Answer:
B.) 90
Step-by-step explanation:
Since the ratio is 3:8, the fraction would look something like the following.:
[tex]\frac{3}{8} =\frac{?}{240}[/tex]
We know that there are 240 band members in this scenario. What do you multiply 8 by to get 240? 30.
[tex]\frac{3*30}{8*30} =\frac{90}{240}[/tex]
To solve the problem, we set up a proportion, 3/8 = x/240. Solving for 'x', we find that 90 out of 240 band members would prefer listening to jazz music, so the correct answer is B (90).
Explanation:This problem concerns proportions. In the survey, it is stated that 3 out of 8 band members preferred listening to jazz. To find out how many out of 240 would prefer jazz, we set up and solve a proportion. Our proportion is 3/8 = x/240, where 'x' is the number of band members we need to find.
To solve for 'x', we cross-multiply 3*240 = 8x. This gives 720 = 8x. Then divide by 8, and we get x = 90. So, 90 out of 240 band members would prefer listening to jazz music.
Therefore, option B (90) is correct.
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Maria drops a hammer from an apartment that is 30 meters above the ground. The
height of the hammer in meters, h, after t seconds is modeled by the function
h(t) = -t - 2t + 30. Find the approximate number of seconds it will take for the
hammer to hit the ground. Round your answer to the nearest whole number.
A.0
B.5
C.10
D.30
Answer:
C. 10 s.
Step-by-step explanation:
When the hammer reaches the ground the height is 0 m, so:
-t - 2t + 30 = 0
-3t = -30
t = -30/-3
= 10 seconds.
can someone help me to find the area?
Answer:
the answer is 23.14 if you use pi and is 23.13 if you use 3.14
Step-by-step explanation:
Answer:
23.14 squared meters or 13.5π squared meters
Step-by-step explanation:
Solve for X, rounding to the nearest hundredth.
25x = 6
Answer: 0.24
Step-by-step explanation: You need to solve and get x by itself, so you would divide 25 on both sides of the equal sign. This would give you x=6/25 or 0.24
A store is giving out cards labeled 1 through 10 when customers enter the store. If the card is an even number, you get a 10% discount on your purchase that day. If the card is an odd number greater than 6, you get a 40% discount. Otherwise, you get a 20% discount. The table shows the results of 400 customers. What is the relative frequency for each discount? Use pencil and paper. If the manager of the store wants approximately half of the customers to receive the 20% discount, does this seem like an appropriate method? Explain.
Answer:
Step-by-step explanation:
The answer was :0.496
HURRY PLEASE!!!!!!!!!!! A graph shows the horizontal axis numbered 1 to 5 and the vertical axis numbered 1 to 5. Points and a line show an upward trend. Which is most likely the correlation coefficient for the set of data shown? –0.65 –0.19 0.19 0.75
The correct answer is option B) –0.19.
What does a correlation coefficient mean?
A correlation coefficient is a statistical measure of the degree to which changes to the value of one variable predict changes to the value of another. In positively correlated variables, the value increases or decreases in tandem.
What is a perfect correlation?
A relationship between two variables, x, and y, in which the change in the value of one variable is exactly proportional to the change in the value of the other. That is, knowing the value of one variable exactly predicts the value of the other variable (i.e., rxy = 1.0).
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Answer:
c
Step-by-step explanation:
Two lines going the exact same way that will never intersect are?
A.Triangles
B.Vertical Lines
C.Angles
D.Parallel Lines
HELP PLZZ
Answer:
These lines are parallel!
Step-by-step explanation:
So D, parallel lines :)
evaluate the expression for q=8
7q
Answer:
56
Step-by-step explanation:
7q
Let q = 8
7*8
56
plzzzzzzzzzzzz help quick
An advertising agency is hired by a local car dealership to determine the most popular SUV model among past customers of the dealership. The agency decides to use a systematic random sampling method.
Which of the following describes the method the agency can use?
Answer:B
by-step explanation:I did the quiz
if a box of 10 organic capri sun drinks costs $13.92, what is the unit rate? (who ever has right answer first gets brainlest!)
