Step-by-step explanation:
4x + 8 + x - 2 - 3x
= 2x + 6
= 2(5) + 6
= 16.
Answer:
4*5 + 8 + 5 - 2 - 3*5 = 20 + 8 + 5 - 2 - 15 = 28 + 5 - 2 - 15 = 33 - 2 - 15 = 31 - 15 = 16
I'll give brainliest (; Please help tysm ❤
A number is 2 tens more than 923
Answer:
953..?
Step-by-step explanation:
help pleaseeeeee! I need an answer quick please
Answer:
subtraction
Step-by-step explanation:
b= 40 - 5
40- 5 =35
b=40
Answer:
addition
Step-by-step explanation:
Myra is putting together a puzzle such that every 5 days she places one quarter of the remaining pieces into the puzzle. If she started with a 800 piece puzzle, how many pieces are left to be placed after 23 days? Show the work that leads to your answer
Given:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
To find:
The number of remaining pieces after 23 days.
Solution:
Initial number of pieces Myra have = 800.
Every 5 days she places one quarter of the remaining pieces into the puzzle.
It means, she will place the puzzles on 5,10,15,20,25,.. days. she will place the puzzle 4 times before 23 days.
The number of remaining pieces decreasing by [tex]\dfrac{1}{4}[/tex].
Formula for number of remaining pieces is
[tex]y=a_0(1-r)^t[/tex]
where, [tex]a_0[/tex] is the initial value, r is decreasing rate and t is time.
Putting [tex]a_0=800,r=\dfrac{1}{4}[/tex] and t=4, we get
[tex]y=800(1-\dfrac{1}{4})^4[/tex]
[tex]y=800(\dfrac{3}{4})^4[/tex]
[tex]y=800(0.75)^4[/tex]
[tex]y=800(0.31640625 )[/tex]
[tex]y=253.125[/tex]
Approximate the value to the nearest whole number.
[tex]y\approx 253[/tex]
Therefore, the number of remaining pieces is 253.
What percent is equivalent to StartFraction 3 Over 10 EndFraction? 0.3% 3% 10% 30%
Answer:
30%
Step-by-step explanation:
A squirrel collected 45 acorns for winter and can hide 4 acorns in a single hole. How many holes will the squirrel need to dig to hide all the acorns?
Answer:
the squirrel needs to dig 12 holes.
Step-by-step explanation:
11 x 4 = 44, plus an extra hole for the one acorn left over.
State the domain and range of the relation below.
{(1, -2), (4, 5), (2, -4), (6,5), (2, 2)}
A domain = {1, 2, 4, 6) and range = {-4, -2, 2,5}
B domain = {-4, -2, 2, 5} and range = {1, 2, 4, 6}
c domain = {-2, 1, 2, 4, 5} and range = {-4, 2, 2, 5, 6}
D domain = {-4, 2, 2, 5, 6} and range = {-2, 1, 2, 4,5}
* need help fast *
Answer:
The answer you are looking for is A.
Step-by-step explanation:
Remember, the domain is a set of working x values or all possible inputs of a function or two variable relationship. The range is a set of working y values or all possible outputs of a function or two variable relationship. A two variable relationship with more than one output for each input will not be a function in general but will be refered to as inverse.
Now given a set of coordinates for this relation, coordinates with x and y values or inputs and outputs are generally cartesian coordinates represented by (x,y). This is so we know the working x value for each y value, also making it easier to graph it on a coordinate plane or visualize it. x = domain (input of a function) , y = range (output of a function).
All you have to do is sort the x and y values you are given from the coordinates.
For instance, (-1,2) and (4,5) : domain of -1 and 4 [the x values], range of 2, and 5 [the y values].
4 divided by the sum of 2 and 12
Answer:
Step-by-step explanation:
4/(2+12)
=4/14
=2/7
=0.2857
Step-by-step explanation:
4/(2+12)
4/(14)
=0.285714286/ 2/7
I Need Help Please And Thank You
Which Exponentail expression represents The numerical expression 1/12 . 1/12 . 1/12 . 1/12?
