Answer:
It will take 1.6 hours for the two trains to be 336 miles apart.
Step by step explanation:
Given that:
Speed of eastbound train = 95 miles per hour
Speed of westbound train = 115 miles per hour
Combined speed = 95+115 = 210 miles
Distance = 336 miles
[tex]Speed = \frac{Distance}{Time}\\\\210 = \frac{336}{Time}\\\\Time = \frac{336}{210}\\\\Time = 1.6\ hours[/tex]
Hence,
It will take 1.6 hours for the two trains to be 336 miles apart.
I WILL GIVE BRAINLIEST. HURRY PLEASE
Answer:
Concept: Linear Algebra
Let us pick -5 and -4 which are one unit apart.We will find the difference by finding the slope: -3-(-11)/-4-(-5)= 8 Next for 2 units apart we will choose 1 and 3We do the same thing: 53-37/3-1= 16/2=8 Next we will pick something 2 units apart. Let's pick 0 and 3 Hence we will do the same: 53-29/3-0= 24/3=8No matter what difference we pick, whether that be one, two or three units, the difference is the same and consistent.Rate brainlist and drop a followhelp me find the answer lol
Answer:
First/Top graph.
Step-by-step explanation:
First, we need to solve the inequality for n:
-6n + 5 < 11 (Given)
-6n < 6 (Subtracted 5 on both sides)
n > -1 (Divided -6 on both sides)
NOTE: Whenever you multiply or divide by a negative number when dealing with inequalities, the sign switches.
Now that we know that n > -1, we need to look for a graph that has an open circle on the point -1 and goes in the right direction.
Therefore, the first graph is the correct answer.
write a function G whose graph represents the indicated transformation of the graph f
[tex]f(x) = \frac{2}{3} {x}^{2} + 2[/tex]
vertical stretch by a factor of 3
Answer:
[tex]G(x) = 2x^2+6[/tex].
Step-by-step explanation:
The given function is
[tex]f(x) = \frac 2 3 x^2 +2[/tex]
On vertical stretch by a factor of 3, the new function G(x) is
G(x) = 3 f(x)
So, [tex]G(x) = 3 \times ( \frac 2 3 x^2 +2)= 2x^2+6[/tex]
Hence, the required function is [tex]G(x) = 2x^2+6[/tex].
5x - 3(x - 2) - x math and stuff
Answer:
x + 6
Step-by-step explanation:
5x-3(x-2)-x
5x-3x+6-x
5x-3x-x+6
x+6
The equation modeling the population growth of a small town is P(t)=30000(1.02)^t, where P represents the population, and t represents the years from now. What is the approximate population change that occurs between 2 years from now and 10 years from now.
Answer:
5358
Step-by-step explanation:
The equation modeling the population growth of a small town is given as:
P(t)=30000(1.02)^t
When t = 2
P(2) = 30000(1.02)^2
P(2) = 31212
When t = 10
P(10) = 30000(1.02)^10
P(10) = 36569.8326
The approximate population change that occurs between 2 years from now and 10 years from now is calculated as:
= P(10) - P(2)
= 36569.83259984272 − 31212
= 5357.8325998
Approximately ≈ 5358
What is the value of b? 10 ( 1 + 3b ) = -20
Answer:
b=-1
Step-by-step explanation:
10(1+3b)=-20
1+3b=-2
3b=-3
b=-1
-x+3=4 plz solve and Explain
Answer:
x=-1
Step-by-step explanation:
-x+3=4
-3 -3
-x=1
multiply by negative one to get rid of negative in front of x
x=-1
Answer:
here we have to bring the +4 into first part then -x in second part then it will be 3-4=x
then solve now -1=x
Lilliana is training for a marathon. She runs the same distance every day for a week. On Monday, Wednesday, and Friday, she runs 4 laps on a running trail and then runs 8 more miles. On Tuesday and Sunday, she runs 6 laps on the trail and then runs 4 more miles. On Saturday, she just runs laps. How many laps does Lilliana run on Saturday?
Lilliana runs ??? laps on Saturday.
Answer: 17 3/4
Step-by-step explanation: because yes
Answer:
Actualy 17 3/4 is incorrect ( she actualy ran 8 laps on saturday)
Step-by-step explanation:
I dont feel like typeing out my math but i am correct because I had this same question on my homework.
For question b, how is the answer is ㏒ₐ2 + 4(n-1)㏒ₐ3?
Please help me.