Answer: Unit rate for capri sun drinks is 1.39
Step-by-step explanation: The unit rate is the Constant of proportionality so you would have to find the cost of one product or the worth so I divided 13.92 by 10 to find the unit rate and estimated to the nearest hundredths because money does not go out to the hundredths.
Hope I helped out <3
-Carrie
Solver for x, solver similar triangles(Advance)
Answer:
x=3
Step-by-step explanation:
its a right triangle
Answer:
The answer is 3. X= 3 because it's a right angle.
Step-by-step explanation:
hope it helps
There is a chick-fil-a exactly 7 miles due west of berkmar middle school. There is also a wal-Mart 5 miles due north of Berkmar middle school. How far is the chick fil a from the Walmart? Leave your answer in its simplest radical form.
Answer:
8.60
Step-by-step explanation:
7 squared+ 5 squared= C squared
49+25=C squared
74=C squared
You then just square 74 and get 8.60 when rounded
100% correct, teacher corrected my answer, I had the same question today
Answer:
8.6
Step-by-step explanation:
i answered this question on a test .
Subtract (7x – 3) – (5x-6).
O A. 2x+9
O B. 2x–9
O c. 2x-3
O D. 2x+3
Answer:
2x+3
Step-by-step explanation:
simplify the expression. (6^2)^4
Answer:
(2^4•3^2)
Step-by-step explanation:
Step 1 :
1.1 6 = 2•3
(6)2 = (2•3)2 = 2^2 • 3^2
Step 2 :
2.1 2^2 multiplied by 2^2 = 2(2 + 2) = 2^4
Final result :
(2^4•3^2)
Answer:6^8
Step-by-step explanation:
A line is drawn through (-7, 11) and (8, –9). The equation
y - 11 = - 4(x + 7) is written to represent the line. Which
equations also represent the line? Check all that apply.
3y = - 4x + 40
4x + y = 21
4x + 3y = 5
-4x + 3y = 17
The options A and C represent the same line as the given equation.
A: 3y = - 4x + 40
C: 4x + 3y = 5
To verify which equations represent the same line as the given equation y - 11 = -4 (x + 7), we can first convert the given equation into slope-intercept form y = mx + b, where m is the slope and b is the y-intercept.
Given equation:
y - 11 = -4 (x + 7)
Expanding and rearranging:
y - 11 = -4x - 28
y = -4x - 28 + 11
y = -4x - 17
Now, let's compare this equation with the options:
A. 3y = -4x + 40
To convert it to slope-intercept form:
y = [tex]-\frac{4}{3}x + \frac{40}{3}[/tex]
B. 4x + y = 21
To convert it to slope-intercept form:
y = -4x + 21
C. 4x + 3y = 5
To convert it to slope-intercept form:
3y = -4x + 5
y = [tex]-\frac{4}{3}x + \frac{5}{3}[/tex]
D. -4x + 3y = 17
To convert it to slope-intercept form:
3y = 4x + 17
y = [tex]\frac{4}{3}x + \frac{17}{3}[/tex]
Comparing all the equations with the original equation y = -4x - 17, we find that options A and C have the same slope-intercept form as the original equation.
The question is:
A line is drawn through (-7, 11) and (8, –9). The equation y - 11 = - 4(x + 7) is written to represent the line. Which equations also represent the line? Check all that apply.
A. 3y = - 4x + 40
B. 4x + y = 21
C. 4x + 3y = 5
D. -4x + 3y = 17
The only equation that represents the same line as the given equation y - 11 = - 4(x + 7) is -4x + 3y = 17, as it has the same slope and y-intercept when simplified.
To determine which equations also represent the line through the points (-7, 11) and (8, -9), we must ensure they have the same slope and y-intercept as the given line equation y - 11 = - 4(x + 7). First, we simplify the given equation to the slope-intercept form (y = mx + b):
y = -4x - 28 + 11
y = -4x - 17
The slope (m) is -4, and the y-intercept (b) is -17. Now, let's compare the other equations:
3y = - 4x + 40
y = - 4/3x + 40/3Slope: -4/3 (doesn't match)Y-intercept: 40/3 (doesn't match)4x + y = 21
y = -4x + 21Slope: -4 (matches)Y-intercept: 21 (doesn't match)4x + 3y = 5
3y = -4x + 5y = -4/3x + 5/3Slope: -4/3 (doesn't match)Y-intercept: 5/3 (doesn't match)-4x + 3y = 17
3y = 4x + 17y = 4/3x + 17/3Slope: 4/3 (matches)Y-intercept: 17/3 (matches after converting the fraction)The only equation that has both the slope and y-intercept identical to the given line's equation after simplification is -4x + 3y = 17.
