In a classroom, 4 students are wearing red shirts, 11 students are wearing blue shirts, and 10 students are wearing black shirts. What percentage of students are wearing black shirts?
Answer:
40%
Step-by-step explanation:
10÷25=.4
.4= 40%
hope this helped
*PLEASE ANSWER!!*
Denise and her family go out to dinner at a restaurant. The bill is $100. They leave a 20% tip for the server. How much money do they tip?
a.) $12
b.) $20
c.) $10
What is the value of x?
In my knowledge
x = 24²+7²
= 576+49= 625
x= sqroot of 625
x = 25 (By Pythagoras Theorem)
Hope it helps
Write an equivalent
expression
- 4(5 + 7g)
Rachel loves to read. Her favorite books are Dr Suess. For every 13 books Rachel owns 8 are Dr Suess books.
If Rachel had 32 Dr Suess books, how many books did she have in total?
Answer:
32
Step-by-step explanation:
The graph shows the function f(x)=3^x
What is the value of x when f(x)=9?
A:3
B:1
C:0
D:2
Describe the graph of the equation y = 0. Is the equation a function?
vertical line; yes
horizontal line; yes
vertical line; no
horizontal line; no
Answer: B. horizontal line; yes
Use the slope-intercept form to find the slope and y-intercept.
Slope:
0
y-intercept:
(0,0)
Yes it is a function. It is a horizontal line.
Every point on this line is of the form (x,4) where x can be any number you want. The y coordinate is fixed at 4 and cannot change. Two points on this line are (0,4) and (1,4). The horizontal line goes through 4 on the vertical y axis.
Why is it a function? Because it is impossible to draw a vertical line through more than one point on the graph of y = 4. The graph passes the vertical line test. Put another way, for any x input, there is exactly one y output.
Side Note: y = 4 is the same as y = 0x+4. Note how its in the form y = mx+b
m = 0 is the slope
b = 4 is the y intercept
Step-by-step explanation: A. vertical line; yes
horizontal line; yes
Yes! Horizontal line represents a function y = f(x)
(1):Firstly, lets understand a function. For a function to be defined, we have a set of independent variables(inputs) (Domain), a set of dependent variables (outputs) (Codomain). And a relation between the variables.
(2): Each input in X must be related to exactly one output in Y. Or else it won't represent a function.. like in the following image.. y is a function of x.Because each element ofX has one& only one image in Y
C. vertical line; no
The height (h), in feet, of a balloon is calculated by using the equation h equals 3t + 2 where t is the time,in seconds. What is the height of ballon after 30 seconds?
If 7 less than 4 times a number is two more than that number, what is the result when the number is subtracted from 50?
Answer:
4x-7=x+2
3x=9
x=3
3-50=-47
Step-by-step explanation:
At a dance, 25% dresses up in a superhero costume, 32% as a scary character, 10% as an entertainer, 15% as a children's movie character, and 16% did not dress up at all. If a total of 250 students attended the dance and 15% of the scary character students were girls, how many boys dressed up as a scary character?
Answer:
68 boys
Step-by-step explanation:
32% of 250 = 80
of 80 scary characters, 15% were girls
80 x .15 = 12 (girls)
80 - 12 = 68 (boys)
Find the circumference of each circle. Use your calculator's value of p. Round your answer to the nearest tenth.
will be marked.
Step-by-step explanation:
2*22/7*5=31.42857143
please answer this question below 8th grade math?!
Answer:
it b
Step-by-step explanation:
Find the slope of the line that goes through (3,5) and (9,-2).
Answer:
-7/6
Step-by-step explanation:
the slope is change in y/change in x:
-2-5/9-3 = -7/6
Jaden invested $300 into a savings account at Simple Bank. He earns 8% interest. How much will
he have in his account, if he does not deposit anymore, and leaves it in the account for 5 years?
Answer:
400
Step-by-step explanation:
Write the Linear Equation (y=mx+b) from the following table:
Answer:
y=3x+2
Step-by-step explanation:
y2 - y1 / x2 - x1
17-11 / 5-3 = 6/2 = 3
m = 3
17 = 3(5) + b
17 = 15 + b
b = 2
(please correct me if i did this wrong)
Factor the expression.
