Jace recorded the grade-level and instrument of everyone in the middle school School of Rock below.
Seventh Grade Students
Instrument # of Students
Guitar 11
Bass 14
Drums 11
Keyboard 14
Eighth Grade Students
Instrument # of Students
Guitar 13
Bass 13
Drums 8
Keyboard 3
Based on these results, express the probability that a seventh grader chosen at random will play an instrument other than bass as a percent to the nearest whole number.
Answers
Related Questions
Points D and E are midpoints of the sides of triangle ABC. The perimeter of the triangle is 48 units. Triangle A B C is shown. Point D is the midpoint of side A B and point E is the midpoint of side B C. The lengths of A D and D B are 3 t, the lengths of B E and E C are 4 t, and the length of A C is 7 t + 6. What is the value of t
Answers
9514 1404 393
Answer:
t = 2 units
Step-by-step explanation:
The perimeter is the sum of the side lengths:
AD +DB +BE +EC +AC = 48 = 3t +3t +4t +4t +7t +6
42 = 21t . . . . . . subtract 6 and simplify
42/21 = t = 2 . . . . . . divide by the coefficient of t
Solve the following expression when
k= 12
(4k + 2) = 10
Answers
Answer:
5
Step-by-step explanation:
(4k + 2) ÷ 10
(4(12) + 2) ÷ 10
(48 + 2) ÷ 10
(50) ÷ 10
= 5
Hope this helps!! <3
The solution to the expression (4k + 2 ) ÷ 10 when k = 12 is 5
From the given expression, we are to solve for (4k + 2) ÷ 10
When
k = 12What we are going to do is that we will replace k with 12 wherever we see (k) in the expression given
∴
= (4k + 2 ) ÷ 10
= (4(12) + 2 ) ÷ 10
= (48 + 2) ÷ 10
= (50) ÷ 10
= 5
Learn more about mathematical expressions here:
https://brainly.com/question/20596193?referrer=searchResults
-4|8-5n|=19
-4|8-5n|=-19
I need the work shown for me pls so if anyone can help
Answers
Step-by-step explanation:
-4|8-5n|=19
-4/-4|8-5n|=19/-4
|8-5n|=4.75
5n=4.75-8
5n=-3.25
5n/5=-3.25/5
n=-0.65
if it is wrong sory
A.It has point symmetry.
B.It has rotational symmetry with an angle of rotation of 120°.
C.It has reflectional symmetry with eight lines of symmetry.
D.It has no reflectional symmetry.
Answers
Answer:
c. It has a reflectional symmetry with 5 lines of symmetry
Step-by-step explanation:
Answer:
Step-by-step explanation:
(B). It has rotational symmetry with an angle of rotation of 120°.
a van is traveling 64 7/8 miles per hour. an airplane is traveling 5 6/7 times faster. about how fast is the airplane traveling? could u please help?
Answers
Answer:
it will be 736 speed faster than
Determine the gradient of line AC
Answers
Answer:
This formula can also be written as \(y - {y}_{1} = m\left(x - {x}_{1}\right)\). The standard form of the straight line equation is \(y = mx + c\) where \(m\) is the gradient and \(c\) is the \(y\)-intercept.
you are solving an equation with a variable on each side. does the side on which you choose to isolate the variable affect the solution? why might you choose one side over the other?
Answers
Answer:
Does the side on which you choose to isolate the variable affect the solution?
No, because at the end you get an equation with a variable on one side only.Why might you choose one side over the other?
To simplify or minimize the number of operations you need. Moving part of the terms from one side to another adds at least one extra operation and it may also bring some complications.perimeter is 21cm Length is 7.5cm and the Breadth is not given
Answers
Answer:
The answer is 3cm
Please give branliest!
