Answer:
7.14 meters
Step-by-step explanation:
25 cm divided by 3.5 is 7.14
The required length of the road is given as 87.5 meters.
Given that,
A map of a city uses a scale of 1cm =3.5 meters. A road shown on the maps runs for 25cm how long is the road is to be determined.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
1 cm = 3.5 meters,
For a road of 25 cm on the map,
Length of the road = 25 × 3.5
Length of the road = 87.5 meters
Thus, the required length of the road is given as 87.5 meters.
Learn more about simplification here:
https://brainly.com/question/12501526
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Tyler sells 20 of his records (r) and has 74 left. Which equation best
represents this scenario?
Answer:
Equation: r-20=74
Step-by-step explanation:
So he started with 94. I got B
The class club has 20 members, 8 of which are girls. Write a ratio of girls to boys in simplest form
Answer: 2/3
Step-by-step explanation: 8 : 12 = 2 : 3 = 2/3
PLEASE HELP ITS URGENT. I’ll give lots of points who helps !! Please
Answer:
D:21
Step-by-step explanation:
Use the vertical angles equation.
4x + 13 = 5x - 8
Subtract 4x from 5x.
5x - 4x = x
13 = x - 8
Add 8 on both dies.
13 + 8 = 21
x = 21
JKLM has x that equals 21.
<JKLM and <LMJK equal 97 degrees.
Hope it helped!
Answer:
The answer is D:21
Step-by-step explanation:
make sure you use the right angles in the right order when solving for your answer...
4x+13=5x-8
5x-4x=x
13=x-8
add 8 on each side
x=21
Determine whether m(t)=(4/5)^t represents exponential growth or exponential decay. And Identify the percent rate of change.
Answer:
Step-by-step explanation:
exponential decay
rate of change: 20%
Applications of Probability Project: Zombie Apocalypse Adapted from "Are You Positive?" Learning Task in the Georgia Frameworks Zombies are on the loose! A group of researchers wants to be able to detect those who have contracted the zombie virus before they turn into zombies. Those who test positive will be quarantined for two weeks. If they show no signs of being a zombie, they will be freed. They have developed a simple test where they swab the person's ear (mouth would be too dangerous). They gathered 200 people of which 50 were known to be have the zombie virus. Of those who had the virus, 48 tested positive. Of those who did not have the virus, 135 tested negative 1. Based on the data presented above, do you think the test for zombieism is effective at detecting future zombies. Why or why not?
Answer:
Yes, it is a very effective test, having almost a 100% detection rate you wouldn't need much to improve upon except testing multiple times.
Solve the system of equations-2x+3y=-1 and 7x-8y=16 by combining the equations
Answer:
( 40 37 , − 39 37 )
Step-by-step explanation:
Simplify the expression 15-24divide3•2+13=
Answer:
[tex] \frac{ - 9}{19} [/tex]
Step-by-step explanation:
[tex] \frac{15 - 24}{3 \times 2 + 13 } = \frac{ - 9}{19} [/tex]
SOLVE:
24 - 24 : 3 + 1
Answer
17
its a division sign for : so 24-24 divided by 3 + 1
There are 90 passengers on a commuter flight from SFO to LAX, of whom 27 are traveling on business. In a random sample of five passengers, use the binomial model to find the approximate hypergeometric probability that there is at least one business passenger.
Answer:
0.8401 = 84.01% probability that there is at least one business passenger.
Step-by-step explanation:
Hypergeometric distribution:
The probability of x sucesses is given by the following formula:
[tex]P(X = x) = h(x,N,n,k) = \frac{C_{k,x}*C_{N-k,n-x}}{C_{N,n}}[/tex]
In which:
x is the number of sucesses.
N is the size of the population.
n is the size of the sample.
k is the total number of desired outcomes.
In this question:
Samples of 5, so [tex]n = 5[/tex]
90 passengers, so [tex]N = 90[/tex]
27 traveling on businnes, so [tex]k = 27[/tex]
Probability that there is at least one business passenger.
Either none are on business, or at least one is. The sum of these probabilities is 100% = 1.
Probability of none on business:
[tex]P(X = 0) = \frac{C_{27,0}*C_{63,5}}{C_{90,5}} = 0.1599[/tex]
Probability of at least one business passenger:
[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.1599 = 0.8401[/tex]
0.8401 = 84.01% probability that there is at least one business passenger.
What is (9 x 10^10) - (4 x 10^10)? I can't figure it out :(
Answer:
5*10^10
Step-by-step explanation:
(9 x 10^10) - (4 x 10^10) =
10^10 * (9-4) =
5*10^10
Pls mark Brainiest :)
(30 POINTS) Select the correct answer.
Which equation has no solution?
A. 1/2(8x + 6) -2x = -3(2x + 1)
B. -4(1/2x + 2) = -2x - 8 + 4x
C. 7(x + 2) - 3x = 2/3 (6x + 3)
D. -2x + 5 - 3x + 12 = -5(x - 3) + 2
Answer:
C. 7(x + 2) - 3x = 2/3 (6x + 3)
Step-by-step explanation:
ANSWER FROM PLATO
When solving an equation, if the variable terms cancel out leaving different numbers on each side of the equal sign, then the equation has no solution.