32b + 12
32b + 12 =
(Factor completely
32b+12
32 and 12 is both divisible by 4 so divide them by 4 and the answers in parentheses
4(8b+3)
What is the value of sin 43° to the nearest ten-thousandth?
Answer:
0.6819
Step-by-step explanation:
The value of sin 43° to the nearest ten-thousandth will be 0.682
Sine functionIn trigonometry, the sine function can be defined as the ratio of the length of the opposite side to that of the hypotenuse in a right-angled triangleThe sine function sin x is one of the basic functions encountered in trigonometryHow to solve this problem?The steps are as follow:
First take calculator and press the sin function buttonAfter entering the sin function button enter the value 43After entering the value 43 press the equal to buttonAnd the answer will be shown on screen will be 0.681999...As in the question stated we have round off to the nearest ten-thousandthSo, the value of sin 43° to the nearest ten-thousandth will be 0.682
Learn more about sine function here:
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3.
The cost of a cell phone is $399. A
newer model costs 15% more.
During a sale, the newer model is
offered at a 30% discount.
Which of the following is closest to the
sale price of the newer model? 3
(a)
$251.16
(b)
$269.10
(c)
$310.96
(d)
$321 20
Answer:
D. 321.20
Step-by-step explanation:
15% more than 399 is 458.85.
30% off of 458.85 is $321.195
What is the value of the expression below?
- 14+ 8-12
Step-by-step explanation:
- 18
please follow and like
A person walks 1/5
mile in 1/15
hour.
The person's speed is ___
miles per hour.
Can someone please help me
(3/4) to the power of 2
Answer: 3/16
Step-by-step explanation: hope this helps :)
Answer:
0.5625
Step-by-step explanation:
Milagro needs to find an expression that represents the shaded area below. Which expression is equivalent to the area of the shaded portion of the rectangle?
Answer: I don’t know sorry
What are some possible reasons for DNA mutations that could occur in a person?
Answer:
Acquired or somatic mutations occur at some time during a person's life and are present only in certain cells, not in every cell in the body. These changes can be caused by environmental factors such as ultraviolet radiation from the sun, or can occur if an error is made as DNA copies itself during cell division.
What is the value of x?
3
10
2y + 4
04
O 6
10 - 2x
08
Answer:
4
Step-by-step explanation:
We know that oppostie sides of a rectange have to be equal
therefore
18=10+2x
solve for x
8=2x
x=4
Answer:
The value of x is 4
Step-by-step explanation:
For a given rectangle
Lenght (l) = 2y = 10
Breadth (b) = 10 + 2x = 18
Here,
2y = 10 ...(1)
10 + 2x = 18 ...(2)
Now, For x
10 + 2x = 18
2x = 18 - 10
2x = 8
x = 8/2
x = 4
Thus, The value of x is 4
-TheUnknownScientist
If ATLY ~ ACHK, find the value of x.
C
T
10
25
H
K
x + 5
L'
4x - 1
Y
IM BEGGING U I CANT FAIL MAN
An air conditioning system salesperson earns a base yearly salary of $38,000 and earns a commission of $500 for every air conditioning system sold. Using your equation from Question 1, how much will the salesperson earn if 22 air conditioning systems are sold in one year? Put the following steps in order.
Answer:
order
500x+38000
500(22)+38000
11000+38000
49000
Step-by-step explanation:
We can write the following equation
38000+500x= salary
where x is the number of air conditioners sold
To get the answer just plug in 22 for x
38000+500(22)=49000
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The steps in order are:
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000 earned.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Yearly salary = $38,000
Commission per sold = $500
Now,
Number of items sold = 22
The y amount earned for selling x items.
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000
Thus,
The steps in order are:
y = 500x + 38,000
y = 500 x 22 + 38,000
y = 11,000 + 38,000
y = 49,000 earned.
Learn more about expressions here:
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Combine like terms to create an equivalent expression.
Make sure to simplify coefficients and constants as well.
-6/5 - 2/3v + 4/15 +1/3v
Bill makes a conjecture that the sum of an odd integer and itself is always an even
integer. Which choice is the best proof of his conjecture?
Answer:
Step-by-step explanation:
What is the following product?
(x StartRoot 7 EndRoot minus 3 StartRoot 8 EndRoot) (x StartRoot 7 EndRoot minus 3 StartRoot 8 EndRoot)
Answer:
b
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
edge 2021