Answers
Related Questions
-4(v + 1) = 2(1 - 20) - 6
Answers
Answer:
v=10
Step-by-step explanation:
-4(v+1)=2(1-20)-6
step 1
distribute the -4 to v and 1 and distribute the 2 to 1 and --20
-4xv=-4v-4x1=-4 2x1=2 2x-20=-40
now we have -4v-4=2-40-6
step 2 combine like terms
the only like terms are -6 and -40 2
-6+-40+2=-44
now we have
-4v-4=-44
step 3 add 4 to each side
4+-44=-40
-4+4 cancels out
were left with
-4v=-40
the last step is to divide each side by -4
-4/-4 cancels out
-40/-4=10
in conclusions
v=10
have a great day :D
60 points for three questions. please help meeee
Answers
Answer:
The first one is D
Step-by-step explanation:
Answer:
First one is D neither .
second one is 3 .
third one is :
x intercept : -13/6
y intercept = 13
Las calificaciones obtenidas por un grupo de 49 alumnos en una prueba con las siguientes: 3.0; 5.5; 4.4; 6.0; 4.3; 7.2; 4.7; 6.5; 6.7; 4.0; 5.9; 5.8; 1.4; 3.2; 5.8; 4.6; 4.1; 3.5; 6.8; 5.0; 5.9; 2.1; 4.2; 4.5; 4.1; 4.8; 2.8; 4.7; 7.7; 6.0; 3.0; 5.7; 4.5; 4.9; 3.3; 4.8; 4.7; 7.7; 6.0; 3.0; 5.7; 4.5; 4.9; 3.3; 4.8; 4.7; 5.2; 3.8; 6.1. Agrupa en siete intervalos estos datos y construye la tabla de frecuencias correspondientes, hallando los valores de la media, la mediana y la moda de los mencionados datos
Answers
Answer:
nosejgivuguvug7gug7g7g
Step-by-step explanation:
pol
Talia bas 26 $1 coins, 20-cent coins, 50-cent coins. The number of $1 coins is 6 more than the number of 20-cent coins. The total value of the coins is $17.20. How many 50-cent coins are there?
Answers
Answer:
8 fifty cents coin.
Step-by-step explanation:
Let's assign variable for the unknown number of coins.
Let there are 'x' number of $1 coins
'y' number of 20 cent coins
'z' number of 50 cent coints.
Totally there are 26 coins.
So, x+y+z=26
Now, there are 6 more $1 coins than 20-cent coins.
We can set up equation for this as
x= y+6
Now, total value of these coins is $17.20
We can setup equation as
100 x+20 y+50 z=1720
Now, substitute x as y+6
100(y+6) +20 y+50 z =1720
Distribute the 100 to get rid ( )
100 y+600 +20 y+50 z=1720
Combine like terms
120 y+50 z= 1120
Keep this equation as it is.
Plug in x as y+6 into x+y+z=26
y+6+y+z=26
2y+z=20
Now, take the two equations
2y+z=20
120y+50z=1120
Multiply first equation by -60 to eliminate the y terms when we add them.
-120y-60z=-1200
120y+50z= 1120
-------------------------
-10z =-80
Divide both sides by -10
z=8
Now, plug in z as 8 into 2y+z=20
2y+8 =20
Subtract both sides 8
2y=12
Divide both sides by 2
y=6
Now, plug in y, z values into the first equation.
x+6+8=26
x+14=26
Subtract both sides 14
x=12
So, there are eight 50-cent coins.
* This is the correct answer, I have taken the test and am posting the answers in hopes of helping other people :] *
Based on the diagram, what is tanA?
Enter your answer in the boxes.
tanA=
Answers
Aw that's really nice of you thanks
thank you <3 appreciate it loads
3.
Write a function rule for the table.
A. p = 7.50h
B. p = h + 15
C. p = 15h
D. h = 7.50p
Answers
Answer:
p = 7.50h
I got this correct, the answer is A. p= 7.50h
Step-by-step explanation:
The answer would be d because every two hours someone works they get $15 and for the equation we must know how much they work for one hour so that it works with the equation (we'd have to simplify it down do how much paid up per hour). so half of 15 is 7.5 so the equation would be p=7.50h (standing for $7.50 per hour).