Step-by-step explanation:
(S1×2)+(S2×2)=21cm
(S1+S2)×2=21cm
S1+S2=21÷2
7.5+S2=10.5
S2=10.5-7.5
S2=3
Breadth=3cm
Step-by-step explanation:
p=2(l+b)
21=2(7.5+b)
21=15+2b
21-15=2b
6=2b
6/2=b
b=3
Simplify each expression -(20+d)
Answers
Answer:
-20 -d
Step-by-step explanation:
-(20+d)
Distribute he minus sign
-20 -d
If 1 pounds = 4 cups then 2 cups = ?
PLEASE HELP I AM STUCK
Answers
Answer:
1/2 pound
Step-by-step explanation:
Answer:
2 cups is equal to 0.5 pounds.
Step-by-step explanation:
4 divided by 2 is 2 and 1 pound divided by 2 is 0.5.
You have 3 fair 6-sided dice. You repeatedly roll all 3 at once, until all 3 of them show thesame number. What is the probability that you have to tryat leasttwice
Answers
Answer:
35/36 or about 0.972
Step-by-step explanation:
The probability of rolling the same number
first die 6/6
second die 1/6
third die 1/6
1(1/6)(1/6) = 1/36
so there is a 35/36 chance that you will not get it done on the first roll and need to attempt at least one more time.
- (x^2 - 3x + 2) - x(x - 4)
Answers
Answer:
[tex] - (x^{2} - 3x + 2) - x(x - 4) \\ = ( - x^{2} + 3x - 2) + ( - x ^{2} + 4x) \\ = - 2 {x}^{2} + 7x - 2[/tex]
I hope I helped you^_^
Answer:
[tex] = - 2 {x}^{2} + 7x - 2[/tex]
Step-by-step explanation:
[tex] - ( {x}^{2} - 3x + 2) - x(x - 4)[/tex]
[tex] - {x}^{2} + 3x - 2 - x(x - 4)[/tex]
[tex] - {x}^{2} + 3x - 2 - {x}^{2} + 4x[/tex]
[tex] - {2x}^{2} + 3x - 2 + 4x[/tex]
[tex] \boxed{\green{ = - 2 {x}^{2} + 7x - 2}}[/tex]
[tex]stan \: \: Dreamcatcher \\ and \: \: stream \: \: BEcause \\answered \: \: by \: \: a \: \: fellow \: \: InSomnia[/tex]
The area of a rectangle is represented by 9× + 15 and the length of the rectangle is 3. What is the width of the rectangle
Answers
Answer:
Step-by-step explanation:
l*b = 9x+15
3*b=9x+15
b=9x+15/3
b=3x+5 ans
When 1480 is divided into 12 equal parts, the remainder is 4. What is a correct way to write the quotient?
123.4
1234 over 12
123 + 4
1234 over 1480
Answers
Answer:
123.4
Step-by-step explanation:
If a < b, what additional assumptions on a and b will guarantee that a^2 < b^2. Prove your assumption.
Answers
Answer:
An additional assumption is that a is not negative.
Step-by-step explanation:
If a could be negative, then:
(-7)^2 < 3^2 would be false because
49 is not greater than 9
35 POINTS, i dont understand this question!!!! can someone give me a brief yet useful explanation??
Answers
surveying a random sample of 25 students attending a school football game
Don't forget put heart ♥️
solve this equation by completing the square p^2 + 16p - 17 = 0
Answers
Answer: p=1
Step-by-step explanation:
[tex]p^{2}+16p-17=0\\p^{2}+16p=17\\1^{2}+16(1)=17\\1+16=17\\p=1[/tex]
(p-1)(p+16)
Also, here's the cross method in completing the square that I tried in the file attachment. I haven't done this in a while, so this may not be neat.
the raidan measure of an angle is equal to the ratio of the legnth of its intercepted arc to the radius
A.True
B.False
Answers
Answer:
True.
Step-by-step explanation:
As long as the vertex of the angle is at the center of curvature of the intercepted arc.
