Answer:
(i) David ha empleado [tex]\frac{2}{3}[/tex] de la cartulina.
(ii) Angie ha empleado [tex]\frac{2}{7}[/tex] de la cartulina.
(iii) David ha usado más cartulina.
Step-by-step explanation:
El problema indica que David y Angie emplean una cartulina del mismo tamaño cada uno. David corta la suya en 3 pedazos iguales, mientras que Angie obtiene 7 pedazos iguales. Finalmente, cada uno emplea dos de sus pedazos. A continuación, respondemos a las preguntas del enunciado:
(i) ¿Qué fracción de cartulina ha usado David?
La fracción de cartulina empleada por David es igual a los pedazos utilizados divididos por el total de pedazos. Esto es:
[tex]x = \frac{2}{3}[/tex]
David ha empleado [tex]\frac{2}{3}[/tex] de la cartulina.
(ii) ¿Qué fracción de cartulina ha usado Angie?
Aplicando el mismo procedimiento del punto anterior, tenemos que:
[tex]x = \frac{2}{7}[/tex]
Angie ha empleado [tex]\frac{2}{7}[/tex] de la cartulina.
(iii) ¿Quién ha usado más cartulina?
La persona que ha usado la mayor cantidad de cartulina es aquella que tiene el menor denominador. Por tanto, David ha usado más cartulina.
What is the value of 16.43 – 1.043
Pls show the work of how you did it
There are 5 pencils in a pack.
Catalina has 2 packs. How many
pencils in all?
(unit)
Reese has 20 packs. How many
pencils in all?
(unit)
Answer:
Catalina has 10 pencils total. (2 x 5 = 10)
Reese has 100 pencils total. (20 x 5 = 100)
Answer:
1. 10 2. 100
Step-by-step explanation
5 x 2= 10
20x 5= 100
what is the speed limit in miles per hour (sign reads 55km/h) PLS HELP ASAP ILL MARK BRAINLIEST
Answer:
34mph
...............
Answer:
34mph ALSO TOP OF THE MORING LADIE
Step-by-step explanation:
Pls help is just need to find the equivalent expression
Answer:
15x+20y+5z
Step-by-step explanation:
Trust me.
Factoring Trinomials is the opposite of Multiplying two binomials together?
True or False
10 to the 9th power?
100000000 that's the answer
Answer:
1000000000
Step-by-step explanation:
All you had to do is 10 times 10 9 times if
solve for x: 3/4(12x-4)=12
Answer:
5/3
Step-by-step explanation:
Divide both sides by 0.75:
12x - 4 = 16
12x = 20
x = 20/12 = 5/3
factorise x ^ 4 + 1/x ^ 4 - 3
Answer:
Step-by-step explanation:
Add 1 and subtract 1, so that the expression won't change.
[tex]x^{4}+\frac{1}{x^{4}}-3=x^{4}+\frac{1}{x^{4}}-3 +1 - 1\\\\=x^{4}+\frac{1}{x^{4}} - 2 + 1\\\\= (x^{2})^{2} + (\frac{1}{x^{2}})^{2}- 2 *x^{2}*\frac{1}{x^{2}} - 1\\\\[/tex]
[tex]= (x^{2} -\frac{1}{x^{2}})^{2} - 1\\\\=(x^{2}-\frac{1}{x^{2}})^{2}- 1^{2}[/tex]
(a² - b²) = (a+b)(a - b)
Here a = x² - (1/x²) and b = 1
[tex]= [ (x^{2}-\frac{1}{x^{2}})+ 1 ] [ (x^{2} -\frac{1}{x^{2}} - 1 ][/tex]
Main needs 3 pound of birdseed to fill all the birdfeeder in her yard the store sells birdseed by the ounce how many ounce of birdseed does main need to fill the birdfeerders
Answer:
48 oz.
Step-by-step explanation:
1lb is 16 oz.
You multiply 3 by 16 and that gives you 48
3 x 16 = 48
Answer:
48
Step-by-step explanation:
HELP!!! Andre reads 2 1/2 pages in 1/4 hour. What is the complex fraction and unit rate?
