Answer:
x = 7.5
Step-by-step explanation:
Answer:
X is 7.5
Step-by-step explanation:
36 ÷ by 3 = 12
12 - 4.5 =7.5
Therefore X is 7.5.
Hope this Helps!
Ellen is opening. Cookie shop eat a local middle school . She randomly surgery's students to determine The types of cookies they would buy at the cookie shop the results of the surveys are below
Answer:
The only statement that is NOT true is option A.
- If 160 students buy a cookie, approximately 18 students would buy a sugar cookie.
Step-by-step explanation:
Complete Question
Ellen is opening. Cookie shop eat a local middle school . She randomly surgery’s students to determine The types of cookies they would buy at the cookie shop the results of the surveys are below based on the survey. Which statement is not true?
Cookie Survey
Type of Cookie | Number of Students
Chocolate Chip | 25
Oatmeal Raisins | 15
Peanut Butter | 22
Sugar | 18
A) If 160 students buy a cookie, approximately 18 students would buy a sugar cookie.
B) 22½% of the students surveyed would buy a sugar cookie.
C) If 240 students were to purchase a cookie from the store, approximately 66 students will purchase a peanut butter cookie.
D) Half of the students prefer chocolate chips or oatmeal raisin cookies.
Solution
First of, we obtain the proportion or percentages of students surveyed that buy each type of cookie.
Each of that is the number of students that buy the type of cookie in the sample divided by the Total number of students sampled.
Total number of students sampled = 25 + 15 + 22 + 18 = 80
Type of Cookie | N | proportion | %
Chocolate Chip | 25 | 0.3125 | 31.25%
Oatmeal Raisins | 15 | 0.1875 | 18.75%
Peanut Butter | 22 | 0.2750 | 27.50%
Sugar | 18 | 0.2250 | 22.50%
Now, taking the statements one by one
A) If 160 students buy a cookie, approximately 18 students would buy a sugar cookie.
Proportion of students that buy sugar cookie in the sample = 0.225
Number of students that will buy sugar cookie amongst 160 students = np = 160 × 0.225 = 36 students.
This statement is false, that is, NOT true.
B) 22½% of the students surveyed would buy a sugar cookie.
From the table, 22.5% of the students surveyed bought a sugar cookie. Hence, no matter the number of students, the percentage of students that will buy a sugar cookie will approximately be 22.5%.
This statement is True.
C) If 240 students were to purchase a cookie from the store, approximately 66 students will purchase a peanut butter cookie.
Proportion of students that buy peanut butter cookie in the sample = 0.275
Number of students that will buy peanut butter cookie amongst 240 students = np = 240 × 0.275 = 66 students.
This statement is true.
D) Half of the students prefer chocolate chips or oatmeal raisin cookies.
Proportion of students that buy chocolate chips or oatmeal raisin cookies in the sample = 0.3125 + 0.1875 = 0.50
0.50 is half of the distribution.
Hence, this statement too, is True.
Hope this Helps!!!
Hola ayudenme porfa se trata de progresiones aritmeticas 1Un niño compra figuras para su album; el primer dia 1 figura ; segundo dia,3 figuras;el tercer dia, 5 figuras y asi sucesivamente. Si en total compro 225 figuras ¿Cuantos dias compro figuras?
Answer: 16 days.
Step-by-step explanation:
I will answer this in English.
An aritmetic series works in the next way.
if the first therm is A.
Then the second therm is A + r
the third therm is A + r + r
and so on.
Where A is the initial value and r is a constant.
Here the first term is A = 1
The second term is 3, we can find the value of r as:
3 - 1 = r = 2
Then our series is:
Kₙ₊₁ = Kₙ + 2
where K₁ = 1
We know that in total he bought 225 figures, then we have the sumation:
∑Kₙ
and we want to find the value of n.
the sum of the first n terms is:
Sn = (n/2)*(K₁ + Kₙ)
where Kₙ = 1 + n*2 and K₁ = 1
so we must solve:
225 = (n/2)*(1 + 1 + n*2) = n + n^2
So we must solve the quadratic equation:
n^2 + n - 225 = 0
the solutions are:
[tex]n = \frac{-1 + -\sqrt{1^2 + 4*225} }{2} = \frac{-1 +-30}{2}[/tex]
So we have two solutions:
n = 29/3 = 14-.5
n = -31/2 = -15.5
We must select the positive solution, because n can be only positive, and we should round it to the next whole number, that is 16.