The correct answer is: [D]: " p = 7.50 h " .
________________________________________________
The pay, "p" , is a function of the hours worked.
When h = 2, (h = number of hours);
the pay, "p" , is equal to " 7.50 * 2 " = 15.00 dollars" ; as shown on table.
When h = 4 ; p = " 7.50 * 4 = 30.00 dollars" ; as shown on table .
When h = 6 ; p = " 7.50 * 6 = 45.00 dollars" ; as shown on table.
When h = 8 ; p = " 7.50 * 8 = 60.00 dollars" ; as shown on table.
_____________________________________________________
a glass top of an office table is in the form of rectangle. The diagonal of the table have length 5x-11 and 2x+25
1.what is the value of x?
2.what us the length of the diagonal?
Answers
Answer:
1) The value of [tex]x[/tex] is 12.
2) The length of the diagonal is 49.
Step-by-step explanation:
1) If the glass is a rectangle, then both diagonal must have the same length, that is, the following equation must be solved:
[tex]5\cdot x - 11 = 2\cdot x + 25[/tex] (1)
We need some algebraic handling to determine the value of [tex]x[/tex]:
[tex]5\cdot x - 11 = 2\cdot x + 25[/tex]
[tex]5\cdot x - 2\cdot x = 25 +11[/tex]
[tex][5+(-2)] \cdot x = 36[/tex]
[tex]3\cdot x = 36[/tex]
[tex]x = 12[/tex]
The value of [tex]x[/tex] is 12.
2) If we know that [tex]x = 12[/tex], then the length of the diagonal ([tex]d[/tex]) is:
[tex]d = 2\cdot x + 25[/tex]
[tex]d = 49[/tex]
The length of the diagonal is 49.
A tabletop in the shape of a trapezoid has an area of 5029 square cenimeters. Its longer base measures 123 cenimeters, and the shorter base is 65 cenimeters. What is the height?
Answers
Answer:
Length of height = 53.5 cm
Step-by-step explanation:
Given:
Area of trapezoid = 5,029 cm²
Length of longer base = 123 cm
Length of shorter base = 65 cm
Find:
Length of height
Computation:
Area of trapezoid = [(a+b)/2]h
5,029 = [(123 + 65)/2]h
5,029 = [(188)/2]h
5,029 = [94]h
Length of height = 53.5 cm
Kevin is making a picture frame. He has a piece of trim that is 3 feet long.
How many 14−inch-long pieces can Kevin cut from the trim?
How much of a foot will he have left over?
Kevin can cut______ 14−inch-long pieces with______ of a foot left over.
Answers
Mrs. Doan spends $36 at a carnival. This is 75% of the money she brings to the carnival. How much money does Mrs. Doan bring to the carnival?
Answers
Answer:
$48
Step-by-step explanation:
Caffeine leave the body or continuous rate of 18% per hour of Alexa drinking energy drink that contains 110 mg of caffeine how much caffeine will be in your bloodstream after 12 hours
Answers
Answer:
10.168 mg
Step-by-step explanation:
Amount of caffeine in body = 110 mg
Decreases at the rate of rate of 18% per hour
how much caffeine will be in your bloodstream after 12 hours
After the first hour;
New amount = 110 - (0.18 * 110) = 90.2 mg
After the second hour;
New amount = 90.2 - (0.18 * 90.2) = 73.964 mg
After the third hour;
New amount = 73.964 - (0.18 * 73.964) = 60.65 mg
After the fourth hour;
New amount = 60.65 - (0.18 * 60.65) = 49.733 mg
After the fifth hour;
New amount = 49.733 - (0.18 * 49.733) = 40.78 mg
After the sixth hour;
New amount = 40.78 - (0.18 * 40.78) = 33.44 mg
After the seventh hour;
New amount = 33.44 - (0.18 * 33.44) = 27.4208 mg
After the eighth hour;
New amount = 27.4208 - (0.18 * 27.4208) = 22.485 mg
After the ninth hour;
New amount = 22.485 - (0.18 * 22.485) = 18.4377 mg
After the tenth hour;
New amount = 18.4377 - (0.18 * 18.4377) = 15.119 mg
After the eleventh hour;
New amount = 15.119 - (0.18 * 15.119) = 12.40 mg
After the twelfth hour;
New amount = 12.40 - (0.18 * 12.40) = 10.168 mg
1/3 x - 6 = 3 what is the answer for x
Answers
Answer:
x = 3
Step-by-step explanation:
Answer:
x=27
Step-by-step explanation:
Twenty students out of 80 kids had pizza for lunch. What is the percentage of students that had pizza for lunch?
