Mathematics High School


Trains Two trains, Train A and Train B, weigh a total of 508 tons. Train A is heavier than Train B. The
difference of their weights is 440 tons. What is the weight of each train?

Answers

Answer 1
See the picture below
Trains Two Trains, Train A And Train B, Weigh A Total Of 508 Tons. Train A Is Heavier Than Train B. Thedifference

Related Questions

Factor completely, then place the factors in the proper location on the grid.

128x2 +96xy + 18y2

Answers

Answer:

2(8x+3y)*squared*

I need help with this please

Answers

Answer:

idek that looks like sum top tier math problem figure it out

Step-by-step explanation:

figure it out

What does the variable r represent in the equation 10r+4=8?
what does r represent in it?????
URGENTTTT

Answers

r =

I think “represent” is asking you to solve to a number.

10r + 4 = 8
Subtract 4 from both sides of the equation:
10r = 4
Divide both sides by 10:
r = 0.4

Check the math:

10(0.4) + 4 =
4 + 4 = 8

Juan's earnings vary directly with the number of hours he works. Suppose that he worked 10 hours yesterday and earned $160. How much will he earn today if he works 13 hours?

Answers

Answer: Juan’s earnings for today will be $208.

Explanation: Find the unit rate/how much he earns if he works 1 hour
160 divided by 10: 16
Which will mean: 16 dollars for working 1 hour.
Multiply 16 by 13 to find out how many he earns for working 13 hours
16 x 13 = 208
So Juan earns $208 if he works 13 hours
Goodluck! You can trust my answer
Mark me brainliest plsss

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Answers

Answer:

B and E

Step-by-step explanation:

-14 is the answer that is used to see if they are equal or not

A is incorrect because it equals -6.

B is correct because it equals -14.

C is incorrect because it equals 6.

D is incorrect because it equals -6.

E is correct because it equals -14.

X2-12x+21=-6 solve the quadratic by factoring

Answers

Answer:

(x-3)(x-9)

Step-by-step explanation:

first thing you need to do is move the -6 over. so we're going to add 6 to both sides (we add because it's negative 6 and we need 0 on the right side)

so you have: x^2-12x+27

now we need to come up with two numbers that add to -12 and multiply to 27.

the factors of 27 are 9 & 3 and 27 & 1. only 9 & 3 add to 12 so we are going to use those.

since the 12 is negative however, 9 and 3 should both be negative.

therefore we get: (x-3)(x-9)

*it doesn't matter which order you put them in!

A car is on a Ferris wheel with a radius of 20 feet. How far does the car travel over an angle of 2π3 radians? The car travels the distance of feet.

Answers

Answer: 21 feet, I think the first guy was wrong

2. What is the name of the ray that is opposite RP?

Answers

Answer:

its pr

Step-by-step explanation:

because im smart

Which of the following pairs of lines whose equations are given are perpendicular?

R 2x + 3y = 10

3x + 2y = 5

G. 2x - 3y = 10

H. 3x - 2y = 10

21 - Jy=5

I 2x - 3y = 10

2x + 3y = 5

Answers

H and is the correct answers

(45 points)


(1) It takes 4 eggs for 5 waffles. How many more waffles can 6 eggs make?

(2) A 1-lb. mix will make 32 biscuits. How many ounces of mix are needed for 24 biscuits?

Answers

Answer:

1. 5/4=1.25 egg for each waffle and 6*1.25=7.5

7.5-5=2.5

Need some answers with this question​

Answers

6+6+6-2+2 times 4 equals twenty Two 22

Answer:

4x+14

Step-by-step explanation:

Suppose that the population of deer in a state is 7,700 and is growing 3% cach year. Predict the population
after 5 years

Answers

Answer:

Future Value= 8,927

Step-by-step explanation:

Giving the following information:

Present Value (PV)= 7,700

Growth rate (g)= 3%

Number of periods (n)= 5 years

To calculate the future value (FV) of the population after 5 years, we need to use the following formula:

FV= PV*(1 + g)^n

FV= 7,700*(1.03^5)

FV= 8,927

What is the value of the expression below when w=3?
10w2 +9w-2

Answers

Answer:

85 if the "2" in 10w(2) is being multiplied.

But if not, then

115 if the "2" in 10w2 is an exponent.

Answer:

85

Step-by-step explanation:

10(3)2 + 9(3)-2

(30)2 + (27)-2

60+25=85

Ed stands on a moving walkway and gets from one end of the walkway to the other in 20 seconds. The walkway is 44 feet long. Which statements are true?
Every 8 seconds, Ed travels 32 feet.
Ed travels 11 feet every 5 seconds.
Ed travels 2.2 feet per second.
Ed travels 0.9 of a foot every 2 seconds.
Every 10 seconds, Ed travels 22 feet.

Answers

Answer:
Ed travels 2.2 feet per second.
Every 10 seconds, Ed travels 22 feet.
Ed travels 11 feet every 5 seconds.

Explanation:
Divid feet (44) by the seconds (20) to find out how far Ed can move in a second.
44 ÷ 20 = 2.2
Multiply the feet per second by the seconds in each option to see which is correct.