Answer:
20
Step-by-step explanation:
2 1/2 = 5/2
5/2 x 4/1 = 20/1 = 20
(We are dividing fraction)
(keep change flip)
helpoo plsssss am stuck
Answer:
The median for 1 is **15**
Step-by-step explanation:
Answer:
1. 142. 16Step-by-step explanation:
1. 7, 13, 14, 14, 16 --> 13, 14, 14 --> 14
Result/Median : 14
2. 8, 10, 13, 16, 16, 17, 20, 20 -->
10, 13, 16, 16, 17, 20 -->
13, 16, 16, 17 -->
16, 16 --> You are left with two numbers, so you find their average.
16 + 16 = 32 / 2 = 16
Result/Median: 16
Hope that helps!
Which graph represents the student who rode fastest?
Answer:
Abby rode the fastest
Hope that helps!
Answer:
Abby rode the fastest.
Step-by-step explanation:
Eddie rode the second fastest, since they the second highest line. Greg rode second to last, and Michelle rode the slowest, since they have the lowest line.
Please help! Thank you.
Answer choices below:
A. Very weak
B. Moderately weak
C. Very strong
D. Moderately strong
Answer:
Step-by-step explanation:
es la d
it’s kinda hard to read soo
A lake near The Arctic Circle is covered by a thick sheet of ice during the cold winter months. When spring arrives, the warm air gradually melts the ice, causing it’s thickness to decrease at a rate of 0.2m per week. After 7 weeks, the sheet is only 2.4m thick.
Let y represent the ice sheets thickness (in meters) after x weeks.
Complete the equation for the relationship between the thickness a number of weeks.
Answer:
3.8
Step-by-step explanation:
0.2 x 7=1.4
1.4+2.4=3.8
A number line contains points Q, R, S, and T. Point Q is on the coordinate 4, R is on the coordinate 8, S is on the coordinate 9, T is on the coordinate 12. Find the probability that a point chosen at random on QT is on ST. Express your answer as a percent.
51.5%
37.5%
25%
44%
37.5% esa es la respuesta correcta
Answer:
37.5%
Step-by-step explanation:
What is the area, in square feet, of the trapezoid below?
Answer:
A=54
Step-by-step explanation:
A=a+b /2 h=8+13.6 /2/ ·5=54
Help please
Find the value of x. *
Answer:
Step-by-step explanation:
Answer:
[tex]x=\sqrt{10^{2}-y^{2}}[/tex]
Step-by-step explanation:
[tex]x^{2} +y^{2} =10^{2} \\x^{2} =10^{2}-y^{2}\\x=\sqrt{10^{2}-y^{2}}[/tex]
pls help no wrong answers
Answer:
angle dgc=90°
angle age=30°
to find=x
angle dgc=angle agb(by vertical opposite angle)
ege is a straight line.
angle age+angle agb+angle bgf=180°[straight line measure 180°]
30°+ 90°+x=180°
120°+x=180°
x=180°-120°
x=60°
ILL GIVE BRAINLIEST TO WHOEVER ANSWERS
A plain hamburger costs $5. Each additional condiment that is
added costs $0.30. Which of the following could be used to
determine, c, the cost for a hamburger with n number of
toppings?
A. c=5+0.3n
B. c=3+0.5n
C. c=(3n+5)0.3
D. c=(5.3)n
Answer:
A
Step-by-step explanation:
5+0.3n
i mean do you need explanation? i think it very obvious
the difference between a number and 7,multiplied by 8,is 24.
Answer:
X - 7 x 8 = 24
Step-by-step explanation:
Is your algebra expression
HELPHELPHELPHELPHELPHELPHELP
Answer:
the answer is 75
Step-by-step explanation:
225 ÷ 3
75
Answer:
75
Step-by-step explanation:
no.of candles he make in 3 hrs = 225
no. of candles he make in 1 hr = 225/3
= 75 candles
7x-4+8x=6x+8 abcdefghijklmnop
Answer:
x = 4/3
Step-by-step explanation:
7x − 4 + 8x = 6x + 8
Answer:
x=[tex]\frac{4}{3}[/tex]
Step-by-step explanation:
So the equation is 7x-4+8x=6x+8. All we need to do is simplify. On the left side, 7x+8x=15x, so 15x-4=6x+8. Now, we bring the 6x from the right side to the left. When you bring a term from one side to another, you change its sign. As of now, the sign of 6x is positive, so we make it negative and move it to the left side. The new equation is 15x-6x-4=8. Simplifying the left side gives you a new equation of 9x-4=8. Now we move the -4 from the left side to the right side. We change the sign so it becomes 4 and we move it to the right. The equation is now 9x=8+4. 8+4=12, so the final equation is 9x=12. Now we divide by 9 on both sides, giving us the unsimplified answer of x= [tex]\frac{12}{9}[/tex]. We divide the numerator and the denominator by 3 and we get our final answer of x=[tex]\frac{4}{3}[/tex].