Answer:
[tex]T_n=(4-n)\text{log}_a(3)+\text{log}_a(2)[/tex]
Step-by-step explanation:
nth term of an A.P. is given by the explicit formula,
[tex]T_n=a+(n-1)d[/tex]
Here, 'a' = First term
n = number of term
d = common difference
For an A.P. given as,
[tex]\text{log}_a(54),\text{log}_a(18),\text{log}_a(6),....[/tex]
First term 'a' of the given A.P. = [tex]\text{log}_a(54),[/tex]
Common difference 'd' = [tex]T_2-T_1[/tex]
= [tex]\text{log}_a(18)-\text{log}_a(54)[/tex]
= [tex]\text{log}_a(\frac{18}{54})[/tex]
= [tex]\text{log}_a(\frac{1}{3})[/tex]
= [tex]-\text{log}_a(3)[/tex]
[tex]T_n=\text{log}_a(54)+(n-1)[-\text{log}_a(3)][/tex]
[tex]=\text{log}_a(54)-(n-1)\text{log}_a(3)[/tex]
[tex]=\text{log}_a(3^3\times 2)-(n-1)\text{log}_a(3)[/tex]
[tex]=\text{log}_a(3^3)+\text{log}_a(2)-(n-1)\text{log}_a(3)[/tex]
[tex]=3\text{log}_a(3)+\text{log}_a(2)-(n-1)\text{log}_a(3)[/tex]
[tex]=3\text{log}_a(3)+\text{log}_a(2)-n\text{log}_a(3)+\text{log}_a(3)[/tex]
[tex]=4\text{log}_a(3)+\text{log}_a(2)-n\text{log}_a(3)[/tex]
[tex]=(4-n)\text{log}_a(3)+\text{log}_a(2)[/tex]
Jose worked 8 days for a total of 58.4 hours. If he worked the same number of hours each day, how many hours did he work in a day?
Answer:
7.3 or 7 hours.
Step-by-step explanation:
So i divided 58.4 by 8. And got 7.3.
8 x (7) = 56. So, 58 - 56 = 2. Put the decimal up. Now, 8 x (3) = 24. So, now you should have 7.3. But you could round it to 7. Depends.
If another equation is graphed so that the system has no solution, which equation could that be?
y=-2(x-1/2)
y=-1/2(4x+2)
y=-x+1
y=-1/2x+2
Answer:
y=-2(×-1/2)
Step-by-step explanation:
...........
the roots of a quadratic function are -2 and -6
what are the two factors of the quadratic expression ?
x + 2 ; x - 2 ; x - 8 ; x + 8 ; x - 6 ; x + 6
Step-by-step explanation:
The factors are x + 2 and x + 6.
In some languages, every consonant must be followed by a vowel. How many seven-letter ‟words” can be made from the Hawaiian word MAKAALA if each consonant must be followed by a vowel?
Answer:
One. Kamala.
Step-by-step explanation:
At a little-known vacation spot, taxi fares are a bargain. A 56-mile taxi ride takes 63 minutes and costs $50.40 You want to find the cost of a 34- taxi ride. What unit price do you need?
Answer:
the unit price that required is $30.60
Step-by-step explanation:
The computation of the unit price that required is shown below
For one mile, the cost is
= taxi ride cost ÷ distance covered
= $50.40 ÷ 56
= $0.90
Now for the cost of 34 mile taxi ride
= Unit cost × distance covered
= $0.90 × 34 mile
= $30.60
hence, the unit price that required is $30.60
We simply applied the above formula so that the correct cost could come
The same is to be considered
The distance between two cities on a map is 3.5 centimeters. The map uses a scale in which 1 centimeter represents 20 kilometers. What is the actual distance between these two cities in kilometers?
Record your answer and fill in the bubbles on your answer document. Be sure to use the correct place value.
Answer:
70 km
Step-by-step explanation:
[tex]\frac{3.5 cm}{x km}[/tex] = [tex]\frac{1cm}{20km}[/tex]
x = (3.5 cm × 20 km) ÷ 1 cm = 70 km
Answer:
70 km
Step-by-step explanation:
Im confusion? Could someone help me out.
Answer:
20cm
Step-by-step explanation:
for the triangle:
Perimeter = 30cm
a + a + a = 30
3a = 30
hence a = 10cm
For the rectangle:
Perimeter = 30cm
a + a + b + b = 30
but a = 10cm
10 + 10 + b + b = 30
20 + 2b = 30
2b = 10
hence b = 5cm
Perimeter of square = b + b + b + b
= 5 + 5 + 5 + 5 = 20cm
Identify the initial amount and the growth rate of the following:
Y = 250 (1+0.2)
Answer:
y = 300
Step-by-step explanation:
y = 250 (1+0.2)
First add the 1 and 0.2
y=250(1.2)
multiply 250 with 1.2
y = 300
:)
A cyclist travels 8 miles in 15 minutes.
What is her average speed in mph?
Answer:
0.53 mph
Step-by-step explanation:
A cyclist travels 8 miles in 15 minutes.
So the average speed is
=8/15 mph
=0.53 mph
Un camión admite en su interior 68,25 toneladas de patatas. Se cada caja de patatas pesa 22,75 Kg, ¿cuántas cajas de
patatas lleva el camión?
Answer:
El camión lleva 3000 cajas de patatas
Step-by-step explanation:
Proporciones
La capacidad de carga de un camión es de 68.25 Toneladas de patatas.
