There were some people on a train.
18 people get off the train at the first stop and 21 people get on the train.
Now there are 65 people on the train.
How many people were on the train to begin with?​

Answers

Answer 1

Answer:

62

Step-by-step explanation:

let there be X people in the beginning

so

X-18+21=65

X+3=65

X=65-3

X=62


Related Questions


I need help asap
Less then 5 minutes

Answers

Answer:

um well he would be well rested so he would score higher than others but I'm not sure on the exact number maybe around 90-100

Hello everyone, I'm feeling a bit generous today so here yall go.
2x2=
4x4x4=
2+5=

(14 points will be given.)
First one to solve all three gets 5 star rating, heart, brainliest.
Second to solve all three gets a 5 star rating, heart, and well points for answering ofc just as the first.

Answers

Answer:

4

64

7

Hope I helped

Answer:

2x2=4

4x4x4=64

2+5=7

Step-by-step explanation:

HAPPY HOLIDAYS :)

A right triangle is ____ a scalene triangle.
Always, sometimes, or never

Answers

Answer: Sometimes

Step-by-step explanation:

This is a very tricky question. We know that in an isosceles triangle, two sides are the same. Because of this, we know that the right angle is always 90 degrees, and the other sides would be 45 degrees each because all triangles add up to 180 degrees. A right triangle could also be scalene, meaning none of the sides are the same, for example a scalene triangle could have sides of 44, 46, and 90 degrees. Rest assured, a right triangle will never be equalateral. Hope this helps :) Merry Christmas

Rebecca buys a shirt for $38.
She finds out the shirt is 25% off
and there is 8% sales tax. If
Rebecca has $40, how much change
will she receive?

Answers

Answer:

$8.46

Step-by-step explanation:

This is assuming that the sales tax is applied on the pre discounted item.

MDOSMSIENEIDIENDJDJCJX

I need help I need the answer

Answers

Answer:

t ≤ 12/23

Step-by-step explanation:

-48t + 2 ≤ -71t + 14

You would need to get all the numbers on one side and all the variables on the other side.

-48t + 2 -2 ≤ -71t + 14 -2 → -48t ≤ -71t + 12

-48t + 71t ≤ -71t + 71t + 12 → 23t ≤ 12

23t ÷ 23 ≤ 12 ÷ 23 → t ≤ 12/23

Plz help! Will give brainliest!

Answers

That would be A hope this Helps :)

Answer:

D

Step-by-step explanation:

To divide the 2 fractions

• leave the first fraction

• change division to multiplication

• turn the second fraction upside down

[tex]\frac{11}{12}[/tex] × [tex]\frac{7}{5}[/tex]

= [tex]\frac{11(7)}{12(5)}[/tex]

= [tex]\frac{77}{60}[/tex]

= 1 [tex]\frac{17}{60}[/tex] → D

what is the surface area of this rectangular rectangular prism (pic attached)​

Answers

290 m2 you just have to add all of them

Mr. Hudson's bill when taking his family to a restaurant for dinner was $65. He used a discount card for 15% off and left a 20% tip on the original amount of the bill. Complete the statements to determine how much Mr. Hudson spent at the restaurant. The amount of Mr. Hudson's bill after the 15% discount was $ . Mr. Hudson left $ for a tip. Mr. Hudson spent $ at the restaurant.

Answers

Answer:

Amount of bill after discount = $55.25

Amount of tip left = $13

Total money spent at the restaurant = $68.25

Step-by-step explanation:

Original bill amount of Mr. Hudson = $65

Discount card value = 15% of the bill

Tip offered = 20% of the original amount

To find:

Amount of bill after the discount of 15%.

Amount of tip left.

Total amount spent in the restaurant.

Solution:

Let us apply the percentage here to find the values of total discount, total tip offered.

Discount = 15% of $65

[tex]\Rightarrow \dfrac{15}{100} \times 65 = \$9.75[/tex]

Amount of bill after discount = $65 - $9.75 = $55.25

Amount of tip left = 20% of $65

[tex]\Rightarrow \dfrac{20}{100} \times 65 = \$13[/tex]

Total money spent at the restaurant = Amount of bill after discount + tip offered = $55.25 + $13 = $68.25

The answers are:

Amount of bill after discount = $55.25

Amount of tip left = $13

Total money spent at the restaurant = $68.25

What is the value of s ?
Please help
No guessing

Answers

Answer:

s = 17

Step-by-step explanation:

use Pythagorean theorem a² + b² = c²

where a = 8

           b = 15

           c = s (which is unknown)

plugin values into the formula:

a² + b² = c²

8² + 15² = s²

s = √(64 + 225)

s = √289

s = 17

3) Write an equation of a
line that has a slope of -3
and goes throughh
the
point (-4, 6)

