The number of students going on the trip is 60.
Given that, total cost = $4220
Cost per student= $30+$40=$70
Additional cost = $20
We need to find the number of students.
What is an equation?In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.
Let the number of students be x.
Cost paid by students = 4220-20 = 4200
Number of students = cost paid by students/cost per student
x = 4200/70
⇒x= 60
Therefore, the number of students going on the trip is 60.
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The water level of a river was measured each day during a two-week period. The graph
models the linear relationship between the water level of the river in feet and the number of
days the water level was measured.
Water Level of River
28
24
20
16
Water Level (ft)
12
2
12
6 8 10
Number of Days
Which statement best describes the y-intercept of the graph?
F The water level increased by 0.25 ft per day.
G The maximum water level was 19.5 ft.
The initial water level was 16 ft.
3 The water level was measured for 14 days
Answer: G, the initial water level was 16 ft
Step-by-step explanation:
I honestly don’t know lol I just looked up the answer on another app
13. Find the value of x.
Answer:
6x+12+3x-3=180(supplementary angle)
9x+9=180
9(X+1)=180
X+1=20
X=19
7. Solve. Reduce the answer to lowest terms.
8/21 - 14/15
the answer is:
-58/105
i hope this was helpful
Simplify.
9/3x + 4+ 2x
Answer:
5x+4
Step-by-step explanation:
PLEASE DO ALL PARTS FOR BRAINLIEST!! IT'S URGENT! PLEASE HELP!!!!!
Perform these transformations on △DEF.
Reflect △DEF across the x-axis and label the resulting image△D'E'F'.
Rotate △D'E'F' 90° clockwise about the origin and label the resulting image △D''E''F''.
Translate △D''E''F'' according to (x,y)→(x-2,y+2) and label the image △D'''E'''F'''.
Answer:
The answer is below
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
If a point A(x, y) is reflected across the x axis, the new location is at A'(x, -y).
If a point A(x, y) is rotated 90° clockwise about the origin, the new location is at A'(y, -x).
If a point A(x, y) is translated a units left and b units up, the new location is at A'(x-a, y+b).
From the image attached, the location of triangle DEF is D(2, 6), E(2,3) and F(5, 3).
If △DEF is reflected across the x-axis, the resulting image △D'E'F' is at D'(2, -6), E'(2, -3) and F'(5, -3).
If △D'E'F' is rotated 90° clockwise about the origin, the resulting image △D''E''F'' is at D''(-6, -2), E''(-3, -2) and F''(-3, -5).
If △D''E''F'' is translated by (x,y)→(x-2,y+2), the resulting image △D'''E'''F''' is at D'''(-8, 0), E'''(-5, 0) and F'''(-5, -3).
Lung cancer may only be caused by first hand smoke. True False
Answer:
No, it could be caused by seocnd hand smokeing also.
Step-by-step explanation:
Answer:
False.
Step-by-step explanation:
Tobacco use not only affects the person using it but also those around them. Secondhand smoke is the smoke that is exhaled by a smoker or that comes from the burning end of a cigarette, cigar, or pipe. Secondhand smoke contains more than 7,000 chemicals, including hundreds that are toxic and at least 70 that can cause cancer. Breathing in secondhand smoke can lead to a range of health problems, especially in children and non-smoking adults. These can include lung cancer, heart disease, stroke, respiratory infections, and asthma. Additionally, exposure to secondhand smoke during pregnancy can cause low birth weight, premature birth, and sudden infant death syndrome (SIDS). Therefore, it is important to create smoke-free environments to protect the health of everyone, including non-smokers.
