ+σ = 58
μ = 53.2
μ-σ = 48.4
μ-2σ = 43.6
μ-3σ = 38.8
Therefore, The percentage of hybrid vehicle fuel consumption that is less than 43.6 mpg is,
Percentage = (0.15 + 2.35)% = 2.5%
Hence, The percentage of hybrid vehicle fuel consumption that is less than 43.6 mpg is 2.5%.
Learn more about Normal Distribution:
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james cut three square lasagnas so that each piece was 1/5 of lasagna how many pieces did James cut the lasagnas into
Answer:
The answer is 15. Each one is 5 pieces and there are 3 of them. so 5 x 3 = 15
Step-by-step explanation:
Answer:
15 pieces
Step-by-step explanation:
3*5= 15
In Exercise 5.21, we learned that a Rasmussen Reports survey of 1,000 US
adults found that 42% believe raising the minimum wage will help the economy. Construct a 99% confidence interval for the true proportion of US adults who believe this.
can somebody please help me omg i’m so dumb
Answer:
A
Step-by-step explanation:
Find the y-intercept of −2x + 4y = 8.
Answer: (0,2)
The y-int is 2
Answer:
the y-intercept is 2
A flying disc in the shape of a circle has a circumference of 8 inches. What is the radius of the flying disc.
Answer:
A.
Step-by-step explanation:
Recall that circumference is given by:
[tex]C=2\pi r[/tex]
We know that the circumference is 8π inches. Thus, we can substitute 8π for C:
[tex]8\pi =2\pi r[/tex]
To solve for r, the radius, we can divide both sides by 2π. Hence:
[tex]\displaystyle r = \frac{8\pi}{2\pi}=4[/tex]
Therefore, the radius is four inches.
Our answer is A.
A woman weighed 160 pounds before dieting. After dieting she weighed 120 pounds. What percent of her weight did she lose?
160-120= 40
She lost 40 pounds
25% of 160 is 40
Percentage=160 x 25/100 =40
So she lost %25 of her weight (good job lol)
26. State the quadrant in which the point (-3,2) lies.
A. Quadrant
C. Quadrant III
B. Quadrant II
D. Quadrant IV
Answer:
B. Quadrant II
Use this:
Quadrant 1 (+,+)
Quadrant 2 (-,+)
Quadrant 3 (-,-)
Quadrant 4 (+,-)
CAN YOU PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ HELP (40 points)
The perimeter of a rectangle is 54 inches. Its length is 22 inches. Write and solve an equation to determine its width?
2 times the width + 2 times the length = perimeter
Answer:15 cm2
Step-by-step explanation:
Find the slope and y-intercept of the line that is graphed on the coordinate grid below.
Answer: 1
Step-by-step explanation:
Cuz the x: rise: 1 and run = 1.
1/1= 1
Y: also same rise: 1 and run : 1
1/1 =1
Charlie knows that 3 blocks are needed to make a tower that is 0.5 foot high.
How many blocks will be needed to make a tower that is 4 feet high?
Answer:
24 blocks will be needed to make the tower that is 4 feet high
Step-by-step explanation:
Let us use the ratio method to solve the question
∵ Charlie knows that 3 blocks are needed to make a tower that is
0.5 foot high
∵ He needs to make a tower that is 4 feet high
→ By using the ratio method
→ Blocks : height (ft)
→ 3 : 0.5
→ x : 4
→ By using the cross multiplication
∵ x × 0.5 = 3 × 4
∴ 0.5x = 12
→ Divide both sides by 0.5 to find x
∵ [tex]\frac{0.5x}{0.5}[/tex] = [tex]\frac{12}{0.5}[/tex]
∴ x = 24
∵ x represents the number of blocks
∴ 24 blocks will be needed to make the tower that is 4 feet high
4 of 10
Colin invests £1100 into his bank account. He receives 5% per year simple interest. How much
will Colin have after 6 years? Give your answer to the nearest penny where appropriate.
