Answer:
number of students that play an instrument= 61
Step-by-step explanation:
Giving the following information:
20% of the students play an instrument
Number fo students= 305
To calculate the number of students that play an instrument, we need to use the following formula:
number of students that play an instrument= total students*proportion of students
number of students that play an instrument= 305*0.2
number of students that play an instrument= 61
what is 20 percent of 305
61
just did a test with that question got it right
can anyone please help me
Write the quadratic function in vertex form.
y = x^2 + 4x + 7
y = (x - 2)^2 + 3
y = (x - 2)^2-3
y = (x + 2)^2 - 3
y =(x + 2)^2 + 3
Answer:
The answer is
y =(x + 2)^2 + 3
Step-by-step explanation:
(x+2)(x+2)+3
x²+2x+2x+4+3
x²+4x+7
help please i WILL GIVE BRAINLIST :)
Answer:
yup
Step-by-step explanation:
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Jerry and Jo are making brownies for the bake sale.
Each pan of brownies will be cut into 18 rows with 12 brownies per row.
They plan to make 12 pans of brownies.
Choose Yes or No to tell if the equation shows the number of brownies they will make.
(12 x 18) ~ 12 = b
18 * (2 x 12) = b
18 x 12 = b
12 x (12 * 18) = b
Answer:
Yes
12 * (12 * 18) = b will give the total number of brownies to be made
Step-by-step explanation:
Here, we want to select which of the equations will give the number of brownies to be made
The total number of brownies is b
For each pan, we have 18 rows , with 12 per row
So the total number of brownies per pan is 12 * 18
Since they are making 12, the total number of brownies b will be;
12 * (12 * 18) = b
A friend of yours wants to teach a dance class after school. She needs to rent a dance studio to teach the class, and the cost of rent is $400 for 12 weeks. The class will meet each week and your friend will charge each student the same fee for the whole course. Your friend's profit depends on how many students enroll in the course and how much she charges each student.
If your friend charges each student D dollars for the course, define a function, p, that relates the number of students who take the dance course, n, to the profit, p(n).
Answer:
maybe the answer is 157 ok
What is the slope-intercept form of the equation of the line with a slope of 3 and y-intercept at the origin (0,0)?
Answer:
Step-by-step explanation:
y=3x
Your salary is $65,788. If you work fifty 40-hour weeks in a year, what is your hourly wage?
A construction crew built 514 miles of road in 412 days. What is the unit rate in miles per day? Write your answer as a fraction or a mixed number in simplest form.
Answer:
[tex]R=\dfrac{257}{206}\ \text{miles/day}[/tex]
Step-by-step explanation:
Given that,
Distance, d = 514 miles
Time, t = 412 days
We need to find the unit rate in miles per day. Its rate is given calculated by dividing distance and time as follows :
[tex]R=\dfrac{514\ \text{miles}}{412\ \text{days}}\\\\R=\dfrac{257}{206}\ \text{miles/day}[/tex]
So, the unit rate is [tex]\dfrac{257}{206}\ \text{miles/day}[/tex].
Select all expressions that are equivalent to 5% of 200.
А 1/20 X 200
B 1/5 x 200
С 1/2 • 200
D 10
E 5
9. Horizontally arranged elements in a matrix is called *
O Columns
O ROWS
O Determinants
O Transpose
Answer:
Rows...............
Step-by-step explanation:
Hope this helps ☺
Cylinder capacity 4.25 L, cylinder diameter of 13 what is the height of the cylinder?
Answer:
Step-by-step explanation:
Capacity of cylinder =4.25L
So volume of the cylinder=4250
πr^2h=4250
3.14×6.5×6.5×h=4250
132.665h=4250
h=4250/132.665
h=32.035
1/4(z +3z)+ 7=−z + 1 please help with this ive been stuck
(3x^2-7x)-(x^2+3x-9)
(-2-I)^2
Help !!!!!!!!
Answer:
The answer is 9.
Step-by-step explanation:
(-2-1)^2
(-3)^2
A negative times a negative equals a positive.
When you square something you multiply it by itself.
(-3)^2
=9
Simplify (32)2
A) 9
B) 18
C) 27
D) 81
Answer:
D) 81
Step-by-step explanation:
I think cause you would do 3 by the second power so that would be 9 then 9 the the second power would be 81 so yeah good luck
Answer:
D is your correct answer
Step-by-step explanation:
Well first things first if we want to simplify with a base and an exponent we can use product of two powers with like bases.
-------------------------
Example/model of product of two powers with like bases:
x^m + n (adding the exponents)
-------------------------
If we add those two exponents you get 3^4. Then if you do 3 x 3 x 3 x 3 = ?
What do you get? You get 81. Hope this helpss! Good luck!!
The measures of the angles of a triangle are shown in the figure below. Find the
measure of the smallest angle.
(4x)
(x+18)
112°
Answer:
Submit Answer
9514 1404 393
Answer:
28°
Step-by-step explanation:
The sum of angles in a triangle is 180°, so we have ...
(4x) +(x +18) +112 = 180
5x = 50 . . . . . . . subtract 130
x = 10
Then the two acute angles are ...
