Answer: 3 times a number can be written as 3x.
Five less than 3x means you must subtract 5 from 3x.
the word "is" means equals,
so 3x-5=10
Step-by-step explanation:
since it is given that 3 times a number less than five is 1
since it is given that 3 times a number less than five is 1 getting equation:- 3x-5=1
since it is given that 3 times a number less than five is 1 getting equation:- 3x-5=1 x=6/3
since it is given that 3 times a number less than five is 1 getting equation:- 3x-5=1 x=6/3 x=2
I need help lol....
After traveling for 4 hours and 1800 miles, an airplane begins a steady descent. When it begins descending, its altitude (height) is 33,000 feet. After 8 minutes, it is at 17,000 feet. Answer the questions to write a function that models the plane's altitude.
Answer:
S=33000-2000tStep-by-step explanation:
Step one:
Let A be the altitude of the plane
Hence we can define a function that represents this scenario.
the rate at which the plane's altitude decreases is
=33000-17000/8
= 16000/8
=2000
The rate of decrease is 2000 ft per minute.
Thus for anytime "t" the expression for the altitude is
S=33000-2000t-------where t is the time in minute.
say we want to find altitude after 12 minutes
then t=12
substitute in the expression we have
S=33000-2000(12)
S=33000-24000
S=9000ft
Answer:
Part 1) Descending Rate = -2,000 ft/min
Part 2) Starting altitude value is 33,000 ft
Part 3) The linear equation for the plane's altitude (y) as a function of time (x) is:
Part 4) The information not used for the equation is that the plane was travelling for 4 hours to cover 1800 miles before starting the descent
Step-by-step explanation:
Part 1)
The rate at which the airplane descends is given by the difference between final and initial altitude (17,000 ft-33,000 ft) divided the elapsed time (8 minutes):
Part 2)
When graphing the descent (that is the plane's altitude as a function of time), the starting value for the altitude should be 33,000 ft
Part 3)
We can build the equation of the plane's altitude as a function of time in slope y-intercept form y = m x + b
by noticing that the slope "m" stands for the rate of descent that we found in part 1), and then using the information that at time zero (when the plane starts its descent), its altitude is 33000 ft:
with this information about the intercept "b", we can write the final expression for the plane's altitude as a function of time during its descent as:
Part 4)
The information that was not used to write the descent equation was the initial details about how long the plane traveled (4 hours) and for 1800 miles.
Step-by-step explanation:
Which pair of complex numbers has a real-number product?
(1 + 31 (6)
(1 + 3)(2-31)
(1 + 3)(1 – 31)
0 (1 + 3/)(31)
Answer: C. (1 + 3i)(1 - 3i)
Step-by-step explanation:
Took the test on edgnuity
Answer:
The person ontop is correct! It is C.
Express as a trinomial, .
(2x - 1)(3x– 4)
Answer:
6x2-11x+4
..........
At Summer camp, campers are divided into groups. Each group has 16 campers and 2 cabins. How many cabins are needed are needed for 48 campers? A: 14 B: 20 C: 6 D: 30
Answer:
6
Step-by-step explanation:
At summer camp campers are divided into groups
Each group has 16 campers and 2 cabins
Therefore the number of cabins needed for 48 campers can be calculated as follows
16 campers = 2 cabins
48 campers = x
Cross multiply
16 × x = 48×2
16x =96
x= 96/16
x= 6
Hence 6 cabins are needed for 24 campers
A photographer for sells photographs for $20 each an art show he spent 185 to print the photographs and made a profit of 55 at the art show what is the equation
Answer:
260
Step-by-step explanation:
Plzzz help I will mark brainliestttt
Answer:
Not a function
Step-by-step explanation:
For every input there is one and only one output. So on this graph, it shows that there are two dots on a single vertical line, which means that there are two outputs. Because the definition of a function is "for every input there is one and only one output" we know that it is not a function.
What is the length of BC in the right triangle below? B 18 A с 80
A. 1512
B. 98
C. 82
D. 3624
E. 6724
F. 14
Answer:
c
Step-by-step explanation:
cc
The length of BC in the right triangle is 82 units
What is Trigonometry?Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles.