Answer:
1/12^4 the for is small and raised
Step-by-step explanation:
can you please explain this?
Answer:
The question is giving you pairs of points in space which can be used to define lines. It is then asking you to determine if the lines defined by those points are parallel, perpendicular, or neither.
Step-by-step explanation:
Two key things you need to know to solve this is that the lines will be parallel if their slopes are the same, and perpendicular if one slope is the negative reciprocal of the other (i.e. [tex]s_{1} = -s_{2}^{-1}[/tex])
Let's start with question 11. You are given two pairs of points, each of which describes a distinct line:
(3,5)-(1,1) and (0, 2)-(5, 12)
To find the slope of each pair, take the vertex with the lesser x co-ordinate, and subtract it from the vertex with the greater x co-ordinate. That will give us a valid Δx and Δy to get the slope.
In the first pair, 3 > 1, so we'll subtract the second point from the first:
[tex]s = \Delta y / \Delta x\\s = \frac{5 - 1}{3 - 1}\\s = 4/2\\s = 2[/tex]
So the first pair of vectors describe a line with a slope of 2. Let's look at the other pair:
[tex]s = \Delta y / \Delta x\\s = (12 - 2) / (5 - 0)\\s = 10 / 5\\s = 2[/tex]
That also gives us a slope of 2, meaning that the two lines are parallel.
This same process will need to be done for the other three questions. We can't answer questions 12 or 14 here, as the last point is cut off on the edge of the image. For question 3 though, one line has a slope of 7/3, and the other 3/7. That puts them in the "neither" category, as one is not the negative reciprocal of the other, but instead the positive reciprocal.
Frank and Erica are selling ribbons to raise money for the football team. The graph shows the linear relationship between the number of ribbons each of them has left to sell and the number of days that they have been selling the ribbons. On which day does it appear that frank and Erica will have the same number of ribbons left to sell?
Answer:
Day 18
Step-by-step explanation:
Given the equation y=-3x+2.5: When x is 1, what value of y makes the equation true? When x is -1.5, what value of y makes the equation true? When y is 8.5, what value of x makes the equation true?
Step-by-step explanation:
when,X=1
y=-3 *1+2.5
y=-3+2.5
y=0.5
when,X=1.5
y=-3*1.5+2.5
y=-4.5+2.5
y=-2
when,y=8.5
8.5=-3*X+2.5
3*X=2.5-8.5
3*X=-6
X=-6/2
X=-3
Hence, the statements are true:
when [tex]x=-1.5[/tex] the value of [tex]y=-2[/tex] and when [tex]y=8.5[/tex] then [tex]x=-3[/tex].
What is the equation?
The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.
Here given equation is
[tex]y=-3x+2.5[/tex]
So,
[tex]y=-3 (1)+2.5\\y=-3+2.5\\y=0.5\\[/tex]
When,
[tex]x=-1.5\\y=-3(1.5)+2.5\\y=-4.5+2.5\\y=-2\\[/tex]
when,
[tex]y=8.5\\8.5=-3x+2.5\\3x=2.5-8.5\\3x=-6\\x=-\frac{6}{2}\\x=-3\\[/tex]
Hence, the statements are true:
when [tex]x=-1.5[/tex] the value of [tex]y=-2[/tex] and when [tex]y=8.5[/tex] then [tex]x=-3[/tex].
To know more about the equation
https://brainly.com/question/12788590
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y=2/3 x-2 on a graph line
Answer:
3,0 and 0,(-2)
Step-by-step explanation:
-5x-4y=10
y intersect: (____ ; ____)
x intersect: (____; _____)
see picture above. dont answer if u dont know. first gets marked brainliest!!
Answer:
y intercept = [tex](0, ~-\frac{5}{2} )[/tex]
x intercept = [tex](-2, ~0)[/tex]
.
