Subtract the faster speed:
721.6 - 8.4 = 713.2
Divide by 2 trains:
713.2/2 = 356.6
The slower train is going 356.6 miles per hour.
The faster train is going 356.6 + 8.4 = 365 miles per hour.
PLEASE HELPPPPPPPPPPPPPPPPPPPPPPPP ILL GIVE BRAINLIEST
Answer:
25
Step-by-step explanation:
asq+bsq=csq
49+576=625
Root 625=25
In triangle ABC, EG = x inches and BG = (5x - 12) inches. Triangle A B C has centroid G. Lines are drawn from each point to the midpoint of the opposite side to form line segments A D, B E, C F. [Figure may not be drawn to scale] What is EB? 2 inches 4 inches 8 inches 12 inches
Answer:
12. Hope this helps!!!
Step-by-step explanation:
Answer: Option D
Step-by-step explanation: edge
...*PLZ HELP* This goes for ALL answers >...Given the following word problems, write an inequality that models the problem, then solve and check.
.1. 18 people are in a swimming pool. The maximum capacity for the swimming pool is at most 54 people. How many people can still enter the swimming pool?
.2. Rob earns $6 for each umbrella he sells. He wants to make at least $66. How many umbrellas does he need to sell?
.4. An amusement park needs more than 15 roller coaster rides working before they can open. Currently, 6 rides are working. How many more rides need to be working for the park to open?
.5. A basketball coach wants less than 54 players at the basketball camp. Currently, 42 players are registered for the camp. How many more players can register?
Answer:
See below
Step-by-step explanation:
1.
18 + x ≤ 54x ≤ 54 - 18x ≤ 3636 more people at most2.
6x ≥ 66x ≥ 66/6x ≥ 11At least 11 umbrellas4.
6 + x > 15x > 15 - 6x > 9More than 9 rides5.
42 + x < 54x < 54 - 42x < 12Up to 12 more playersthe triangle is rotated 90° clockwise around the point (0,0) what will be the coordinates of the image of point L after rotation
Answer:
help please i need helppppp
A swimming pool is 30 feet wide and 50 feet long. If it is surrounded by square tiles, each of which is 1 foot by 1 foot, how many tiles are there surrounding the pool?
Answer:
164 tiles
Step-by-step explanation:
Per the above details, we will require tiles along all the sides of the swimming pool ,hence the circumference of the pool is denoted as;
= 2(wide + long)
Wide = 30 feet
Long = 50 feet
Circumference = 2(30 + 50)
Circumference = 2(80)
Circumference = 160.
It means that minimum of 160 tiles of 1 ft length is required, however, we will also require tile on each of the corners(4), total equals
= 160 + 4
= 164 tiles
A total of 164 tiles are there surrounding the pool.
Click the picture which is the correct answer?Make sure the answer is actually right really need help !
Write the equation of the line that goes through (2, 1) and is PARALLEL to 4x - 2y = 3 pls help asap! i have more questions like this also if someone could help me out
Answer:
Step-by-step explanation:
4x-2y=3
Get into y=mx+b
-4x on each side
Then divide by -2
y=2x- 1.5
Now if a line is parallel to another line the slope will be the same. If perpendicular the slope will be the negative reciprocal. As you said it is parallel the slope is 2.
y = mx+b
y = (slope)x + y-intercept
y= 2x + 1
Sorry if it is wrong but I hope it is right
I am so confused, I think that is D, xD
Answer:
it is D.... PERIODT
Step-by-step explanation:
Carlo and Helen spend the same amount of money on art supplies. Carlo buys 4 glue
sticks and spends $3 on glitter. Helen buys 2 glue sticks, and she spends $3.75 on tape
and $2.75 on paint. What is the cost, x, of each glue stick?
