How do I solve this?

How Do I Solve This?

Answers

Answer 1

Answer:

100 miles.

Step-by-step explanation:

The combined speed of the 2 trains = 38 + 42 = 80 mph.

The time taken  before they crossed = 15:35 - 14:20

= 1:15 = 1.25 hours

Speed = distance / time, so

80 = distance / 1.25

Distance = 80 * 1.25

100 miles.

Answer 2

Answer:

100 miles

Step-by-step explanation:

A -----------P------------------ B

tom start at 14:20 with speed of 38mph

ben with speed 42mph

meeting time is 15:35

time difference is 75 min = 75/60 = 1.25 hours

distance travelled by tom is AP

AP = v * t

= 38 * 1.25

=  47.5 miles

distance travelled by ben is BP

BP = v * t

= 42 * 1.25

= 52.5 miles

distance between two cities is AB = AP + PB

= 47.5 + 52.5

= 100 miles


Related Questions

need help with this part

Answers

Answer:

1. 42 people can be seated

2. 16 tables should be used.

Step-by-step explanation:

Part 1:

Since we are given the function, p(n) = 4n + 2, we need to plug in 10 to "n." This is because "n" represents the number of tables as stated on the top of the pciture. And "p(n)" represents the number of people that can be seated.

p(n) = 4(10) + 2

p(n) = 40 + 2

p(n) = 42

Part 2:

For this question, since we are given 65 as the total number of people that can be seated, we would plug in 65 in "p(n)", to result in the following equation.

p(65) = 4n + 2

Then solve the equation and use the property of inverse operation.

65 = 4n + 2

65 - 2 = 4n + 2 - 2

63 = 4n

63/4 = 4n/4

15.75 = n

Although we're given 15.75 as the number of tables that should be used, we can't really have a 0.75 of a table, so we would round 0.75 to 1.

15 + 1 = 16

16 tables are required.

On a farm, there are 75 pigs, 18 horses, 130 cows, and 25 chickens.
Find the ratio of the number of cows to the total number of animals.
A) 25 : 248
B) 65: 124
C) 75 : 248
D) 9: 124

Answers

Answer:

are u sure there are 130 cows?

Question 1 Draw a line through the point (−2,−2) with a slope of 1/4. Draw a line through the point (2, 0) with a slope of 1/4.

Answers

Answer:

line1:[tex]y=\frac{1}{4}x-\frac{3}{2}[/tex]

line2:  [tex]y=\frac{1}{4}x -\frac{1}{2}[/tex]

Step-by-step explanation:

Find the value of x.


M1= 3x + 7 and m5 = 25

Answers

Answer:

x=9

Step-by-step explanation:

m5=m1 so

25=3x+7

18=3x

x=9

Which situation is an example of an observational study?

Answers

Answer:

D- Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen.

Step-by-step explanation:

The situation is an example of an observational study is "Recording the reaction time of participants in a study who were asked to press a button as soon as they see a certain picture on a screen:.

What is an observational study?

When researchers monitor the effect of a risk factor, diagnostic test, therapy, or other intervention without attempting to influence who is or is not exposed to it in observational studies.

For example: Consider someone standing on a popular street in a New York neighborhood asking passers-by how many dogs they have, then analyzing the data to see if more pet food businesses are needed in the area.

As we know that in an observational study, the sample whose test/survey is been taken is completely random.

Therefore, the situation that is an example of an observational study is " Having customers fill out a questionnaire about their favorite brand of toothpaste".

Learn more about Observational Study here:

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pls help ill give brainliest ​

Answers

Answer:

4

Step-by-step explanation:

-5g -6

Let g= -2

-5 (-2) -6

Multiply

10 -6

4

Answer:

A. 4

Step-by-step explanation:

So, we have an equation with a variable (g), and they've given us the value of g to be -2. All we have to do at this stage is plug in the value of g into the equation.

-5g-6 (g=-2)

-5(-2)-6

10-6=4

Doing the math by plugging in -2, you would get your answer to be 4. Let me know if you see any errors, and if you have any further questions at all.

Which numbers are solutions to the equation 30=x2?

Answers

If you meant 2x, x is 15; if you meant x^2, the answer is the square root of 30

A researcher wants to estimate the likelihood that the baseball player will hit 2 home runs in a single game, given that the player hits a home run once in every 13 times at bat. Which type of study is most suitable for data collection in this situation?