janiel tiene cierta edad
Answer: que
Step-by-step explanation:
no se
Answer:
Buena saber :)
Step-by-step explanation:
pls help me solve this
Answer:
x=10
Step-by-step explanation:
Because BC is a mid segment
Answer:
10
Step-by-step explanation:
These are similar triangles, which means that the ratio between 16 to 8 will equal x+10 to x. This could be written out as 16/8 = x+10/x. 16/8 is 2, which means that x+10 is twice the amount of x. We can write this out as 2x = x+10. We can then simplify this and get x = 10
Help me with this please
Answer: A, B, E
Step-by-step explanation:
Because I know this
Simplify the following Expression by combining like terms:
y+ 3x + 4y + 2x + 3y + 3x
Answer:
8x+8y
Step-by-step explanation:
y + 3x + 4y + 2x + 3y +3x
With this we group x with x and y with y and in ascending order so x comes before y
3x+2x+3x
And the y with y
y+4y+3y
Which is;
3x+2x+3x+y+4y+3y
8x+8y
chris spends 35% of his budget on rent for his apartment, Write this percent as a fraction, percent and a decimal. helpp asap
Answer:
Please check the explanation.
Step-by-step explanation:
Given that Chris spends 35% of his budget on rent for his apartment.We need to write 35% as a fraction, percent, and a decimal.
35% as a fraction:
All we need is to divide 35 by 100 as 35 is basically the 35th part of 100 parts.
Thus, 35% as a fraction would be: 35/100
35% as a decimal:
All we need is to divide 35 by 100 and calculate the result such as:
35/100 = 0.35
Thus, 35% as a decimal would be: 0.35
35% as a percent:
35% is already mentioned as a percent.
Thus, 35% as a percent would be: 35%
HELPPPPPPPP 7TH GRADE
Answer: 1 gallon
Step-by-step explanation:
Hi there!
Using the equation (12*18)-(7*3), where 12*18 is the area of the wall, 7*3 is the area of the door not being painted, you are left with 196 square ft. of wall. further dividing 196/200 is 0.98, meaning that Mr. Smith will only need one gallon of paint for his wall.
[(12*18)-(7*3)]/200
(215-21)/200
196/200
0.98
please help its timed
Answer:
A.) f(x) = 45 - 4(x - 1)
Step-by-step explanation:
please help. Multiple choice..
Segment MN has coordinates M(4, -8) and N(6, -3). Segment OP has coordinates O(-5, 9) and P(8, 1). Determine if MN and OP are parallel, perpendicular, or neither. Justify your answer.
A. The segments are parallel because the slopes are the same.
B. The segments are perpendicular because the slopes are opposite reciprocals of each other.
C. The segments are not parallel or perpendicular because the slopes are not the same or opposite reciprocals of each other.
D. The segments are parallel because the slopes are opposite reciprocals of each other.
Solve the following simultaneous equations
y=x^2
y= x+6
The required solution of the given simultaneous equations are x = 2, 3 and y = 3,9.
What are simultaneous equation?In mathematics, a set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Now the given simultaneous equations are,
y = x^2 ...(i)
y = x + 6 .....(ii)
Equating (i) and (ii) we get,
x^2 = x + 6
or, x^2 - x - 6 = 0
Solving we get,
x^2 - 3x - 2x - 6 = 0
⇒ x(x - 3) -2(x - 3) = 0
⇒ (x - 2)(x - 3) = 0
So, x = 2, 3
Putting x = 2, 3 in equation (i) we get,
y = 2^2
⇒ y = 4
and,
y = 3^2
⇒ y = 9
Thus, y = 3,9
Thus the required solution of the given simultaneous equations are x = 2, 3 and y = 3,9.
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Which equation best represents the relationship between x and y in the graph?
Answer:
whats the picture at
Step-by-step explanation:
If A(-2,0)b(6,2) and (5,3) are the verticles of a triangle ABC, find its area
Answer:
the answer its A=h b/2
Step-by-step explanation:
Have this function rule: f(x) = V x – 10
Is x = 1 part of the domain of the function?
Why or why not? Explain completely.
Answer:
yes because the function changes when you do the tunction
Papa John's sold 50 pizzas on Monday. Of the pizzas sold, 35 of them were delivered. What percent were delivered?
Answer:
75%
Step-by-step explanation:
if i'm wrong i'm really sorry-
uh well i did the math and got 70
What is 2/19 as a percentage?