Consider the following equation:
7(x + 2) - 3x = 2/3 (6x + 3)
7x + 14 - 3x = 4x + 2
4x + 14 = 4x + 2
14 = 2
Therefore, the equation has no solution.
Which equation represents the following table?
Answer:
y=2x-4
Step-by-step explanation:
gdgdvdjsksevsg
Thank you if you help me
1
Bob is building a scale model of his bike. He wants his model to be as long as his bike.
If Bob's bike is 45 inches long, how long will his model be?
His model will be
Jinches long.
Answer:
45 inches long
Step-by-step explanation:
If the scale model is the same length as the bike then the scale model would be 45 inches long because the bike is 45 inches long.
Tim has 54 golf balls. He wants to put an equal number of golf balls in each of 9
baskets. How many golf balls will be in each basket?
CLEAR
SUBMIT
5 golf balls
6 golf balls
7 golf balls
8 golf balls
Por favor alguien explíqueme algo de esto, me urge contestarlas :(
1. Con base en el método de Gauss-Jordan, determine el o los valores para que el parámetro , del sistema de ecuaciones lineales mostrado:
2+3++2=34+6+3+4=56+9+5+6=78+12+7+=9
a) Posea una solución única
b) Sea inconsistente (no tenga solución)
c) Posea infinito número de soluciones que dependan de un parámetro
d) Posea infinito número de soluciones que dependan de dos parámetros
2. Determine todas las matrices que conmutan con =[310031003], es decir aquellas matrices que cumplen con =
3. Considere las matrices =[12−101−1]; =[0−11130] y =[010101010]. Determine la matriz que satisfacen la ecuación matricial siguiente: =+2
4. En una investigación de mercado se están estudiando los patrones de compra para tres productos competidores. Se ha determinado que el porcentaje de consumidores que cambiarían de un producto a otro después de un mes está dada por la matriz de transición tal que: =[0.800.200.050.050.750.050.150.050.90]. Donde representa el porcentaje de consumidores que cambian del producto al producto después de un mes. Por ejemplo, 12=0.20 significa que el 20% de los residentes que compran el producto 2 cambian al producto 1 después de un mes y 22=0.75 significa que 75% de los residentes que compraban el producto 2 continúan comprándolo después de un mes. Suponga que existe un total de 30 000 consumidores.
a. Interprete que significan cada uno de los elementos de la matriz (2.5 puntos).
b. Sea ⃗ una matriz de 3×1, donde es el número de consumidores que compran el producto . ¿Cuál es la interpretación de ⃗ ? ¿Y de 2⃗ =(⃗ )? (2.5 puntos)
c. Suponga inicialmente que ⃗ =[10 00010 00010 000]. Encuentre ⃗ para =5,10,15,20,25, 30,35,40,45 y 50. Describa el comportamiento de los vectores ⃗ conforme crece. ¿Cómo puede interpretarse esto?
5. Un ebanista fabrica sillas, mesas para café y mesas para comedor. Se necesitan 10 minutos para lijar una silla, 6 para pintarla y 12 para barnizarla. Se requieren 12 minutos para lijar una mesa para café, 8 minutos para pintarla y 12 para barnizarla. Son necesarios 15 minutos para lijar una mesa para comedor, 12 para pintarla y 18 para barnizarla. El centro de lijado está disponible 16 horas a la semana, el de pintura 11 horas a la semana y el de barnizado 18 horas. ¿Cuántas unidades de cada mueble deben fabricarse por semana de modo que las mesas de trabajo se utilicen a toda su capacidad?
Answer:
very long question of the brainley
A learning experiment requires a rat to run a maze (a network of pathways) until it locates one of three possible exits. Exit 1 presents a reward of food, but exits 2 and 3 do not. (If the rat eventually selects exit 1 almost every time, learning may have taken place.) Let Yi denote the number of times exit i is chosen in successive runnings. For the following, assume that the rat chooses an exit at random on each run.
Required:
Find the probability that n = 6 runs result in Y1=3,Y2=1, and Y3=2
Answer:
Find the probability that n = 6 runs result in Y1=3,Y2=1, and Y3=2
=0.823
Step-by-step explanation:
Multinomial distribution
p(y1;y2,y3…..yk) = (n!/y1!,y2!,y3!…y4!) x p1^y1 x p2^y2 x p3^y3 x pk^yk)
The rat chooses of the three exists at random:
p = 1/3
p(3,2,1) = 6! / 3! 1! 2! (1/3)^3 (1/3)^1 (1/3)^2
=20/243
=0.823
the radius of a circle is 9 M what is the circle's circumference use 3.14 for pi
Answer:
56.52 is the circumference. If the radias is 9 and the diameter is then 18.