Since we don't have a total cost we will write an equation that will allow us to find the cost of x. The equation is 4x= 2x + $3 + $3.75 + $2.75. Now that we have our equation we are going to start by adding 3, 3.75, and 2.75. When added together, they come out with a total of 9.5. Now the equation becomes 4x= 2x + $9.50. Since we have our new equation we are going to subtract 2x from both sides of the equation. We now have the equation 2x= $9.50. Finally, you will divide both sides by 2. This leaves us with the final outcome x= $4.75. This means that one glues stick cost $4.75. Let's check by substituting $4.75 as the value of x in the expressions 4x is Carlo's total and 2x + $3 + $3.75 + $2.75 is Helen's total. First we do 4x, 4 multiplied by 4.75 equals 19, so Carlo spent $19 on art supplies. Now we do 2x + $3 + $3.75 + $2.75, which is 9.5 added to 9.5 and equals 19. So Helen spent $19 on art supplies. This proves that the cost of one glue stick, x, is equal $4.75.
Select True or False. (1 point) The expression 3x − 4(2x − 5) is equivalent to the expression 20 − 5x. True False
Answer:
yes
Step-by-step explanation:
because of the way this is put the result simplified would be 3x-8x-20
3-8=-5
so the answer is 20-5x
x=0.25 btw
Carrie wants to conduct a randomized experiment on 50 articles of her dirty clothing to see if detergent A or detergent B cleans better. Which of the following best describes the method for randomization using slips of paper within this experiment?
A. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 slips of paper to wash with detergent A and the remaining slips to wash with detergent B.
B. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 of them. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
C. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Carefully place the slips of paper in a stack and choose the top 25 slips of paper. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
D. Label each article of clothing with a number from 1 to 50, and write those numbers on different-sized slips of paper. Use large slips for pants, medium-sized slips for shirts, and small slips for shorts. Shuffle the slips of paper and choose 25 slips of paper. The numbers on those slips will represent the items that will be washed with detergent A and the remaining items will be washed with detergent B.
E. Label each article of clothing with a number from 1 to 50, and write those numbers on identical slips of paper. Shuffle the slips of paper and choose 25 of them. The numbers on those slips will represent the items that will be washed with detergent A. Replace those slips and shuffle all 50 slips again and choose 25 slips again. The numbers on those slips will represent the items that will be washed with detergent B.
Answer:
b
Step-by-step explanation:
Because if it has to be random then you wouldn't know what 25 numbers you were going to pull out.
What’s the value of y?
Answer:
c. 19
Step-by-step explanation:
This model is describing a function. You put in a number for x, in this case, the input of 7 on the side. You solve the equation with that x-value to get a y-value/output.
x=7
y=3x-2
y=3(7)-2
y=21-2
y=19
Select the graph that matches the function y = 3x + 7.
Show for y
3x + 2y = 6
Step-by-step explanation:
3x + 2y = 6
-3x -3x
2y = 6 - 3x
/2 /2 /2
y = 3 - 1.5x
5x <10 what is the answer? Soo easy
Answer:
The answer is x<2
Step-by-step explanation:
First, divide both sides by 5
5x/5 < 10/5
x<10/5
x<2
yxyxyxyxy simplified
Answer:
5y * 4x or 5y4x
Step-by-step explanation:
:)
it takes Ryan 1/5 hour to bike home from school. his biking speed is 10 mph
how far apart are the school and his house
what is the solution to the equation represented by the model below?
x= -14
x= -2
x= 2
x= 14
Answer:
C
Step-by-step explanation:
On the left, we have 3 positive x bars and 8 1s.
Hence, the left can be represented by the following expression:
[tex]3x+8[/tex]
On the right, we have 4 positive x bars and 6 1s.
Hence, the right can be represented by the following expression:
[tex]4x+6[/tex]
The two are equivalent. Therefore:
[tex]3x+8=4x+6[/tex]
Solve for x. Subtract 6 from both sides:
[tex]3x+2=4x[/tex]
Subtract 3x from both sides:
[tex]2=x[/tex]
Flip:
[tex]x=2[/tex]
Hence, our answer is C.
Answer:
kelvin is right lol
Step-by-step explanation:
Will the following list have a large or small Standard Deviation?
42, 1, 793, 20, 500, 1000, 127, 900, 382, 99
A. Large
B. Small
C. Not Enough Evidence Given
Answer:
large
Step-by-step explanation:
Answer:
A. Large
Step-by-step explanation:
PLEASE HELP! IT'S DUE TODAY!