So he bought figures for 16 days.
180/9 x 10^-5
IN SCIENTIFIC NOTATION
Answer:
2*10^-4
Step-by-step explanation:
Answer:
2.0x10^6
Step-by-step explanation:
First, let's change the number in the numerator into scientific notation.
180/ 9.0x 10^-5 = 1.80x10^2/ 9.0x10^-5
Start by collecting the significance and exponents.
1.80X10^2/ 9.0x10^-5 = 1.80/ 9.0x 10^2/10^-5
Then divide each term separately. When dividing exponents with the same base, subtract their power.
=0.20x10^2-(-5) =0.20x 10^7
To write the answer correctly in scientific notation, the first number needs to be between 1 and 10. In this case, we need to move the decimal one position to the right without changing the value of our answer.
We can use the fact that 0.20 is the same as 2.0/10, or 2.0x 10^-1
=2.0x10^-1x 10^7
=2.0x 10^-1+7
=2.0x 10^6
Dominique is building a flower box for her yard. The outline of the box is shown in the diagram. If she wants to cover the box with
burlap to protect it, how much burlap does she need to buy?
Highlight
00:03:11
Hide Tools
A)
6 sq. feet
B)
8 sq feet
C)
10 sq. feet
D)
12 sq. feet
Answer:
I promise it's C.) 10 sq. feet. It is not B.)
Answer:
Its C, I took the USA step prep
Find the period. Principal = 9300 =9300equals, 9300 rupees Annual rate of interest = 13 % =13%equals, 13, percent Total amount = 17 , 763 =17,763equals, 17, comma, 763 rupees Period = =equals years
Answer:
7 years
Step-by-step explanation:
Given:
Principal P = 9300
Interest rate r = 13% = 0.13
Final amount F = 17,763
Since the problem does not state that it is a compounded interest, we will assume this is a simple interest case.
The formula for simple interest is;
Interest I = Prt .....1
t = period
Final amount F = P + I
I = F-P
Substituting into equation 1;
(F-P) = Prt
t = (F-P)/Pr
Substituting the given values;
t = (17,763 - 9300)/(9300×0.13)
t = 7 years
Period = 7 years
Please answer. Will mark the brainliest and will give 20 points.
The two-way table of column relative frequencies below shows data on whether or not a person has internet access and their preferred method to communicate with friends.
Based on the data, which of the following statements must be true?
(Choice A)
A person who prefers to communicate with friends in person is more likely to have no internet access than to have internet access.
(Choice B)
A person with internet access is more likely than a person without internet access to prefer the wired telephone to communicate with their friends.
(Choice C)
A person with internet access is more likely than a person without internet access to prefer text messaging to communicate with their friends.
(Choice D)
More people without internet access prefer using social networking than people with internet access.
Answer: it is C
Step-by-step explanation:
Answer:
C
Step-by-step explanation:
I got it right. pls give brainliest have a good day !
What is the volume of a cube with a side length of 5 cm?
A) 10 cm3
B) 15 cm3
C) 25 cm3
D) 125 cm3
Answer:
D. 125 cm³
Step-by-step explanation:
Volume is how much space an object takes up.
The volume of a cube is denoted by: V = s³, where s is the side length of the cube. Here, we see that s = 5, so plug this into the formula:
V = s³
V = 5³ = 5 * 5 * 5 = 125
The answer is thus D.
Answer:
[tex]125 {cm}^{3} [/tex]
Step-by-step explanation:
[tex]volume = b \times h \times l \\ = 5 \times 5 \times 5 \\ = 125 {cm}^{3} [/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
Which is a solution to (x − 2)(x + 10) = 13?