Como 1 tonelada es equivalente a 1000 Kg, expresamos la capacidad en Kg:
68.25 * 1000 = 68250 Kg
Cada caja de patatas pesa 22.75 Kg, luego el número de cajas que caben en el camión son:
68250/22.75 = 3000 cajas
El camión lleva 3000 cajas de patatas
________ Is the largest industry In the world.
O Technology
O Travel and tourism
O Manufacturing
O Education
I believe it’s travel and tourism. Hope this helps!
Answer:
Manufacturing is the largest industry In the world.
ZD, ZE, and ZF are the perpendicular bisectors of ABC. Use that information to find the length of each segment. Not that the figure is not drawn to scale.
Given:
ZD=44
ZA=87
FC=75
Find: ZC and AC
Answer:
wait I am solving. oklllllk
Answer:
ZA=85 ZB=85
Step-by-step explanation:
Answer question in the picture for brainliest and 10 points.
Answer:
D
Step-by-step explanation:
I know because I am smart. Trust me, it is D.
Its D
Step-by-step explanation:
pwease ik
Gracie is sharing 75 marshminnows among 4 of her friends. If each of her friends gets the same number of marshminnows, and she gives them as many marshminnows as
possible, how many are left for Gracie?
none
3
18
19
Answer:
18
Step-by-step explanation:
If you want to give people something, you need to divide the number that she is sharing (75) and the number of how many people she is sharing with (4).
So 75/4 = 18
So 18 marshminnows are left for Gracie.
PLssssss HELPPPPPPP will GIVE BRAINLIEST TO WHOEVER ANSWERS FIRST!!!
Mr. Mayhood had 4½ pounds of sand in a bucket. He put 2¾ pounds
of sand around his flower bed. How much sand did he have left in the
bucket?
Answer:
For addition 7 1/4. For subtraction 1 3/4. For multiplication 12 2/8. For division 1 7/11.
Step-by-step explanation:
What is the rate of change (slope) of the function?
X
y
-2
+1
-1
+2
+3
1
+4
2
+5
02
Answer:1
Step-by-step explanation:
Shelby purchases personalized stockings from Etsy for $15 per stocking. She has to pay $4.50 shipping. How many stockings can Shelby purchase for $50???
Answer:
3
Step-by-step explanation:
At the moment there are 54,210 tagged birds in a certain wildlife refuge. If exactly 20 percent of all birds in the refuge are tagged, what percent of the untagged birds must be tagged so that half of all birds in the refuge are tagged?
Answer:
37.5%
Step-by-step explanation:
OOF DIS COMPLICATED
I messed up big timeeeeeeeee
A lot of percent problem are very simple by just assuming values, especially in case the answer is also a percentage.
If there are 100 birds, 20% are tagged so 20 are tagged.
Out of the rest 80, 30 should be tagged so that a total of 50% are tagged.
30/80 = 37.5%
(The huge number given is unnecessary, just to make you waste your valuable time. Read the question again to realize that it is not needed.)
The percent of the untagged birds that must be tagged so that half of all birds in the refuge are tagged is 37.5%.
Untagged birds percentage:First step
Currently Tagged birds= 54210 ×20/100
Currently Tagged birds=10842
Second step
Untagged birds=54210 - 10842
Untagged birds=43368
Third step
Untagged birds percentage:
Untagged birds percentage=( 54210/2)-10842/43368
Untagged birds percentage=(27105-10842)/43368
Untagged birds percentage=16263/43368
Untagged birds percentage=0.375×100
Untagged birds percentage=37.5%
Inconclusion the percent of the untagged birds that must be tagged so that half of all birds in the refuge are tagged is 37.5%.
Learn more about percentage here:https://brainly.com/question/24304697
what is the area of a shaded region in the quarter circle
radius 12
Answer:
I guess that the shaded area is a quarter of a circle of radius 12 units.
Is easy to know that the area, will be equal to the quotient between the area of a circle of radius 12, and 4
We know that the area of a circle of radius R is:
A = pi*R^2
in this case, R = 12
pi = 3.14
Then:
A = 3.14*12^2 = 452.16
And a fourth of that is:
A/4 = (452.16)/4 = 113.04
The area of the shaded region is 113.04 square units
What is the value of u? 6.4u−5.1u=−3.25
Answer:
-2.5
Step-by-step explanation:
6.4u-5.1u=-3.25
1.3u=-3.25
u=-3.25/1.3
u=-2.5
If x and y are positive integers is x - y always positive explain
Note that x and y are nonzero integers. It means that x and y will always have same sign (both are either positive or negative, since they are nonzero). Hence, xy term is always positive.
Answer:
No, if y happens to be a larger integer than x, then the result will be negative.
Step-by-step explanation:
For example, lets say that x=4 and y=9, so x-y = 4-9 = -5.
But if we were to reverse it and make x=9 and y=4, then x-y = 9-4 = 5.