Answer:
1430
Step-by-step explanation:
1100×(0.05×6)+1100=1430
Someone help with all of them, I need the ones I did checked to see if they are right, so please help with all! I’ll mark brainliest if you give a small explanation:)
Answer:
1. y= 6x-2
2. y= 2/3x+5
3. y= -5x+0
4. y= 0x-1
5. y= -1x+4
Explanation: Used slope-intercept form which y=mx+b. For #1 I made it 6x-2 because 2 is negative so therefore your y-intercept will be you really didn't need an addition sign. If you need anything else let me know.
i need help please on this math
Answer:
a
Step-by-step explanation:
Answer:
The answer is A
Step-by-step explanation:
If you put in a calculator 4/5 and then 64/80 you get the same decimal meaning that they have the same ratio.
Write 23 between two consecutive multiples of 8. tell me the truth
4. [-12 Points)
DETAILS
HARMATHAP12 12.4.006.
Cost, revenue, and profit are in dollars and x is the number of units.
If the marginal cost for producing a product is MC = 84 - 4e -0.01x, with a fixed cost of $6,200, find the total cost function.
C(x) =
Find the cost of producing 40 units to the nearest dollar)
$
Need Help?
Read it
Answer:
800
Step-by-step explanation:
What is the image of the point (-8,7)(−8,7) after a rotation of 90^ counterclockwise about the origin?
Answer:
(−7,−8)
Step-by-step explanation:
what is the APPROXIMATE area of a circle with a diameter of 6.2
A.9.7 square inches
B.19.5 square inches
C.30.2 square inches
D.120.8 square inches
Answer:
k-2654 + %%12 a4 Q
Step-by-step explanation:
2323-hnbcn
e3+*
Kuel+12
78278663=h*3
Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola. (Round your answers to the nearest hundredth.)
Complete question is;
Find the dimensions of the rectangle of largest area that has its base on the x-axis and its other two vertices above the x-axis and lying on the parabola. (Round your answers to the nearest hundredth.) y = 6 - x²
Answer:
height = 4 and base = 2√2
Step-by-step explanation:
Area of a rectangle is given by;
A = base(b) × height(h)
To start off, we will first have to consider half of the rectangle.
Due to the fact that it is bounded by a parabola which is symmetric over the y-axis, it means that the rectangle will have the same area on the right and left hand sides.
So if we maximize the area of the first quadrant, it means that we are also maximizing the area of the entire rectangle.
Now, since we are dealing with the base and other 2 vertices on the x-axis, it means that the base(b) of this half rectangle will be x.
The height of this rectangle is the y coordinate of the corner that is directly above the x coordinate, which is also on the rectangle.
Therefore, the coordinates of the upper corner will be (x, y), or (x, 6 - x²). Thus our half base is x and full height is 6 - x². Area will be;
A = x(6 - x²)
A = 6x - x³
We will maximize this area by finding the derivative and equating to zero.
Thus;
A' = 6 - 3x²
At A' = 0,we have;
6 - 3x² = 0
3x² = 6
x² = 6/3
x² = 2
x = √2
Thus, from y = 6 - x², we have;
y = 6 - (√2)²
y = 6 - 2
y = 4
Since x is half base, it means our full width is 2x = 2 × √2 = 2√2
So, height = 4 and base = 2√2
Point Q' is the image of Q(-7,-6) under the translation (x, y) + (x+12, y + 8).
What are the coordinates of Q'?
Answer: ( 5, 2 )
Step-by-step explanation:
If the original image is Q ( -7, -6 ) and you are looking for Q' ( A translated version of the original image )
If the translation is ( x, y ) --> ( x + 12, y + 8 )
If coordinates are ( x , y ) and the original image is ( - 7, -6 )
Then that means:
x = -7
y = -6
Use the original coordinates you have and add them with the translation given to you
( - 7 + 12 ) and ( -6 + 8 )
The coordinates of Q' is ( 5, 2 )
Hope this helps!!