Step-by-step explanation:
[tex]-5x - 5y = 10[/tex]
.
y intercept
[tex]\to x = 0[/tex]
[tex]-5(0) - 4y = 10[/tex]
[tex]-4y = 10[/tex]
[tex]y = \frac{10}{-4}[/tex]
[tex]y = -\frac{5}{2}[/tex]
so, the answer is [tex](0, ~-\frac{5}{2} )[/tex]
.
x intercept
[tex]\to y = 0[/tex]
[tex]-5x - 4(0) = 10[/tex]
[tex]-5x = 10[/tex]
[tex]x = \frac{10}{-5}[/tex]
[tex]x = -2[/tex]
so, the answer is [tex](-2, ~0)[/tex]
.
Happy to help :)
Answer:
wjwjwjwjwj qjqjjw ajajwj ajajqjjq qjqjaj wjwjjw wjwjwj wjwjw
Step-by-step explanation:
bqhhq wjwjw wjwjw wjwj
I WILL MARK YOU AS BRANLIEST JUST DO THIS PLS ASAP
Edson exercises in sets that are each t minutes long. He does 6 sets of push-ups, 3 sets of pull-ups, and 4 sets of sit-ups. Write an expression to represent the time it takes Edson to exercise as the sum of three different terms. Then simplify the expression.
Answer:
(6t) + (3t) + (4t)
Simplified it would be 13t
pls help meh ill give bainliest
Answer:
0.8
Step-by-step explanation:
rest all of them are 0.08
so correct answer is 0.8
hope it helps!
Answer :D
I would go with the 4th one becuase that number has diffrernt numbers then the other ones have the same numbers.
Please help I will mark brainliest
Answer: C
Step-by-step explanation:
$3.50/lb is the unit weight. Since your # of lbs is x it would be 3.50x. Simple
Have a nice day :)
Henry drank 2/5 of his water bottle. If he drank 3 cups of water, what was the total amount of cups of water in his water bottle? Solve with a model and a full sentence answer.
Answer:
The amount of cups of water in the water bottle is 7.5.
Step-by-step explanation:
Given that Henry drank 2/5 of his bottle of water, and those 2/5 were distributed in 3 glasses, to determine the total amount of glasses that go into the bottle it is necessary to perform the following calculation:
2/5 X = 3
1/5 X = 1.5
X = 1.5 x 5
X = 7.5
Therefore, the bottle fits 7 and a half glasses of water.
how many ventices are there in a cuboid
8
Step-by-step explanation:
By Euler's formula the numbers of faces F, of vertices V, and of edges E of any convex polyhedron are related by the formula F + V = E + 2. In the case of a cuboid this gives 6 + 8 = 12 + 2; that is, like a cube, a cuboid has 6 faces, 8 vertices, and 12 edges.
Answer:
there are 8 6+8=12+2 vertices, and 12 edges
geometry:(
will give brainist to correct answer:)
Given:
End points a line segment are (9,-8) and (-1,-4).
To find:
The equation of perpendicular bisector of given line.
Solution:
Slope of given line is
[tex]m=\dfrac{y_2-y_1}{x_2-x_1}[/tex]
[tex]m_1=\dfrac{-4-(-8)}{-1-9}[/tex]
[tex]m_1=\dfrac{-4+8}{-10}[/tex]
[tex]m_1=\dfrac{4}{-10}[/tex]
[tex]m_1=-\dfrac{2}{5}[/tex]
Product of slopes of two perpendicular line is -1.
[tex]m_1\times m_2=-1[/tex]
[tex](-\dfrac{2}{5})\times m_2=-1[/tex]
[tex]m_2=\dfrac{5}{2}[/tex]
So, slope of perpendicular bisector is [tex]\dfrac{5}{2}[/tex].
Perpendicular bisector passes through the midpoint of given endpoints.
[tex]Midpoint=\left(\dfrac{x_1+x_2}{2},\dfrac{y_1+y_2}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{9+(-1)}{2},\dfrac{(-8)+(-4)}{2}\right)[/tex]
[tex]Midpoint=\left(\dfrac{8}{2},\dfrac{-12}{2}\right)[/tex]
[tex]Midpoint=\left(4,-6\right)[/tex]
So, perpendicular bisector passes through (4,-6) and having slope [tex]\dfrac{5}{2}[/tex]. The equation of perpendicular bisector is
[tex]y-y_1=m(x-x_1)[/tex]
where, m is slope.