A. experimental


B. census


C. survey


D. simulation

Answers

a its it hope it is okkkkkkk

Select the correct answer Which equation represents a line that is perpendicular to line MN?

Answers

Answer:

D. y = 4x - 6

Step-by-step explanation:

The equation that is perpendicular to the line MN should have a slope that when multiplied by the slope of line MN will result to negative one. Therefore,

Therefore,

m₁ × m₂ = -1

Using the 2 coordinates of MN let's find the slope,

(-7, 6)(5, 3)

Therefore,

m₁ = 3 - 6 / 5 - (-7) = -3 / 12 = - 1 / 4

The equation that represent a line perpendicular to the line MN is

y = 4x - 6 because the slope slope(m₂) is 4.

From our formula,

4 × - 1 / 4 = - 1

So, option D meets the requirement.

Answer:

D. y = 4x - 6

Step-by-step explanation:

400x2 pls answerrr I give brainliest to first question ahhh pkssskjwaaseeee granny answer

Answers

Answer:

800, just say my name and ill be there

Step-by-step explanation:

someone plz help - giving brainliest

Answers

Answer:

We know that,

[tex]a^{x} *a^{y} =a^{x+y}[/tex]

[tex]a^{-x} =\frac{1}{a^{x} }[/tex]

[tex]\frac{1}{a^{-x} } =a^{x}[/tex]

Let's solve now

[tex]\frac{3^{4} *5^{2} }{5^{8}*5*3^{-1} }[/tex]

[tex]\frac{3^{4}*3^{1} }{5^{-2} *5^{8} *5}[/tex]

[tex]\frac{3^{4+1} }{5^{-2+8+1} }[/tex]

[tex]\frac{3^{5} }{5^{7} }[/tex]

Therefore,

[tex]\frac{3^{5} }{5^{7} } = \frac{3^{w} }{c^{x} }[/tex]

So,

w = 5

c = 5

x = 7

Hope this helps you.

Let me know if you have any other questions :-)

10^2= ?
If you like Rollercoaster vids pls subscribe to SR Vlogs (Rollercoasters) on yt ❤️❤️

Answers

Answer:

100

Step-by-step explanation:

Ok I will sub!

PLZ HELP!!! WILL GIVE BRAINLIEST!!! State whether each conditional is true or false. Write the contra positive for the conditional and state whether the contrapositive is true or false.

1. If you ride a roller coaster, then you will experience sudden drops.
2. If you only have $15, then you can buy a meal that costs $15.65.

Answers

Step-by-step explanation:

TrueFalseHope it is helpful

Answer: question 1   If you are going over the top of a hill or rollercoaster quickly, you could feel your stomach drop or stomach sink. In actuality, it's probably the sensation of all your internal organs shifting slightly in your ribcage as your body defies gravity for a few seconds.