Please help!!!
Answers
Answer:
25%
Step-by-step explanation:
20/80 = 2/8 = 1/4
1/4 = 0.25
0.25 x 100 = 25
so 25%
Answer:
0.25
Step-by-step explanation:
Divide 20 by 80
round to nearest thousandth
0.227
Answers
Answer:
is there another number after the 7 if so if it is 5 or bigger it rounds up but 1-4 rounds down
Step-by-step explanation:
Answer:
0.23!! =D
hundredths (1/100)
round nearest hundredth
Answers
Answer:.
Step-by-step explanation:nearest hundredth the answer for this question is joe mama
plzzzz help meee.......
Answers
Answer: [tex]-3\hat{i}-6\hat{j}+2\hat{k}[/tex]
Step-by-step explanation:
Given
[tex]\vec{a}=2\hat{i}+4\hat{j}-5\hat{k}\\\vec{b}=\hat{i}+\hat{j}+\hat{k}[/tex]
[tex]\vec{c}=\hat{j}+2\hat{k}[/tex]
The addition of the three is [tex]\vec{a}+\vec{b}+\vec{c}[/tex]
[tex]\vec{a}+\vec{b}+\vec{c}=(2\hat{i}+4\hat{j}-5\hat{k})+(\hat{i}+\hat{j}+\hat{k})+(\hat{j}+2\hat{k})[/tex]
[tex]\vec{a}+\vec{b}+\vec{c}=3\hat{i}+6\hat{j}-2\hat{k}[/tex]
vector opposite to the vector [tex]\vec{a}+\vec{b}+\vec{c}\ \ \text{is}\ -(\vec{a}+\vec{b}+\vec{c})[/tex]
[tex]\therefore -(\vec{a}+\vec{b}+\vec{c})=-3\hat{i}-6\hat{j}+2\hat{k}[/tex]
1
Select the correct answer.
What is the general form of the equation of a circle with center at (a, b) and radius of length m?
OA. x + y2 - 2ax – 2by + (a? + b2 - m?) = 0
OB.
x+y + 2ax + 2by+ (a1 + b2 - m?) = 0
O c.
x + y2 - 2ax - 2by + (a + b-m) = 0
OD. x + y2 + 2ax + 2by + 32 + b2 =-m?
Reset
Next
Answers
The general form of an equation of a circle with center at (a, b) and radius of length m is x² + y² - 2ax - 2by + (a² + b² - m²) = 0.
What is Circle?Circle is a two dimensional figure which consist of set of all the points which are at equal distance from a point which is fixed called the center of the circle.
Standard form of a circle is given by the equation,
(x - h)² + (y - k)² = r²
where, (h, k) is the center of the circle and r is the radius of the circle.
Here center is given as (a, b).
Radius is given as m.
Substituting,
(x - a)² + (y - b)² = m²
x² - 2ax + a² + y² - 2by + b² = m²
x² + y² - 2ax - 2by + (a² + b²) = m²
x² + y² - 2ax - 2by + (a² + b² - m²) = 0
Hence the required equation is, x² + y² - 2ax - 2by + (a² + b² - m²) = 0.
Learn more about General Form of Circle here :
https://brainly.com/question/10618691
#SPJ7
True or false? A correct answer is worth (2 pts). Explain how you know for the additional (2 pts). Using complete sentence for (1 pts)
(5,2) is a solution to the equation 2x + 3y = 10.