From the given triangle the line segment AB is 18 units
AC is 80 units
We have to find BC
By using pythagoras theorem we find the length of segment BC
BC²=AB²+AC²
BC²=18²+80²
BC²=324+6400
=6724
BC=√6724
BC=82
Hence, the length of BC in the right triangle is 82 units
To learn more on trigonometry click:
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Help me with this one
Answer:
SSS
Step-by-step explanation:
We can see that 2 sides are equal already, and because they share a side, that side is also equal. So, side side side.
Arrange the decimals from least to greatest. Choose the letter below that shows the order least to greatest.
5.00 0.55 0.005 5.005 5.5
0.55, 0.005, 5.00, 5.5, 5.005
0.005, 0.55, 5.00, 5.005, 5.5
0.005, 5.00, 0.55, 5.005, 5.5
Answer:
ima guess 3
Step-by-step explanation:
Answer:
the 3rd one
Step-by-step explanation:
0.005, 0.55, 5.00, 5.005, 5.5
brainlyest?
Calculate the rise and run to find the slope of each line
Answer:
Step-by-step explanation:10
Answer:
1) slope m=-4
2) slope m=-5/4
3) slope m=1
4) slope m=-2
5) slope m=3/5
6) slope m=5/8
Step-by-step explanation:
Slope equation: m=y2-y1/x2-x1
With our slope equation can get just use the graph and choose two points that the line crosses over.
Question 1 example) I chose points (0,-3) as my x1, y1, and point (1,-1) as my x2, y2. I plugged the numbers into the equation and got -1-3/1-0=-4. Which is why our slope is -4
The rest of the questions follow the same concept of Finding two points, decide which one is your x1, y1 and which one is you x2, y2 (does not matter which one you associate with each point), plug the numbers in, and calculate the slope.
(I may be wrong because the graph is a little blurry)
Hope this helps you
The midpoint of AB is M(-2, 5). If the coordinates of A are (1, 7), what are the coordinates of B?
Answer:
(-5, 3)
Step-by-step explanation:
The midpoint formula: [tex](\frac{x_1 + x_2}{2} , \frac{y_1 + y_2}{2})[/tex]
Now, if we work backwards, starting with the x-coordinate
-2 * 2 = -4 - 1 = -5
Then, the y-coordinate
5 * 2 = 10 - 7 = 3
We reach our answer of (-5, 3). A good habit would be to plug these points back into the formula to check if your answer is correct.
2. Michael bought a sandwich that cost $4.69, a bag of chips that cost $1.99
and an iced tea for $2.50. How much did he spend in all? *
A. 7.19
B. 4.49
C. 6.68
D. 9.18
Answer:
9.18
Step-by-step explanation:
4.69
1.99
+2.50
9.18
There are 40 houses in the neighborhood around CMS that have internet service
1/8of the houses use AT&T.
2/5of the houses use Spectrum.
1/4 of the houses use Frontier.
The rest of the homes do not have internet service.
How many homes in the neighborhood DO NOT have internet service?
31
26
9
16
Answer:
the answer is 44 cecaeuju
Solve: -68.1 * 0.8
A) -54.48
B) 68.9
C) 54.48
D) -68.9
Answer:
A) - 54.48
Step-by-step explanation:
Just plug it into the calculator like this; (-68.1) x 0.8, which equals -54.48.
the answer is negative because you multiplied a positive # and a negative #.
Ixl!!! Help please lol?
Answer:
No am I right?
Step-by-step explanation:
I can't really explain why but I'm pretty sure it's no
Answer:
yes i think
Step-by-step explanation:
Even though all sides are not congruent a square can be a rectangle.
A store is selling 6 for $45 if you have $75 how many can you buy?
−5x+13y=−7
5x+4y=24
x=
y=
Answer:
Using eliminating method then adding equation 1 and 2 give
X= 4and y =1
if u guys can do this it will be awsome
uh?
Step-by-step explanation:
sooo what am i gonna do??
Answer:
Your basically supposed to color the parts based on the answering the 8 questions on your paper.
If you do not have an questions, then just color according to the numbers.
BTW I see the word "MATH" hidden.
What is k? (look at the attached photo for the problem, thank you!!)
HELP!! ANSWER FIND THE DOMAIN AND RANGE
Answer:
The 3rd option
Step-by-step explanation:
Lmk if you need me to explain
What is the domain of the function f(x) = 2/5√x ?
all real numbers
all real numbers less than 0
all real number less than or equal to 0
all real numbers greater than or equal to 0
Answer:
D: All real numbers greater than or equal to 0.