Plot √2 and √3 on the number line.
Which statements are true? Check all that apply.
StartRoot 2 EndRoot < 2
StartRoot 2 EndRoot < StartRoot 3 EndRoot
StartRoot 2 EndRoot > 1.5
StartRoot 3 EndRoot < 3
StartRoot 2 EndRoot is about 0.5 less than StartRoot 3 EndRoot.
StartRoot 3 EndRoot is about 0.3 greater than StartRoot 2 EndRoot.
Answer:
The statements (1), (2), (4) and (6) are true.
Step-by-step explanation:
Consider the diagram below for the number line.
The first statement is: [tex]\sqrt{2}<2[/tex]From the number line it is clear that the above statement is true.
The second statement is: [tex]\sqrt{2}<\sqrt{3}[/tex]From the number line it is clear that the above statement is true.
The third statement is: [tex]\sqrt{2}>1.5[/tex]The value of √2 is 1.414. This value is less than 1.5.
So, the above statement is false.
The fourth statement is: [tex]\sqrt{3}<3[/tex]From the number line it is clear that the above statement is true.
The fifth statement is: [tex]\sqrt{2}=\sqrt{3}-0.5[/tex]The value of √3 is 1.732. The difference between √2 and √3 is, 0.318.
Thus, the above statement is false.
The sixth statement is: [tex]\sqrt{3}=\sqrt{2}+0.3[/tex]The value of √3 is 1.732. The difference between √2 and √3 is, 0.318.
Implying, √3 = √2 + 0.318.
⇒√3 = √2 + 0.3
Thus, the above statement is true.
1,2,4,6 are the correct options.
Find the unit rate.
200 words in 4 min
A: 50 words per minute
B: 40 words per min
C: 30 words per min
Answer:
A 50 words per minute
Step-by-step explanation:
200 words/ 4 minutes= 50 words per minute
NEED GRAPH HELP PART 1 AND 2
Answer:
1/2
Step-by-step explanation:
Please help! I will mark you as brainlinest!
Answer:
A is 29 miles and B is 18 miles
Step-by-step explanation:
Set up 2 equations involving A and B and solve simultaneously, that is
5A + 2B = 181 → (1)
2A + 3B = 112 → (2)
Multiply (1) by 3 and (2) by - 2 to eliminate B
15A + 6B = 543 → (3)
- 4A - 6B = - 224 → (4)
Add (3) and (4) term by term to eliminate B
(15A - 4A) + (6B - 6B) = 543 - 224, that is
11A = 319 ( divide both sides by 11 )
A = 29
Substitute A = 29 into either of the 2 equations and solve for B
Substituting into (1)
5(29) + 2B = 181
145 + 2B = 181 ( subtract 145 from both sides )
2B = 36 ( divide both sides by 2 )
B = 18
Thus
Route A is 29 miles long and Route B is 18 miles long.
Answer: for the answer above me give em the crown he deserves it
Step-by-step explanation:
A circle with radius 9 has a sector with a central angle of 120°.
What is the area of the sector?
120º is 1/3 of a complete revolution of 360º. So the area of this sector should be 1/3 the area of the complete circle.
A circle with radius 9 has area 9^2 π = 81π.
So the sector has area 81π/3.
Put another way: The area A of a circular sector and its central angle θ (in degrees) occur in the same ratio as the area of the entire circle with radius r according to
A / θ º = (π r ^2) / 360º
==> A = π/360 θ r ^2
In this case, r = 9 and θ = 120º, so
A = π/360 * 120 * 81 = 81π/3
Please help sorry if it’s blurry
Answer:
a
Step-by-step explanation:
compare 0.02 to 0.020
Answer:
They are the same.