(I’ll go through them in order of how you listed them)
8 x 2.2 = 17,6 So first one is false
5 x 2.2 = 11 So it’s true
1 x 2.2 = 2.2 So it’s true
2 x 2.2 = 4.4 So it’s false
10 x 2.2 = 22 So it’s true

(Now you know how to do it!) :D

Write an equation in slope-intercept form for the line that passes through the
given point and is parallel to the graph of the given equation.
(-1, -2), 3x - y = 5

Answers

Make slope intercept
3x - y = 5
3x = y + 5
y = 3x - 5
Parallel = same slope
Slope = 3
Y = 3x + b
Plug in the point
-2 = 3(-1) + b
-2 = -3 + b, b = 1

Solution: y = 3x + 1

Answer:

y = 3x + 1

Step-by-step explanation:

the slope of the line of the given equation can bé find in this way: -a/b, where a is the number that multiplies x and b is the number that multiplies y

m = -3/-1 = 3

two parallel lines have the same slope, so also the line that we are a searching has m=3

now we can use this formula

y-y1 = m(x-x1) where y1 and x1 indicate the coordinates of the given point

y-(-2) = 3 (x-(-1)

y+2 = 3x + 3

y = 3x + 3-2

y = 3x + 1

Which scatterplot shows a nonlinear association?

Answers

Answer:

d

Step-by-step explanation:

it's the only one that isn't a trend

Answer:

A.

Step-by-step explanation:

It has a curve in it and linear is just like a strait line.

an inequality is written below

Answers

Answer:

x > 28

Step-by-step explanation:

[tex]\frac{x-4}{-3} <-8\\\\x-4>24\\x>24+4\\x>28[/tex]

the graph shows the height of a golf ball in meters when it is hit. the height is modeled by f(x)=-5x^2+50x, where x is time in seconds. How long is the ball in the air

Answers

Answer:

This may be wrong, but x = 10

Explanation:

-5^2 + 50x
-5x (x - 10)


-5x = 0
x = 0 (This answer doesn’t make sense)

x - 10 = 0
x = 10

Which x value are solution to both of the following inequality 128>x and x<82

Answers

Answer:

A is the answer they are all possible answers but the answer a is the best

Step-by-step explanation:

Answer:

All 3 of them

Step-by-step explanation:

A  B and C are correct

An experiment consists of spinning a spinner. Use the results in the table to find the experimental probability of the spinner not landing on red.
Red = 8
Blue = 7
Green = 9
Yellow = 6

A. 3/5
B. 11/15
C. 2/5
D. 4/15

Answers

Answer:

Probability(Not red) = 11 / 15

Step-by-step explanation:

Given:

Outcomes;

Red = 8

Blue = 7

Green = 9

Yellow = 6

Find:

Probability(Not red)

Computation:

Probability(Not red) = 1 - Probability(red)

Probability(Not red) = 1 - [Number of red/ Total]

Probability(Not red) = 1 - [8/(8+7+9+6)]

Probability(Not red) = 1 - [8/30]

Probability(Not red) = 1 - [4/15]

By taking LCM

Probability(Not red) = (15 - 4) / 15

Probability(Not red) = 11 / 15

Find two numbers that multiply to 16 and also add to -8

Answers

Answer:

-4,-4

Step-by-step explanation:

let the numbers be x and y.

x+y=-8

y=-x-8

xy=16

x(-x-8)=16

-x²-8x=16

x²+8x+16=0

x²+4x+4x+16=0

x(x+4)+4(x+4)=0

(x+4)(x+4)=0

x=-4,-4

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Answers

Answer:

A

Step-by-step explanation:

When multiplying a number with the same base, you will add the exponent values

8 +3 = 11

Answer:

8.8²⁴

Step-by-step explanation:

8.8 ⁸׳= 24 so hence 8.8²⁴ is the answer

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Answers

Rhombus Quadrilateral

An Attorney charges a fixed fee on $250 for an initial meeting and $150 per hour for all hours worked after that. Write an equation in slope-intercept form

Answers

Answer:

y = 150x + 250

-5(x + 1) s 30. What is a possible value of x?
help me pls

Answers

Answer:

the answer should be x= -7 hope this helps!

Does anyone know the answer to question 6?

Answers

Answer:

35

Step-by-step explanation:

EHIE HELP PLS
thank you so much you helped a lot , this is last problem

Answers

Step-by-step explanation:

I think it's 8 down again.

And 7 down.

8•7 = 56

• = Multiplication

Which function is best represented by this graph?
A y = 1/4 x + 8
B y = 1/4 x - 2
C y = 4x -2
D y = 4x + 8

⚠️Hurry⚠️

Answers

Answer:

B- y=[tex]\frac{1}{4}[/tex]x-2

Step-by-step explanation:

To look at the slope you can count over four and then up one and its at the next point.

Also, the place on the y-axis is at -2

So, b makes the most since :)

Hope this helps :) (if it does, brainliest??)

Uhm I also need help with this

Answers

Answer:

D. Perpendicular

Step-by-step explanation:

First answer A. Answer A is not even correct. Parallel are two or more lines that NEVER cross

Answer B is also not correct. Line segments are a line of specific length. These are two LINES. You can tell by the arrows on the edge of each line.

Both C and D can be correct. But the answer would be D. Here is why

Intersecting lines are two or more lines that cross. Yes these lines are crossing by perpendicular lines also cross. The difference is, intersecting lines can cross at any angle. Perpendicular lines have to cross at 90 degrees making 4 right corners.

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Answers

Answer:

i believe its 21.5

Step-by-step explanation:

Answer:

Volume= 360 feet³

Step-by-step explanation:

We have two shapes, a triangular prism and a rectangular prism.

Rectangular Prism: [tex]w=6, h=2, l=8, V=lwh[/tex]

So, the volume is 6×2×8=96 feet³

Triangular Prism: [tex]h=5.5-2=3.5, w=6, l=8, V=\frac{1}{2}lwh[/tex]

So, the volume is (5.5×6)÷2 ×8= 33×8=264 feet³

We have to combine the two volumes to find the volume of the whole shape. 96+264=360. So, the volume of the whole shape is 360 feet³

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