Answer:
25 ft
Step-by-step explanation:
5x = 10² ⇒ x = 20
h = 20 + 5 = 25 ft tall
3(x-2)+2(4x-1) is my question plz answer quick
Answer:
11x - 8
General Formulas and Concepts:
Pre-Algebra
Distributive PropertiesAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define expression
3(x - 2) + 2(4x - 1)
Step 2: Simplify
Distribute: 3x - 6 + 8x - 2Combine like terms (x): 11x - 6 - 2Combine like terms (Z): 11x - 8700,000,000+60,000,000+8,000,000+90,000+2,0000+50+4
Answer:
768,092,054
Step-by-step explanation:
700,000,000+60,000,000+8,000,000+90,000+2,000+50+4
The easiest way to solve is to put the numbers in every place value they go in. So, the answer would be...
768,092,054
Hope this helps! Have a nice day :D
The State Fair charges $25 for admission and $1.25 for each ride. You go to the park
with a total of $40. How many rides are you able to ride?
A.12
B.13
C.14
D.15
Answer:
12 Rides
Step-by-step explanation:
After you pay $25 for admission you only have $15 left. If you multiply 1.25 × 12 you get 15.
Answer: A. 12
Step-by-step explanation:
40 - 24 = 15
15/1.25 = 12
Hope this helps :)
How many moles are in the 500.0g lump of coal (which is made of carbon) that you received in your Christmas stocking last year?
How many carbon atoms are in this 500.0g lump of coal?
Answer:
Number of moles = 41.67 (Approx)
Number of carbon atom = 250.97 x 10²³ (Approx)
Step-by-step explanation:
Given:
Amount of carbon = 500 g
Find:
Number of moles
Number of carbon atom
Computation:
Number of moles = 500 / Atomic number of weight
Number of moles = 500 / 12
Number of moles = 41.67 (Approx)
Number of carbon atom = Number of moles x Avogadro number
Number of carbon atom = 41.67 x 6.023 x 10²³
Number of carbon atom = 250.97 x 10²³ (Approx)
this is an identifying functions lesson someone please help
- If the exterior angle of the triangle measure 133°, and its remote interior
angles measure x° and (2x-5)°, what is the value of x?
a. x = 61.7°
b. x = 133°
c. x = 47°
d. x = 46°
Answer:
D
Step-by-step explanation:
Mathematically;
the exterior angle is the sum of the two remote interior angles
Thus;
x + 2x-5 = 133
3x-5 = 133
3x = 133 + 5
3x = 138
x = 138/3
x = 46
use the line to approximate the rate of change for the parabola between x=1 and x=2
Answer:4
Step-by-step explanation:
Vanessa deposited money into a bank account that earned 1.25% simple interest each year. After 1/2 year, she had earned $5.00 in interest on the account.
No other money was deposited into or withdrawn from the account.
How much was her initial deposit?
Answer:
800
Step-by-step explanation:
Just took the quiz
I NEED HELP! I AM THE WORST AT MATH
Jonah is playing a video racing game called Checkpoint. The speed of Jonah’s car is recorded four times during one lap. At the first checkpoint, his speed is 80 miles per hour. At the second checkpoint, his speed has reduced by 5%. At the third checkpoint, Jonah’s speed has increased by the speed from the previous checkpoint. At the fourth checkpoint, his speed decreased by 20% compared with the third checkpoint. What is Jonah’s net change in speed between the first and fourth checkpoints?
A. 4
B. -4
C. 15
D. -15
Answer:
Its -15 or D
Step-by-step explanation:
Answer:
D. -15
Step-by-step explanation:
5. Two sides of a right triangle are 8 inches and 12 inches. What is the length of the Hypotenuse
Answer:
19.7ft
Step-by-step explanation:
o^2+a^2=h^2
\dpi{100} h^{2}=(10ft)^{2} +(17ft)^{2}
h^2=100ft^2+289ft^2
h=389ft^2−−−−−√
→19.7ft
Answer:
Step-by-step explanation:
a^2 + b^2 = c^2
where a and b are the legs of the triangle and c is the hypotenuse
so 8^2 + 12^2 = c^2
64 + 144 = c^2
208 = c^2
take the square root of both sides
c = 14.422