Answer:
3
Step-by-step explanation:
3-2=1
3+10=13
1x13=13
Question 4(Multiple Choice Worth 1 points) (03.05 MC) What does > −2 indicate about the position of and −2 on the number line? is located on the right of −2 is located on the left of −2 is located on the right of 0 and −2 is located on the left of 0 is located on the left of 0 and −2 is located on the right of 0
Corrected Question
What does [tex]-\dfrac35>-2[/tex] indicate about the position of [tex]-\dfrac35[/tex] and −2 on the number line?
Options
negative 3 over 5 is located on the right of −2
negative 3 over 5 is located on the left of −2
negative 3 over 5 is located on the right of 0 and −2 is located on the left of 0
negative 3 over 5 is located on the left of 0 and −2 is located on the right of 0
Answer:
(A)negative 3 over 5 is located on the right of −2
Step-by-step explanation:
Given the inequality: [tex]-\dfrac35>-2[/tex]
On a number line, numbers are written from the left to the right in ascending order.
Therefore:
Any number y to the right of another number x is greater than x, y>x.Any number a to the left of another number x is less than b, a<b.Negative numbers are to the left of 0.In the given inequality [tex]-\dfrac35>-2[/tex] , both numbers are negative and are therefore to the left of 0.
However, since [tex]-\dfrac35[/tex] is greater than -2, it is located to the right of -2 .
The correct option is A.
Answer:
Step-by-step explana
Study the following frequency distribution table.
xi 15 17 20 30 10 + f
fi 4 4 6 5 6
If the mean of the data is 18.8, then the value of f is
(A) 4 (B) 3 (C) 2 (D) 1
PLS ANSWER THIS AS QUICKLY AS POSSIBLE
Answer:
Option C is correct.
f = 2
Step-by-step explanation:
The mean is the sum of variables divided by the number of variables
Mean = (Σfx)/(Σf)
xi | 15 | 17 | 20 | 30 | 10 + f
fi | 4 | 4 | 6 | 5 | 6
Σfx = (15×4) + (17×4) + (20×6) + (30×5) + [(10+f)×6] = 60 + 68 + 120 + 150 + 60 + 6f = (458 + 6f)
Σf = 4 + 4 + 6 + 5 + 6 = 25
Mean = 18.8
18.8 = (458+6f) ÷ 25
458 + 6f = 25 × 18.8 = 470
6f = 470 - 458 = 12
f = (12/6) = 2
Hope this Helps!!!
Find the volume of the juice box.
Answer:
105.3 inches^3
Step-by-step explanation:
you have to multiply 6.5*4.5*4*.9 to get 105.3
The radius of a circle is 5 m. Find its area in terms of .
Answer:
78.5 m²
Step-by-step explanation:
Area formula: πr²
Plug it in: (3.14)(5m)²
Answer: 78.5 m²
Ellen mixed \dfrac1{4}\text{ kg} 4 1 kgstart fraction, 1, divided by, 4, end fraction, start text, space, k, g, end text of flour with \dfrac{2}{9}\text{ kg} 9 2 kgstart fraction, 2, divided by, 9, end fraction, start text, space, k, g, end text of sugar.
Question:
Ellen mixed ¼ kg of flour with ²/9 kg of sugar.
Answer:
See Explanation
Step-by-step explanation:
The question is incomplete. However, question that are likely to be asked are.
- What's the weight of the total mixture in grams
- What percentage of the mixture is sugar
To solve (1);
We simply add both weights together
But first, the units must be converted to grams.
1kg = 1000 grams
So,
¼kg = ¼ * 1000 g
¼kg = 250 g
²/9kg = ²/9 * 1000
²/9kg = 2000/9
²/9kg = 222.2 g
Add these results
Total = 250g + 222.2g
Total = 472 g
The result can be written in different ways
1. 472 grams
2. About 500 grams
If converted back to kg
472 grams = 472/1000 kg
472 grams = 0.472 kg.