Step-by-step explanation:Does not matter how many zeros you add it will be the same value.
0.02 to 0.020 both are the same it does not matter how many zeros you add it will be the same value.
What is a fraction?A fraction represents a part of a number or any number of equal parts.
Expanding into fractions 0.02 to 0.020, add zeros
2/100 and 2/100
They both are the same it does not matter how many zeros you add it will be the same value.
Learn more about fractions;
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Lines a and b are parallel. What is the value of x?
1) 15
2) 16
3) 56
4) 64
Answer:
2) 16
Step-by-step explanation:
180 - 124 = 56
180 - 56 - 60 = 64
64 ÷ 4 = 16
x = 16
Answer:
yes it is B: 6
Step-by-step explanation:
hope this helps! have a nice day
add or subtract (m^2-m-4)+(m+5)
---------------------------------------------------------
(m^2-m-4)+(m+5)
Remove parentheses:
m^2-m-4 + m+5
Group like terms:
m^2-m+m-4+5
Add similar elements:
m^2-4+5
Add/subtract the numbers:
m^2+1
Your Answer Is m^2+1
plz mark me as brainliest if this helped :)
Mikayal spent 3/8 of her savings at the store. She spent $60. How much money was in her savings before she went to the store ?
Answer:
225
Step-by-step explanation:
60 divided by 3/8 is 225
Final answer:
Mikayla spent 3/8 of her savings which was $60, so by setting up a proportion and solving it, we find that she had $160 in her savings before she went to the store.
Explanation:
Mikayla spent 3/8 of her savings which was $60. To find out how much money she had before going to the store, we can use a simple proportion. We know that the part Mikayla spent ($60) corresponds to 3/8 of her total savings. To find the whole, we set up a proportion:
3/8 = $60/Total Savings
Now, we will solve for the 'Total Savings' by multiplying both sides of the equation by the reciprocal of 3/8, which is 8/3:
Total Savings = $60 × (8/3)
Total Savings = $60 × 8 ÷ 3
Total Savings = $480 ÷ 3
Total Savings = $160
Therefore, Mikayla had $160 in her savings before she went to the store.
Hurry to help me!! Someone keeps deleting my questions for no reason and its not from a quiz!!
Answer: C and D
They are the closest to 0, so c=-1 and d=1.
Which numbers are solutions of the inequality? Choose all that apply.
Answer:
It's a d e gg g g g g g g g g g g g g
You are playing a board game and your playing piece
begins the game at START. You roll a single number
cube numbered 1 to 6 to find out how many spaces
you can move.
What are the possible outcomes of your first roll?
Which steps are needed to solve this equation? . b + 6 = 21 Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b. Subtract 6 from the left side and add 6 to the right side of the equation. The answer is b = 27. Check the solution by substituting 27 for b. Add 6 to both sides of the equation. The answer is b = 27. Check the solution by substituting 27 for b. Add 6 to the left side and subtract 6 from the right side of the equation. The answer is b = 15. Check the solution by substituting 15 for b.
Answer:
Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b
Step-by-step explanation:
b+6 =21
Subtract 6 from both sides
b+6-6 = 21-6
b = 15
Check
15+6 = 21
21=21
Answer:
First one:
Subtract 6 from both sides of the equation. The answer is b = 15. Check the solution by substituting 15 for b.
Step-by-step explanation:
b + 6 = 21
b + 6 - 6 = 21 - 6
b = 15
Help me! Mathematics, quick, I'm on Time Limit!
Thank you all very much!
A rectangular prism has a length of 7 m, a height of 5 m, and a volume of 140 m3. What is the width?
A prism has a length of 7 meters, width of w, and height of 5 meters.
Which steps are correct? Check all that apply.
Substitute the known values into the formula:
140 = 7(w)(5).
Substitute the known values into the formula:
7 = 140(w)(5).
Substitute the known values into the formula:
5 = 7(w)(140).
Solve for the unknown: w = 4 m.
Solve for the unknown: w = 7 m.
Solve for the unknown: w = 2 m.
Answer:
A & D
Step-by-step explanation:
Answer:
A and D
The other person is correct