Give your answer rounded to one decimal place.
Answer:
10.5%
Step-by-step explanation:
2/19=.1052... = 10.52% round to 10.5%
Answer:
10.5%
Step-by-step explanation:
2/19=10.52=10.5
whats the answer giving brainliest:)(:..
Answer:
c)
Step-by-step explanation:
The answer is C
What is 1 as a decimal?
2.75
0.4
0.364
0.36
Answer:
None of them is 1 as a decimal. 1 as a decimal is 0.01
Step-by-step explanation:
P.S Can I have brainliest?
Please help how do I do this ??
Please answer this!! I will give you brainlist and 5 stars!
Answer:
The answer is C
Step-by-step explanation:
3 BC = EF
3 AC = DF
please help, i do not understand this
Answer:
I believe,
a = -1
b = 3
c = 1/4
Step-by-step explanation:
As most I know that x term is first , y term is second and the term without any variable is 3rd.
(-1x +3y +1/4).
I hope it's correct.
A movie theater is offering a special summer pass. Passholders pay $15 for the pass and only have to pay $2 per movie the see. The function
Cgives the total cost, in dollars, for a passholder to watch n movies.
What would be the best way to describe the domain of C?
Oa
Ob
Oc
Od
multiples of 2
2-15
All positive integers
All real number six
9514 1404 393
Answer:
All positive integers
Step-by-step explanation:
The domain of the variable in the cost function is the set of values it might reasonably assume. Since we count movies using integers starting at 1, the reasonable domain is ...
All positive integers
__
Additional comment
We know there is an upper limit. That limit is the number of movies offered such that the summer pass price is valid. We suspect it will be less than two or three hundred. For the purpose here, the reasonable choice is "positive integers."
Aaron thinks of two numbers less than 30.
The Highest Common Factor (HCF) of his two numbers is 6.
The Lowest Common Multiple (LCM) of his two numbers is 72.
Write down the two numbers that Aaron is thinking of.
Answer:
18 and 24
Step-by-step explanation:
HCF(18,24) = 6
LCM(18,24) = 72
What is the domain of f(x)=(1/2)^x
Answer:
x is greater than zero c is correct
what is 457.894 to 2 deimal places
Answer:
228.947
Step-by-step explanation:
Answer:
457.894
Step-by-step explanation:
"What is 457.894 rounded to 2 decimal places?" is the same as asking, "What is 457.894 rounded to two decimal points?" or "How to round 457.894 to two decimal places."
The main point is that you want to round 457.894 to two digits or places after the decimal point. Thus, we want to eliminate the last digit in 457.894. To eliminate the last digit in 457.894, we use the following Two Decimal Places Rules to get the answer:
Two Decimal Places Rule #1: If the last digit in 457.894 is less than 5, then remove the last digit.
Two Decimal Places Rule #2: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is less than 9, then remove the last digit and add 1 to the second to the last digit.
Two Decimal Places Rule #3: If the last digit in 457.894 is 5 or more and the second to the last digit in 457.894 is 9, and the third to the last digit is less than 9, then remove the last digit, make the second to last digit 0, and add 1 to the number to the third to the last digit.
Two Decimal Places Rule #4: If the last digit in 457.894 is 5 or more and the second to the last digit is 9, and the third to the last digit is 9, then add 1 to the number on the left side of the decimal point and make the right side of the decimal point 00.
When rounding 457.894 to two decimal places we use Two Decimal Places Rule #1. Therefore, the answer to "What is 457.894 rounded to 2 decimal places?" is:
457.89Use the graph to evaluate the function for the given input
value.
fl-1) =
f(1) =
Answer:
f(-1) = -8
f(1) = -12
Step-by-step explanation:
-1 and 1 are inputs to the function f which is shown on the graph.
The inputs are on the x-axis so when x = -1, the graph shows that the function f at -1 is approximately -8.
When x = 1, the function f is approximately -12.