So, the result can also be written as
3. 0.472 kg
4. About 0.5kg (½kg)
To solve (2)
What percentage of the mixture is sugar
To do this, we simply divide the size of sugar by the total size of the mixture.
From (1) above
Sugar = 250g
Total = 472g
Percentage of sugar = 250/472
Percentage of sugar = 0.5297
Percentage of sugar = 0.5297 * 100%
Percentage of sugar = 52.97%
Answer:
1/2
Step-by-step explanation:
I did it and it was write right hope it helps
A girl and a puppy are 850 feet apart when they start running towards each other. The girl runs at a speed of 8 feet per second, and the puppy runs at a speed of 7 feet per second. How soon will they meet?
Answer:
time taken = 850/(8+7) =56.6 second
Answer:
The answer is: 56 2/3
Step-by-step explanation:
First add up the amount of feet they run all together every second. 8+7=15 feet/second. You have to find the total amount of seconds for them to meet so you divide. 850 divided 15 equals 56 2/3 seconds. That's your answer.
P is a point on the terminal side of θ in standard position. Find the exact value of the six trigonometric functions for θ.
18. P(-3, 2)
19. P(4, -2)
20. P(0, -6)
21. P(-3, -4)
Answer:
see below
Step-by-step explanation:
When you're doing a bunch of these, it is helpful to make a table with reminders as to how they're calculated. That table is shown below.
__
In the attached, we have used ...
r² = x² +y²
√20 = 2√5
√36 = 6
√25 = 5
and 1/(2√5) = √5/10. (The division is outside the radical.)
Zachary and Heather are measuring the growth of a plant for a science experiment. They stopped recording the growth after week 6. Which of the following could be a reasonable estimate for the value of the plant height at week 10?
35 inches
47 inches
50 inches
43 inches
will mark brainliest
Answer:
43, it raises by 4 each time. good luck!
Step-by-step explanation:
What is the solution for -3x -24 < -36?
Answer:
x > 4
Step-by-step explanation:
-3x -24 < -36
Add 24 to each side
-3x -24+24 < -36+24
-3x< -12
Divide each side by -3, remembering to flip the inequality
-3x/-3 >-12/-3
x > 4
Answer:
x > 4
Step-by-step explanation:
Given equation,
→ -3x - 24 < -36
Now the value of x will be,
→ -3x - 24 < -36
→ -3x < -36 + 24
→ -3x < -12
→ x > -12/-3
→ x > 12/3
→ [ x > 4 ]
Hence, the answer is x > 4.
Find the solution to the system of equations.
You can use the interactive graph below to find the solution
(–2x+2y =–4
( 3x + 3y = -18
X =
y=
An emergency plumber charges $65 as a call-out fee plus an additional $75 per hour. He arrives at a house at 9:30 am and works to repair a water tank. If the total repair bill is $195.25 at what time was the repair completed?
Answer:
Around 11:15 am
Step-by-step explanation:
Let h represents the number of hours the plumber works
Since the plumber charges $65 fee plus $75 per hour, the bill can be calculated by:
→ bill = 65 + 75h
Since the bill is $195.25
→ 195.25 = 65 + 75h
→ 75h = 130.25
→ h = 1.74
1.74 implies that the plumber worked almost 1 hour and 45 minutes. Since the plumber started at 9:30, the repair was completed around 11:15 am.
Carlos keeps track of his math scores of tests. His scores on his math tests are
the following: 100, 88, 50, 50, 90, 70, 80 What is the:
Median?
Mode?
Mean?
Range?
Answer:
Median: 75
Mode: 50
Mean: ≈ 75.4
Range: 50
Step-by-step explanation:
Median:Arrange the numbers in order:
50, 50, 70, 80, 88, 90, 100
There is no exact middle number.
[tex]70 + 80 = 150\\150/2 = 75[/tex]
The median is about 75.
Mode:50, 50, 70, 80, 88, 90, 100
"50" appears the most.