Step-by-step explanation: i do not know the 2 question im sorry mabye question 1 may help if not thaks ok bye :)

~~~~~~~~~~~~~~~~~~~~~~~~~~~

Answers

The answer is A.

Solution =
p(x) = 18x - 5x + 20
p(x) = 13x + 20

Find an equation of the line parallel to y= 1/3x +1 and that passes through the point (3,5)

Answers

So in order to find the line you’ll have to submit the point (3,5) and the slope into the point slope formula : y-y1= m(x-x1)

Y-5= 1/3(x-3)

Solve(turn to y intercept form):

Y-5= 1/3x -1



Find the slope of the line that passes through the points (4,1) and (-2.7).
What is the slope of a line perpendicular to this line?

Answers

Answer:

the slope=-1 the slope perp=1

Step-by-step explanation:

to find slope perpendicular you just have to multiply your slope by something and have it equal -1

for example

1/2x=-1

the slope perpendicular to a line with the slope of 1/2 would be -2 beacause 1/2x-2=-1

so the slope x perpendicular slope = -1

18(3+14) x 6(21+4)
With and without distributive property

Answers

Answer:

45900

Step-by-step explanation:

With Distributive Property:

18(3 + 14) • 6(21 + 4)

54 + 252 • 126 + 24

306 • 150

45900

Without Distributive Property

18(3 + 14) • 6(21 + 4)

18(17) • 6(25)

306 • 150

45900

=
. Consider the polynomial function p given by p(x) = 5x3 + 8x2 – 3x + 1. Evaluate the
function at x = -2.

Answers

Answer:

hope it helps u............

David made an error when determining the product of (–2.5)(–8.3).

Step 1: (–2.5)(–8.3) = (–8.3)(–2.5)
Step 2: = (–8.3)(–2) + (–8.3)(–0.5)
Step 3: = (–16.6) + (–4.15)
Step 4: = –20.75

In which step did David make his first error?

Answers

Answer:

step 3

Step-by-step explanation:

when you multiply an even amount of negative numbers you will always get a positive result thus the answe would be 16.6 + 4.15 as in positive numbers

In circle S with the measure of arc RT= 62°, find mRST.

Answers

Answer: think its 41

Step-by-step explanation:

Jack and Shelly have saved up a total of $29.00. Jack has saved 4 dollars more than 2/3 as much as Shelly. How much has Shelly saved?

Answers

Answer:

i think 15 if thats on your answer sheet

Step-by-step explanation:

Answer:15
Step-by-step explanation:
4+12/3)+×=29
4+2/3x+3/3x=29
4+5/3×=29
5/3x=29-4=25
5/3x=25
(5/3x) divided by (5/3)=25 divided by (5/3)
x=15

a lottery winner had to pay 30% of his winnings in taxes. how much did he win if he paid $75,000 in taxes?

Answers

you would have $22500

What is the written form of the decimal number 9549?​

Answers

Answer:

9.549

....... ..........

What is the square root of 120?

Answers

10.95

Simplified: √120 = 2√30

which of the following descriptions could represent the Venn diagram?

Answers

Answer:

Step-by-step explanation:

it will be c

The correct description represent in Venn diagram is;

''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''

What is Venn diagram?

Venn diagram is an illustration that uses circles to show the relationships finite groups of things.

Given that;

Number of family = 9

Number of pets = 4

Now,

In the Venn diagram;

Own pet (circle) contain in number of family (rectangle), that's mean every family has 4 own pet.

Thus, The correct description represent in Venn diagram is;

''Of 9 families, 4 own a pet The Venn diagram represents the families that own a pet.''

Learn more about the Venn diagram visit:

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Find the part Q for me please

Answers

Answer:

how. :. i don't know what gives me a example that

percent change of 10 and 24

Answers

Answer:

140%

Step-by-step explanation:

(24-10) / 10 = 14/10 = 140%

Answer:

140%

Step-by-step explanation:

A change from 10 to 24 represents a positive change (increase) to 140%.

Percent change = New-Old/Old x 100%

Percent change = 24-10/10 x 100% =

14/10 x 100 = 140% (increase)

Where 10 is the old value and 24 is the new value. In this case, we have a positive change (increase) of 140 percent because the new value is greater than the old value.

Two shops, Lidal and Oldi, sell the same brand of toilet rolls but with different package sizes.
Calculate the price per roll for each shop.
Write which shop is the best value for money in the comment box.

Answers

Step-by-step explanation:

Lidal : 9 rolls for £3.51

1 roll for 3.51/9 = £0.39

Oldi : 4 rolls for £1.52

1 roll for 1.52/4 = £0.38

so, Oldi has the best value for money when buying toilet rolls.

Tell whether the lines through the given points are parallel, perpendicular, or neither.
Line 1: (6, 5), (4,2)
Line 2: (-8, -1), (-2, 8)

Answers

Answer: Line 1: (2, 3) , (4, 12)

m = (12 - 3)/(4 - 2) = 9/2  This is the slope of the line

y = (9/2)x + b

3 = (9/2)(2) + b

3 = 9 + b

b = -6

y = (9/2)x  - 6

 

Line 2: (5, 10) , (14,8)

m = (8 - 10)/(14 - 5) = -2/9

this slope is the opposite sign, and inverse of the first equation's slope.  Therefore, the line is perpendicular.

y = mx + b

8 = (-2/9)(14) + b

8 = -28/9 + b

11.11 = b

y = (-2/9)x + 11.11

Step-by-step explanation: Hope this helps :)

Look at pic ! The length of each of two sides of a triangle is 15. The third side's length is 1572. Classify the triangle.

A) 30-60-90 scalene triangle
B) 30-60-90 isosceles triangle
C) 45-45-90 isosceles triangle
D) 45-45-90 scalene triangle

Answers

Answer The correct answer to the following question is not provided U need to do it your self lol jk answer is d

Step-by-step explanation:

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