Step-by-step explanation:
Answer:
the answer is D
Step-by-step explanation:
just took the test
If you go shopping and a pair of jeans cost $50.00 but they are on sale for 50% off or 1/2 off what is the price of the jeans
Answer:
$25
Step-by-step explanation:
you just subtract 25 from 50 since 25 is half of 50.
65.1 acres divided by 3
Answer:
according to me is 87 816.7844 m2
Answer:
21.7
Step-by-step explanation:
65.1 ÷ 3 = 21.7
Hope this helps!
Use the Distance Formula to write an equation of the parabola with directrix y=7 and focus (0,−7).
Answer:
Step-by-step explanation:
Find the Parabola with Focus (7,0) and Directrix x=-7 (7,0) x=-7. (7,0) ( 7 , 0 ) x=−7 x = - 7. Since the directrix is horizontal, use the equation of a parabola that opens left or right. ... Find the distance from the focus to the vertex. ... Substitute in the known values for the variables into the equation (y−k)2=4p(x−h) ( y - k ) 2 = 4 p ...
Using the distance formula, the equation of a parabola with directrix y=7 and focus (0,−7) is [tex]x^2 = -28y[/tex]
The focus = (0, -7)
The directrix: y = 7
The distance formula is given as:
[tex](x - a)^2+(y-b)^2= r^2[/tex]
From the focus (0, -7)
a = 0, b = -7
r = y - 7
Substitute a = 0, b = -7 and r = y - 7 into the equation above:
[tex](x - 0)^2 + (y +7)^2 = (y - 7)^2\\\\x^2 + y^2+14y + 49= y^2-14y+49\\\\x^2 = y^2-y^2-14y-14y+49-49\\\\x^2 = -28y[/tex]
Using the distance formula, the equation of a parabola with directrix y=7 and focus (0,−7) is [tex]x^2 = -28y[/tex]
Learn more here: https://brainly.com/question/19134275
PLEASE HELP I NEED THIS TODAY!!
Answer:
The area is 200.96 in^2
Step-by-step explanation:
Answer:
200.96 in^2
Step-by-step explanation:
circle area formula is πr^2
radius = diameter / 2, radius is 8
8^2.π = 64π
π = 3,14
final answer is 64 X 3.14= 200.96 in^2
PLEASE HELP!! 15 Points for CORRECT ANSWER ( nOT POINT D) THANK YOU AND BRAINLIEST
Answer:hmm I think point d
I’m not to sure ✨
Step-by-step explanation:
Answer:
I think its point E it would make the most sense
Step-by-step explanation:
I'm pretty sure in in the same plane and A,C,G
Daniel has $125 in his bank account. He saves $40 each week from his allowance. He needs a total of $600 in order to buy a PS5. Complete the equation, and determine how many weeks it will take him to save up enough money.
[tex] \LARGE{ \underline{\underline{ \tt{Required \: answer:}}}}[/tex]
We have,
Initial amount = $125 (Constant)Per week savings = $40Amount to be collected for buying a PS5 = $600What to do?
We need to frame an equation with variable determining the no. of weeks it will take him to save up the money.Here's how to do?
Let the no. of weeks be x. Then,
Amount collected by savings = $40x
So, The equation will be:
➝ 125 + 40x = 600
Note:
Don't forget to add the unit i.e. dollars '$' here.The tens digit of a two-digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 less than the number itself. Find the number.
Answer:
43
Step-by-step explanation:
Let
The unit digit = x
The tens digit = y
The number = 10x + y
The tens digit of a two-digit number is five more than the units digit.
y = x + 5
Seven times the sum of the digits of this number is 3 less than the number itself.
7(x + y) = 10x + y - 3
7x + 7y = 10x + y - 3
Find the number.
We substitute x + 5 for y
7x + 7(x + 5) = 10x + (x + 5) - 3
7x + 7x + 35 = 10x + x + 5x - 3
14x + 35 = 11x + 5x - 3
Collect like terms
35 + 3 = 11x + 5x -14x
38 = 16x - 14x
38 = 2x
x = 38/2
x = 19
Solving for y
y = x + 5
y = 19 + 5
y = 24
The number = 19 + 24
= 43
Answer:
The correct answer is 94
Step-by-step explanation:
What is the slope of x=3y+9 and why?