[tex]y-(-6)=\dfrac{5}{2}(x-4)[/tex]
[tex]y+6=\dfrac{5}{2}(x)+\dfrac{5}{2}(-4)[/tex]
[tex]y+6=\dfrac{5}{2}x-10[/tex]
[tex]y=\dfrac{5}{2}x-10-6[/tex]
[tex]y=\dfrac{5}{2}x-16[/tex]
Therefore, the equation of perpendicular bisector is [tex]y=\dfrac{5}{2}x-16[/tex].
make m the subject of g-3m=am+5
Answer:
m = (g - 5) / (a + 3)
Step-by-step explanation:
g-3m=am+5
Get all the m's on one side.g - 5 = am + 3m
Combine the m's into one term, using bracketsg - 5 = (a + 3)m
Get m on it's own by dividing by a + 3(g - 5) / (a + 3) = m
Answer:
[tex]\displaystyle m=\frac{g-5}{3+a}[/tex]
Step-by-step explanation:
Equation Solving
To solve an equation for a specific variable, we perform a sequence of steps to have that variable isolated or make it the subject of the equation.
We are given the expression:
[tex]g - 3m=am+5[/tex]
And it's required to make m the subject of the equation. This means we have to isolate m at the left side of the equation.
First, multiply both sides by -1;
[tex]-g + 3m=-am-5[/tex]
Add am:
[tex]-g + 3m+am=-5[/tex]
Add g:
[tex]3m+am=-5+g[/tex]
The variable m is found in both term, thus we factor it out:
[tex]m(3+a)=g-5[/tex]
Dividing by 3+a:
[tex]\mathbm{\displaystyle m=\frac{g-5}{3+a}}[/tex]
2x+3/4(4x+16)=7
I need help finding x.. I don’t know how to do these problems with fractions :(
Answer:
x=-1
Step-by-step explanation:
2x+3/4(4x+16)=7
2x+(3x12)=7--->distributive property
2x+3x+12=7
5x+12=7--->addition property
5x=-5--->subtraction peroperty
x= -1---?division property
5 times w increased by 4 is 2 times u.
(i don’t understand function rules)
will give brainliest
Answer:
5w + 4 = 2u
Step-by-step explanation:
If your problem is putting that statement into number form, then that'll be your answer
If you drive 600 miles in 10 hours, what is your average speed? Options-
610 miles per hour
60 miles per hour
0 6,000 miles per hour
50 miles per hour. I’m so confused
finding centroid of triangles
Joshua has at most 10 dollars a cab company will charge him 4 dollars flat and a rate is 1.25 for each mile driven write and solve and inequality for the above situation
Answer:
4.8 miles
Step-by-step explanation:
First you need to figure out an equation which will be 10<or equal to 1.25m+4. In this equation m=the number of miles. Knowing this information you can now solve. You want to subtract 4 from both sides leaving you with 6 is less than or equal to 1.25m. You then divide both sides by 1.25 and you are left with 4.8 is less than or equal to m.
What is the sign of \dfrac bc c b start fraction, b, divided by, c, end fraction? Choose 1 answer: Choose 1 answer: (Choice A) A Positive (Choice B) B Negative (Choice C) C Zero
Answer:
A Positive
Step-by-step explanation:
If we input the fraction given to us by using the text editor, we have:
\dfrac{b}{c}
OUTPUT:
[tex]\dfrac{b}{c}[/tex]
The sign before that fraction term is known as positive.
Answer:
a. postive
Step-by-step explanation:
Find the square root.
9
25
0.12
Plz need help asap
Answer:
the square root of 9 is 3
the square root of 25 is 5
the square root of 0.12 is 0.346
Answer:
exact form is 3/5 and dcimal form is 0.6.
Step-by-step explanation:
simplify the radical by breaking the radicand up into a product of nown factors,assuming positive real numbers.
PLZZZ HELP I NEED ANSWERS FAST i will mark you
Answer:
y=-4/3x+9
and
y=4x+ 6
Step-by-step explanation: