A passenger train leaves the train depot 2 hours after a freight train left the same depot. The freight train is traveling 20mph slower than the passenger train. Find the rate of each train, if the passenger train overtakes the freight train in threehours.

Answer:

10

Step-by-step explanation:

Answer:

if he is walking 10 miles then in 10 hours

Step-by-step explanation:

every 1 mile is 1 hour meaning every 10 miles is every 10 hours

Volume of a cube = l³

                              = (11 in)³

                              = 1331 in³

Surface area of cube = 6a²

                                   = 6 (11 in)²

                                   = 726 in²

-9 that is the answer

Answer:

3x - 3 + 5x = 4(2x -3)

collect like terms

3x + 5x - 3 = 8x - 12

8x -3 = 8x - 12

8x -8x = 3 - 12

it's null

the expression is an indefinite one

answer

6

explanation

10+(–4)

10–4

6

Answer:

D) 22

Step-by-step explanation:

B is the midpoint. The midpoint is the point in a line that breaks the line into two equal segments. With that info, we know that BC = AC.

So that means:

3x - 14 = x + 10

Now solve this equation.

3x - 14 = x + 10

+14. +14

3x = x + 24

-x

2x = 24

/2. /2

X = 12.

Now we know the value of x, insert the value into x + 10.

12 + 10 = 22

The answer is 22

Answer:

B) 12

Step-by-step explanation:

Because,

3x - 14 = x + 10

3x - x = 10 + 14

2x = 24

x = 12

Answer:

$450

Maybe this will help

Answer:

the answer for 8) answer= 8

Answer:

i think 8/25

Step-by-step explanation:

Answer:

-2 1/10

Step-by-step explanation:

Answer:

2x-10y=100

-8xy=100

xy=12

Answer:

2u≤8⇒u≤4

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

it's c because this is a false statement, which means that the original statement is also a false one

so it doesn't have any answer

Answer:

y=2x^2+4x−16

Step-by-step explanation:

Assume that the equation of the parabola is y=ax2+bx+c.

Since the parabola passes through the point (−4,0), then 0=16a−4b+c.

Since the parabola passes through the point (2,0), then 0=4a+2b+c.

Since the parabola passes through the point (1,−10), then −10=a+b+c. Thus, we have obtained the following system:

Solving it, we get that a=2, b=4, c=−16. Thus, the equation of the parabola is y=2x^2+4x−16.

The equation of a parabola is  y = -x² + x + 4 with x-intercepts at (-4,0) and (2,0) that passes through the point (1,-10).

A parabola can be represented by the equation:

y = ax² + bx + c

To find the equation of a parabola that has x-intercepts at (-4,0) and (2,0), we can set y equal to 0 and solve for x to find the x-intercepts:

0 = a(-4)² + b(-4) + c

0 = a(2)² + b(2) + c

Solving these equations for a and c gives us:

c = b(-4)

c = -2b

The parabola passes through the point (1,-10), we can substitute the values of x and y into the equation to solve for b:

-10 = a(1)² + b(1) + (-2b)

-10 = a + b - 2b

-10 = a - b

Substituting c = b(-4) into the equation gives us:

y = a x² + b x + b(-4)

Substituting a = -b and solving for b gives us:

y = (-b) x² + b x + b(-4)

y = -b(x² - x - 4)

Since the x-intercepts are at (-4,0) and (2,0), the coefficient of x², which is -b, must be positive. Therefore, we can set b = 1 to get the equation of the parabola:

y = -(1)(x² - x - 4)

y = -x² + x + 4

Thus, the equation of a parabola is y = -x² + x + 4.

Learn more about the parabola here:

brainly.com/question/4074088

#SPJ2

Answer:

A*B*C= 28

Step-by-step explanation:

A+B+C=20

1. A = 4(B+C)

2. B = 7C

3. C = C

----------------------

1.

A = 4( 7C + C )

A=4(8C)

A= 32C

---------------------

A+B+C=20

32C + 7C + C = 20

40C = 20

C = 20/40

C = 1/2

------------------------

A= 32(1/2) = 32/2 = 16

B= 7(1/2) = 7/2

C= 1/2

A*B*C = 16 * 7/2 * 1/2

A*B*C=  28

Answer:

B is subset of A

Step-by-step explain

I think in my college

Answer:

A) 23+x = 35

x = 12

Step-by-step explanation:

The question is asking you to find the equation and variable that best represents the scenario. We know that Emily had 35 dollars and had 7 dollars after paying for everything. This means that 7 plus what she spent must equal 35. However, we only know the cost of the ticket. So, add the cost of the ticket to the money left to figure out part of the equation. This equals 23 dollars. Therefore, whatever is left must be what she spent on lunch. So, the equation should look like 23 + x = 35. This is because the $23 is the ticket/the amount left and the x is the cost of lunch. Together they equal what Emily brought to the fair.