Worth a lot of points!
Express the following equation in the form ax^2+bx+c=0:
(4a+3)^2=(a+5)(a−2)
Answer:
15a² + 21a + 19 = 0
Step-by-step explanation:
Given
(4a + 3)² = (a + 5)(a - 2)
(4a + 3)(4a + 3) = (a + 5)(a - 2 ) ← expand both sides using FOIL
16a² + 24a + 9 = a² + 3a - 10 ( subtract a² + 3a - 10 from both sides )
16a² - a² + 24a - 3a + 9 + 10 = 0 ← collect like terms
15a² + 21a + 19 = 0
Mr. K goes to the bank to withdraw some money. He requests that he only get $20 bills and $5 bills. Altogether, Mr. K got 30 bills. The total value of the money is $300. How many of each bill did Mr. K get?
Answer:
10 $20 bills and 20 $5 bills
Step-by-step explanation:
please help will be marking Brainliest
Answer:
A or b not to sure
Step-by-step explanation:
DUE SOON MATH HELP (please show work)
help if u can guys i’ll give u brainliest
Answer: the answer is 16 I think
Step-by-step explanation:
Answer: 16 inches
a^2+30^2=34^2
a^2+900=1156
-900 -900
a^2=256
Square both sides to cancel a^2
a=16
Hope I helped!
Evaluate the expression: 3x + 5 = ? when x = 2.
A. 8
B. 9
C. 10
D. 11
Then f(x) = 3x + 5
3 × 2 + 5
6 + 5 = 11 Ans. ( Opt. D )
Mr. Randell has wrenches in a toolbox. The total mass of the wrenches in the toolbox is 3 kilograms. Mr. Randell rakes out one wrench that has a mass of 350 grams. What is the mass in grams of the wrenches left in the toolbox?
The list shows the number of minutes that eight students spent on math homework last week. 22, 14, 24, 20, 36, 28, 43, 35What is the mean absolute deviation of the numbers
Given:
The data values are:
22, 14, 24, 20, 36, 28, 43, 35
To find:
The mean absolute deviation of the given numbers.
Solution:
We have,
22, 14, 24, 20, 36, 28, 43, 35
The measure of the given numbers is:
[tex]\overline{x}=\dfrac{\sum_{i=1}^{n} x_i}{n}[/tex]
Where, [tex]x_i[/tex] represents the observations and n is the number of observation.
So, the mean value of the given data set is:
[tex]\overline{x}=\dfrac{22+14+24+20+36+28+43+35}{8}[/tex]
[tex]\overline{x}=\dfrac{222}{8}[/tex]
[tex]\overline{x}=27.75[/tex]
The formula for is mean absolute deviation is:
[tex]M.A.D.=\dfrac{1}{n}\sum_{i=1}^{n}|x_i-\overline{x}|[/tex]
The mean absolute deviation of the given numbers is:
[tex]M.A.D.=\dfrac{1}{8}[|22-27.75|+|14-27.75|+|24-27.75|+|20-27.75|+|36-27.75|+|28-27.75|+|43-27.75|+|35-27.75|][/tex]
[tex]M.A.D.=\dfrac{1}{8}[5.75+13.75+3.75+7.75+8.25+0.25+15.25+7.25][/tex]
[tex]M.A.D.=\dfrac{1}{8}[62][/tex]
[tex]M.A.D.=7.75[/tex]
Therefore, the mean absolute deviation of the given numbers is 7.75.