The mode is 50.
Mean:Add all numbers in the set.
[tex]100+88+50+50+90+70+80 = 528[/tex]
Divide by the number of values in the set.
[tex]528/7 = 75.4285714286[/tex]
75.4285714286 ≈ 75.4
The mean is about 75.4.
Range:Subtract the smallest number in the data set from the largest number in the data set.
[tex]100-50=50[/tex]
The range is 50.
Brainilest appreciated.
HELP PLSS ANYONE? I'VE TO SUBMIT ASAP
x =14
Answer:
[tex] m\angle ABC = 51°[/tex]
Step-by-step explanation:
11. By inscribed angle theorem:
[tex] 83°=\frac{1}{2} \times (9x+40)°\\\\
83°\times 2 = (9x+40)°\\
166°= (9x+40)°\\
166 = 9x + 40\\
166 - 40 = 9x\\
126 = 9x\\\\
x = \frac{126}{9}\\\\
\huge \red {\boxed {x = 14}} [/tex]
12. Again by inscribed angle theorem:
[tex] (5x+11)°=\frac{1}{2} \times (16x-26)°\\\\
2\times (5x+11)°= (16x-26)°\\
(10x+22)°= (16x-26)°\\
10x + 22 = 16x - 26\\
22+26 = 16x - 10x\\
48= 6x\\\\
x = \frac{48}{6}\\\\
\huge \purple{\boxed {x = 8}}\\
m\angle ABC = (5x+11)°\\
m\angle ABC = (5\times 8+11)°\\
m\angle ABC = (40+11)°\\
\huge \orange{\boxed {m\angle ABC = 51°}} \\
[/tex]
Picture attachment below
Answer:
$4.50 for 9 cans
Step-by-step explanation:
A circle has a diameter that measures
8 inches. What is the area of the circle to the nearest tenth? Use 3.14 for pi.
Answer:
50.24inches
Step-by-step explanation:
Your diameter is 8 inches so divide that by two to get a radius of 4 multiply 4 by itself and multiply that (16) by pi.(it gives you 50.24)
In this equation what is the
Answer:
multiplication i think? correct me if im wrong:)
Step-by-step explanation:
bye.
The answer is [ C. Multiply ]
The inverse operation of division is multiplication and vice versa.
The inverse operation of subtraction is addition and vice versa.
Solve for x.
x/6.8 = 5
~Multiply 6.8 to both sides
x/6.8 * 6.8 = 5 * 6.8
~Simplify
x = 34
Best of Luck!
Find the measures of a positive angle and a negative angle that are coterminal with each given angle. Part 1
6. θ = 75°
7. θ = 720°
Answer:
6. -285°, 435°
7. -360°, 360°
Step-by-step explanation:
6. θ = 75°
75-360 = -285°
75+360 = 435°
7. θ = 720°
720 - 1080 = -360°
720 - 360 = 360°
Answer:
answer is positive
Step-by-step explanation:
Help me please I think you have to find the area
Answer:
I got B) ; 54m2
Step-by-step explanation:
the above diagram is a trapezium.
the area is gotten by; 1/2 (a+b)h
a = shortest side.
b = the longer side that is directly opposite to (a).
h = height.
1/2(3 + 9)9
1/2 by 12 by 9
to get 54
someone help? 25 points
Answer:
A- isosceles
B- equilateral
C- scalene
Answer:
Triangle A
Isosceles
Triangle B
Equilateral
Triangle C
Scalene
Hope this helped
Hi so i am writing a movie but i need ideas
Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9
Answer:
-6 and 2
Step-by-step explanation:
About how many times greater is the volume of the cylinder than the volume of the cone?
Your answer is 3 times larger.
The volume of any cone is 1/3 the volume of the cylinder that could be formed around that cone, therefore the volume of any cylinder is 3 times larger than the volume of the cone that could fit inside.
We know this is true because the equation for the volume of a cone is (1/3) πr²h, and the equation for the volume of a cylinder is πr²h
I hope this helps!