Answer:

4 sqrt(5)

Step-by-step explanation:

7 sqrt(5) - 3 sqrt(5)

These are like terms so we can subtract

4 sqrt(5)

Answer:

i got 1.28

Step-by-step explanation:

Answer:

128 questions

Step-by-step explanation:

75%•x=96

[tex]\frac{75}{100}[/tex]•x=96

x=96•[tex]\frac{100}{75}[/tex]

x=128

[tex] = 2 {x}^{2} - - 11 {x}^{2} + 10x + 15[/tex]

hope it helps

Answer:

2

Step-by-step explanation:

caulculator

Answer:

D.

therefore,A+B is equal to D

Answer:

Step-by-step explanation:

The slope intercept form:

Use two ordered pairs from the table and work out the equation.

Find the slope:

Find the y- intercept:

The equation is:

Correct choice is D

Slope

Equation in point slope form

Answer:

$ 1508.57 and please give brainliest

Step-by-step explanation:

The road around the park = 3 m wide,

and the circumference of the park = 132 m,

We have to find the cost of fencing

the outer boundary,

the rate = $10 per m

Step-by-step explanation:

As we know that the circumference

of a circle = 2 × 22÷7 × radius

2 × 22÷7 × radius = 132 m,

44 × radius = 132 m × 7,

44 × radius = 924 m,

radius = 924 ÷ 44 m

So, radius = 21 m ( smaller circle )

radius = 21 m + 3 m ( larger circle )

= 24 m

Usually, we fence on the borders means it's

the circumference of the larger circle

= 2 × 22÷7 × radius

= 44÷7 × 24 m

= 1056÷7 m

= 150.85 m

cost of fencing = $ 10/m

total cost = 150.85 × $ 10

= $ 1508.57

Answer:

19, 18, 15.5

Step-by-step explanation:

To solve this problem, you need to substitute the given values into the function.

b(x = -2) = 18 - 0.5(-2) = 18 + 1 = 19

b(x = 0) = 18 - 0.5(0) = 18 - 0 = 18

b(x = 5 ) = 18 - 0.5(5) = 18 - 2.5 = 15.5

Answer:

22.6

Step-by-step explanation:

102÷4 1/2=22.6

You can double check this by multiplying 22.6 with 4 1/2, which will give you the answer without it being rounded.

Answer:

7 words per minute

Step-by-step explanation:

63 words = 9 mins

9 mins = 63 words

1 min = 63 words/9

1 min = 7

She can type 7 words per minute

-Chetan K

Answer:

7 words per minute

Step-by-step explanation:

1. To find the unit rate (words per minutes), let's set up two ratios:

2. Now, let's solve for x to find how many words she can type per minute.

Step 1: Cross-multiply.

Step 2: Divide both sides by 9.

Therefore, Christine can type 7 words per minute.

Answer:

3 raise to power -100

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer:

6 outfits

Step-by-step explanation:

6 x 5 = $30 + $40 = $70

Answer:

1.

what is asked? how far did she walk to the church?

what are given?

- the total distance from her house to the church: [tex]\frac{3}{4}km[/tex]

- the distance she rode to the church on a tricycle: [tex]\frac{1}{8} km[/tex]

what operation should be used? subtraction

what is the number sentence?

[tex]\frac{3}{4} -\frac{1}{8}=\frac{5}{8} km[/tex]

solution: [tex]\frac{5}{8} km[/tex]

2.

what is asked? how much cake did they eat in total?

what are given?

- amount Catherine ate: [tex]\frac{1}{3}[/tex]

- amount Bernard ate: [tex]\frac{3}{8}[/tex]

what operation should be used? addition

what is the number sequence? [tex]\frac{1}{3} +\frac{3}{8}=\frac{17}{24}[/tex]

solution: [tex]\frac{17}{24}[/tex] of the cake was eaten

3.

what is asked? how many kg of ground meat was left?

what is given?

-  the total amount of meat there was at the beginning: [tex]10\frac{4}{5}[/tex]kg

- amount of meat used:[tex]3\frac{2}{3}kg[/tex]

what operation should be used? subtraction

what is the number sentence? [tex]10\frac{4}{5} -3\frac{2}{3} =7\frac{2}{15} kg[/tex]

solution: [tex]7\frac{2}{15}kg[/tex] of meat was left

4.

what is asked? how far did she travel from home to school?

what is given?

- how far Jasmine travels by bus: [tex]6\frac{3}{8} km[/tex]

- how far she travels by tricycle: [tex]5\frac{2}{5} km[/tex]

what operation should be used? addition

what is the number sentence? [tex]6\frac{3}{8}+5\frac{2}{5} =11\frac{31}{40} km[/tex]

solution: [tex]11\frac{31}{40}km[/tex] traveled

5.

what is asked? how many meters of cloth were used?

what is given?

- amount of cloth used for pants:[tex]2\frac{3}{4} m[/tex]

- amount of cloth used for a skirt: [tex]1\frac{9}{10} m[/tex]

what operation should be used? addition

what is the number sentence? [tex]2\frac{3}{4}+1\frac{9}{10} =4\frac{13}{20} meters[/tex]

solution: [tex]4\frac{13}{20} meters[/tex] of cloth was used

*I wasn't sure how detailed the number sentence should be, like if work needed to be shown, so here is the image of the work