Step-by-step explanation:
Answer:
56.52 is the circumference. If the radias is 9 and the diameter is then 18.
Step-by-step explanation:
[tex]\frac{1}{3}x+6=8[/tex]
15) A store is having a sale during which all outdoor furniture is 45% off the original price, p. If
the post-sale price of an outdoor furniture set can be calculated using the expression p
0.45p, which expression also represents the price?
Answer and explanation:
Given that there is 45% off original price of outdoor furniture and price is represented by p
Discount on original price of outdoor furniture = 45% of p=0.45×p=0.45p
Therefore post sale price(after discount) of outdoor furniture can be represented by (1-0.45)p=0.55p
SOMEONE PLEASE HELP QUICKLY!!! I’LL MARK BRAINLIEST
Answer:
x=18.5 y=14.2
Step-by-step explanation:
The unmarked angle for the top/x triangle is 109 (all angles add up to 180, 180-50-21=109)
Use cosine rule:
(a/sina)=(b/sinb)
(x/sin109)=(15/sin50)
(x/sin109)=19.58110934
x=18.51430261
The top-most angle of the bottom/y triangle is 71 (angles on a straight line are 180, 180-109=71)
The righthand angle of the bottom/y triangle is 19 (angles in a triangle add to 180, 180-71-90=19)
Use cosine rule again:
(a/sina)=(b/sinb)
(y/sin71)=(15/sin90)
y/sin71=15
y=14.18277863
Do this question me give brainliest
Answer:
9.5
Step-by-step explanation:
Because you know the sum of all the picture heights and their individual lengths, you can divide 57 by 6. Once you do that, you can get the answer 9.5, which means that the height of each frame is 9.5 centimeters. Hope this helps :)
HELP!! Please! Will Mark brainliest!!!
Laura is stuck in aisle six at the supermarket trying to decide which jar of peanut butter to buy she can buy a 16-ounce jar for $2.59 or 24- ounce jar for $3.29. Which jar has a lower unit price per ounce? Show your calculations and reasoning. REAL ANSWERS ONLY
9514 1404 393
Answer:
24-oz jar is lower cost per ounce
Step-by-step explanation:
The 16-ounce jar is almost $2.60. The 24-ounce jar contains half again as much peanut butter (16 +1/2·16 = 24). So, if the 24-ounce jar were the same price, it would cost half-again as much:
$2.60 +(1/2)2.60 = $2.60 +1.30 = $3.90.
The 24-ounce jar is priced considerably below that amount, so the 24-ounce jar has a lower price per ounce.
__
You could also view the 16-ounce jar as 2/3 the quantity of the 24-ounce jar. If it were the same price, that price would be about (2/3)$3.30 = $2.20. The 16-ounce jar is somewhat more than that, so costs more per ounce.
_____
Additional comment
For the estimates we did here, we needed prices that were divisible by 2 or 3. That involved adding a penny to the given price. So, the estimated equivalent price is off by a penny or so--not an issue in this case.
Note that we didn't actually need to find the per-ounce prices. We only needed to find the price for an equivalent number of ounces, which is much easier mental arithmetic.
ASAP PLEASE!!!!!!!!!!!
Alexis borrows money to buy a new phone. She plans to pay back $301 in 7 months by paying the same amount each month. The total amount she needs to pay back is $645.
7 301
x 645
If she pays the same amount each month, how many months will it take Alexis to pay back $645? Let x represent the number of months it will take Alexis to pay back $645 at the given rate.
X= ___ months
Alexis decides that she wants to pay back the $645 three months sooner. She will need to pay back more each month than she originally planned. How much does Alexis need to pay each month to pay back the money 3 months sooner?
$___per month
For Jason, it takes 3 hours to clean the attic. However, Sara takes 6
hours to complete the same job. If working together, how long would they take?
Answer:
2
Step-by-step explanation:
I think bc I just divide im guessing
- 5
4
=
2x - 3
5x -5
Answer:
x = 49/33
Hope this helps you! Even though there's no explanation... (I'm really bad at explaining, I'm just good at doing...)
Help me figure out x= 2, 6, 3.75
9514 1404 393
Answer:
x = 2
Step-by-step explanation:
The product of secant lengths to the near and far circle intercepts is the same for both secants:
3 · (3+5) = 4 · (4+x)
24 = 4(4 +x) . . . . simplify
6 = 4 +x . . . . . . . .divide by 4
2 = x . . . . . . . . . subtract 4
Do not round your answer. Type in just the number.
35 is 25% of
Answer:
8.75
Step-by-step explanation:
35 * 0.25 = 8.75
Hope it helps you in your learning process
Answer:
35×25/100
35×0.25
8.75
can i have brainliest if it helped
Stay safe from the virus
Step-by-step explanation:
Pleaseee help this is standard form
Y-3=2/3(x-2)
Formula
[tex]y - 3 = \frac{2}{3} (x - 2)[/tex]
Write in standard form
[tex]2x - 3y = - 5[/tex]