Answers
answer (in words)
FALSE. the coordinate pair (5, 2) is not a solution to the equation [tex]2x+3y=10[/tex]. in order to figure out whether or not the statement is true or false, plug the [tex]x[/tex] and [tex]y[/tex] values from the coordinate pair (5, 2) into the given equation, [tex]2x+3y=10[/tex]. if both sides of the equation end up equal, the coordinate pair is a solution to the equation. if not, the coordinate pair is not a solution to that equation.
(i hope i explained that well enough, i'm better at explaining it algebraically as opposed to putting it into words lol)
answer (algebraic/steps for solving)
first, plug in 5 for [tex]x[/tex] in the equation [tex]2x+3y=10[/tex].
[tex]2x+3y=10[/tex] ⇒ [tex]2(5)+3y=10[/tex]then plug in 2 for [tex]y[/tex].
[tex]2(5)+3y=10[/tex] ⇒ [tex]2(5)+3(2)=10[/tex]now your equation is [tex]2(5)+3(2)=10[/tex]. all that's left to do is to simplify. you can do this in whatever order you'd like, but i'll start with multiplying 2 · 5.
[tex]2(5)+3(2)=10[/tex] ⇒ [tex]10 + 3(2) = 10[/tex]multiply 3 · 2.
[tex]10 + 3(2) = 10[/tex] ⇒ [tex]10 + 6 = 10[/tex]add 10 + 6.
[tex]10 + 6 = 10[/tex] ⇒ [tex]16=10[/tex]16 and 10 are not equal, therefore (5, 2) is not a solution to the equation [tex]2x+3y=10[/tex]. in order for a coordinate pair to be the solution to an equation, both sides of the equation need to end up equal after solving and simplifying.
i hope this helps! have a great rest of your day <3
Which graph depicts the path of a projectile?
Answers
Answer:
The second option.
Answer:
its B
Step-by-step explanation:
The measures of the angles of a triangle are shown in the figure below. Find the
measure of the largest angle.
Answers
Rebecca's window store made a mosaic for the community center. The mosaic had a 7 × 7 array of different color square tiles. If each tile is 3 1/2 ft long, what is the area of the whole mosaic?
Answers
Answer:
600 1/4 ft²
Step-by-step explanation:
Window is a 7 * 7 square array
Length per tile = 3 1/2 ft long
Dimension of entire array :
3 1/2 * 7 by 3 1/2 * 7
7/2 * 7 by 7/2 * 7
49/2 by 49/2
Recall : Area of a square = a² ; where a = side length
Area of entire array :
49/2 * 49/2 = 2401 / 4 = 600 1/4 ft²
Cristian brought d starbursts to school and combined them with Angel's j starbursts. He then split them equally among 8 friends. Write an expression to represent the situation.
Answers
Answer:
(d+j) ÷8
Step-by-step explanation:
What is the sum of 10.347+4.178=
Answers
Answer:
The answer is 14.525
Step-by-step explanation:
10. 347
+ 4. 178
_________
14 . 525
Thus, the answer is 14.525.
Which of these factored expressions are equivalent to 15x+45? Select all that apply
A-3(5x+15)
B-5(3x+9)
C-15(x+3)
D-15(x+45)
Answers
Answer:
A, B, C
Step-by-step explanation:
15x+45
3 (5x + 15)
5(3x +9)
15(x + 3)
0.0000056 rewritten as a single digit
times a power of ten becomes:
Answers
Answer:
5.6× 10^ -6
.......................
Which number line shows point M at 4/3?
Answers
Answer:
D
Step-by-step explanation:
going to the number "4" 3 dots down is 4,3
Find the area of the isosceles triangle
Answers
Answer:
could you add the picture? then i will edit my answer to give you the actual answer
Step-by-step explanation:
What is the value of x?
Enter your answer in the box.
mm
Answers
Answer:
1938
Step-by-step explanation:
Can Someone help me out
Answers
Answer:
D 0.9988
Step-by-step explanation:
In ΔPQR, the measure of ∠R=90°, PQ = 5.7 feet, and RP = 3.8 feet. Find the measure of ∠P to the nearest tenth of a degree.
Answers
Answer:48.1897 = 48.2
Step-by-step explanation: cos P= 3.8/5.7
P= cos-1 (3.8/5.7)
P=48.1897 = 48.2