(4x)° = (4·10)° = 40°
(x+18)° = (10+18)° = 28°
The measure of the smallest angle is 28°.
QUICK ANSWER PLEASE
In triangle NLM, point S is the centroid, QS = (3x – 5) cm, and NS = (4x) cm.
Triangle N L M has centroid S. Lines are drawn from each point to the midpoint of the opposite side to form line segments N Q, L R, and M P. The length of line segment N S is 4 x and the length of line segment S Q is 3 x minus 5.
What is NS?
5 cm
10 cm
20 cm
30 cm
The area of a rectangular pool is 8342 m .
If the width of the pool is 86 m, what is its length?
Answer:
97 meters
Step-by-step explanation:
The area of a rectangle is its length multiplied by its width. Substitute the known values into this equation and solve for the length, l:
a = lw
8342 = 86l
l = 97
You have $18 to buy peppers. Peppers cost $1.50 each. Write and solve an inequality that represents the numbers of peppers you can buy.
Answer:
27
Step-by-step explanation:
you 1.50x18
Divide and simplify 7 3/5 divided by 4 easy question (:
Answer:
1 9/10
Step-by-step explanation:
Convert 7 3/5 to improper fraction. Use this rule a/bc
7x5+3
5
4
Simplify 7\times 5 to 35.
Nvm I just give u the answer
Answer:
1.9
Step-by-step explanation:
Which ratios have a unit rate of 4? Choose ALL that apply.
Answer: It’s 2 cups and 1/2 and 2 1/2 and 5/8
Step-by-step explanation:
The ratios have a unit rate of 4 will be 2 ¹/₂ cups: ⁵/₈ cups and 2 cups: ¹/₂ cups. Then the correct options are C and D.
What are ratio and proportion?A ratio is a collection of ordered integers a and b represented as a/b, with b never equaling zero. A proportionate expression is one in which two items are equal.
The ratios are given below.
A) 4 ¹/₃ cups: 3 cups = 1.44
B) ⁷/₈ cups: 3 ¹/₂ cups = 0.25
C) 2 ¹/₂ cups: ⁵/₈ cups = 4
D) 2 cups: ¹/₂ cups = 4
E) ¹/₈ cups: 1 cup = 0.125
F) 4 cups: 1 ¹/₄ cups = 3.2
The ratios have a unit rate of 4 will be 2 ¹/₂ cups: ⁵/₈ cups and 2 cups: ¹/₂ cups. Then the correct options are C and D.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ5
I need help with this 9/2 divided by 2/9
Answer:
20.25
Step-by-step explanation:
decimal form- 20.25
fraction form- 81/4 simplified-20 1/4
How do you turn 0.06 into a frac
Answer:
6/100
Step-by-step explanation
Answer:
First write 0.06 as 0.06/1. Them mutliply by 100 so 0.06 times 100/ 1 times 100 this equals 6/100. Simplfy and you will fet 3/50 te anwer
Step-by-step explanation:
Plz Mark Brainliest Thanks
CAN ANYBODY HELP ME WITH THIS? btw not really yelling
The scale factor of a room for a scale drawing is 2.3. The actual length of a wall in the room is 46 feet and the actual width of the room is 69 feet. What is the area of the scale drawing?
I need help. Thank you.
Answer:
The teacher sets up 7 work stations in each of the 2 classrooms.
Step-by-step explanation:
1. Find the number of work stations in all. We can find the number of work stations by dividing the amount of clay by the amount of clay that will be in each work station. 7/8 is the amount she has and 1/16 is how many that will be in each work station. 7/8 divided by 1/16 is equal to 7/8 * 16/1, and if you cross cancel, you would get 14.
2. Find how many are in each classroom. Since we know that we have 14 workstations in all, and that there are two classrooms, to find the amount in each, you have to divide 14/2. 14/2 = 7
Answer: The teacher sets up 7 work stations in each of the 2 classrooms.
find the coordinates of the circumcenter of the triangle below
I need help of finding the answer does anyone know it
Answer:
less than 3/4 pound of watermelon
Step-by-step explanation:
half of 3/4 is 3/8, which is less than 3/4 clearly
SOMEONE PLEASE HELP ME WITH THIS!!!!
Answer: B) 2(x + 3) - 1
Answer:
I think its answer b
Step-by-step explanation:
in not sure what the question is asking but b is the only answer equal to 2z+5. Im not sure if thats right though. check it on m a t h way.
Find the slope of a line parallel to a line containing points (3,-5) and(1,7)
Answer:
Required slope = - 6
Step-by-step explanation:
Parallel lines have same slope.
(x₁ , y₁) = (3 , -5) & (x₂ , y₂) = (1, 7)
[tex]Slope = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]
[tex]= \frac{7 - [-5]}{1-3}\\\\=\frac{7+5}{1-3}\\\\=\frac{12}{-2}\\\\= -6[/tex]
Slope of the a line parallel to a line = -6
Rewrite the product as a power:
[tex](-a)^{3} b^{3}[/tex]
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[tex] { - a}^{3} . {b}^{3} = ( { - a \times b})^{3} = ( { - ab})^{3} \\ [/tex]
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