13. There are about 4 • 10% known species of beetles.
The number of known species of caddis flies is
about 104. How many times more species of beetles
are there than caddis flies?
Answers
Answer:
40
Step-by-step explanation:
Find the value of x
Answers
Answer:
[tex]sum \: of \: exterir \: anges \: for \: a \: polygon = 360 \\ 5x - 5 + x + 4x - 5 + 4x + 20 = 360 \\ x \: terms \: togather \\ 5x + x + 4x + 4x - 5 - 5 + 20 = 360 \\ 14x + 10 = 360 \\ 14x = 360 - 10 \\ 14x = 350 \\ x = \frac{350}{14} = 25 \\ x = 25 \\ thank \: you[/tex]
Answer:
SUM OF EXTERIOR ANGLES=360
Step-by-step explanation:
5x-5+4x-5+4x+20+x=360
14x+10=360
14x=350
x=350/14
x=25
If 3^x=243^4, then what is x?
Answers
Answer:
x=20
Step-by-step explanation:
3^x=243^4
3^x=(3^5)^4
3^x =3^20
x=20
17. Given f(x) = 3x - 1, find f(2)
Answers
Answer:
5
Step-by-step explanation:
you have to replace 2 were there's x in the function
f(2)=3(2)-1
=6-1
=5
I hope this helps
the number of seats in a movie theater
Answers
A rectangles length is 6 units greater than its width. Write an equation expressing the rectangles area, A, as a function of W
Answers
Answer:
A = W² + 6W
Step-by-step explanation:
The width is W.
The length is 6 units greater than the width, so the length is W + 6.
The area is the product of the length and width.
A = (W + 6)W
A = W² + 6W
what two numbers when multiplied makes 6 but when added equals -10
Answers
What is x and the unknown angle? May I also get a brief explanation of how to do it?
Answers
Answer:
149+(13x+5)=180
154+13x=180
13x=26
x=2
Answer:
see explanation
Step-by-step explanation:
The 2 angles are adjacent on a straight line and sum to 180° , then
149 + 13x + 5 = 180 , that is
154 + 13x = 180 ( subtract 154 from both sides )
13x = 26 ( divide both sides by 13 )
x = 2
Then
unknown angle = 13x + 5 = 13(2) + 5 = 26 + 5 = 31°
Simplify (6+5x)+(7x+3)
Answers
Answer: 12x + 9
Step-by-step explanation:
Given
(6 + 5x) + (7x + 3)
Put like terms together
=5x + 7x + 6 + 3
Combine like terms
=[tex]\boxed {12x+9}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
What can you do if a decimal product has final zeros to the right of the decimal point
Answers
Answer:
place the decimal point in the product so that the number of decimal places in product is the sum of decilal places in the factors. keep all zeros in the product when you place the decimal point. you can drop the zeros on the right once the decimal point has been placed in the product.
James is selling a bike on an internet auction website. he pays £1.45 insertion fee, £2.85 for an enhanced advert and a selling fee of £1.95 when the bike is sold. what are his total selling fees to the nearest pound (£)
Answers
Hello :D
£1.45 + £2.85 = £4.30
£4.30 + £1.95 = £6.25
£6.25 to the nearest pound = £6.00
Answer: Selling fees = £6 (rounded to the nearest pound)
Step-by-step explanation:
Given information
Insertion fee = £1.45
Enhanced advert = £2.85
Selling fee = £1.95
Given expression deducted from the given information
Total = insertion + enhanced advert + selling
Substitute values into the expression
Total = (1.45) + (2.85) + (1.95)
Simplify by addition
Total = 4.3 + (1.95)
Total = 6.25
[tex]\boxed{Total=6}[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Determine whether the statement is true or false.
Every real number is an irrational number.
Answers
Answer:
Firstly irrational number are any real number that cannot be expressed as the quotient of two integers . For example there is no number among integers and fractions that equals the square root of 2 .
Hope I helped