Answers

m = -3

point = (-4,6)

You need to put this in point slope form.

y - 6 = - 3( x + 4 )

distribute

y - 6 = -3x - 12

add 6 to 12

y = -3x - 6

answer : y=-3x-6

line passes through points (5, 8) and (10, 5). Line b is parallel to line a. what is the slope of line b?? ​

Answers

Answer:

-3/5

Step-by-step explanation:

Let's go from the point (5, 8) to the point (10, 5).  We can see immediately that x (the 'run') increases by 5 and y (the 'rise') decreases by 3.  Thus, the slope of the line connecting these two points is m = rise/run = -3/5.

Both of these lines have the slope -3/5, given that they are parallel lines.

Parallel lines r and s are cut by two transversals, parallel lines t and u. How many angles are alternate interior angles with angle 9?

Answers

Answer:

3

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Factor the following expression completely 16x^2-49

Answers

Answer:

(4x+7)(4x-7)

Step-by-step explanation:

15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:

Answers

Answer

the answer would be

D(5,-2).

Answer:

D(-6, 1)

Step-by-step explanation:

To determine the solution we can start by calculating the slope of AB;

A(-1, 4), B(2, -5)

m = -5 - 4 / 2 - (-1) = -9 / 3  = -3

Then CD, if to be perpendicular, should have the 'negative reciprocal' of the slope of AB. In other words it should have a slope of 1/3. We are given point C as (3, 4) so let's take each of the given options for point D, and find the slope using the two points. If the slope is 1/3rd then that  is the correct option.

Now I already know the answer, so instead of going through all the options I will just check the slope with the correct answer choice. You will find the slope to be 1/3rd;

C(3, 4), D(-6, 1)

m = 1 - 4/- 6 - 3  = -3/-9 = 1/3rd

Correct, as you can see

So your solution is option c

How much interest is earned in two years in a investment of 2,000 and the interest rate is 3%

Answers

Answer: $1,140

Step-by-step explanation:

2000 x .03 = 60

60 x 24 months = $1,140

help please!!!!!!!!!

Answers

Answer:

Angle 3= 37 degrees, Angle 2 = 143 degrees, Angle 4= 143 degrees

Step-by-step explanation:

Angle 3 is across from Angle 1 so they are equal to each other. Now to find Angles 2 and 4, cover angles 2 and 3 with your hand so you are just looking at 1 and 4, they are on a line. Lines are 180 degrees, so since angle 1 we know is 37 degrees, then 180-37= 143 degrees for angle 4. Now, 2 and 4 are opposites of each other, and share the same value of 143 (just like how we found angles 1 and 3 to be equal bc they are across from each other)

Which expression is equivalent to 12a + 8?
0 4(3a + 2)
04(3a + 8)
06(6a + 2)
06(6a + 8)

PLEASE help me thanks...

Answers

I’m pretty sure it’s the first one. 4(3a + 2)


4 x 3a = 12a
4 x 2 = 8

Gail has $100 and wants to have her hair styled for the prom. The salon charges $56 for a hair styling. Gail plans to leave a 20% tip. In dollars, how much money will she have left after she pays the hair stylist?

Answers

Answer: She has left $32.8 after she pays the hair stylist.

Step-by-step explanation:

Money Gali has = $100

Charge per hair style = $56

Tip percent = 20%

Total charge for hair styling = Charge per hair style + Tip

= $ (56+ 20% of 56)

= $ (56+0.2 x 56)

= $ (56+11.2)

= $ 67.2

Money left = Money Gali has - Total charge for hair styling  

= $ (100-67.2)

= $ 32.8

Hence, she has left $32.8 after she pays the hair stylist.

Mr. Gage wants to buy a new car A but is considering used Car B. Car A costs $2,500 less than twice as much as car B. If car A costs $20,800, what is the cost of car B?

Answers

1250 is the answer simple math.
20,800 divided by 2 is 10,400.
Then 10,400 - 2,500 is 7,900, the correct answer is 7,900

how to do this question plz answer my question ​

Answers

I gotchuuuu

Ok so angle ABC we’re gonna call it X

Angle BCD is 2X

The trick is the sum of angles of a pentagon is 540 degrees.

90 + 115 + 125 + 2X + X = 540
3X = 540-330
X = 70

SoOoOoOoOooooo

Angle BCD is 140 degrees !!

Can someone please do these!!

Answers

For number 2. The answer is $6.49

Answer is attached below. Hope this helps.

will select brainliest if ur answer is correct

Answers

Answer:

B (I think)

Step-by-step explanation:

A function can't have two X values that are the same (If I remember correctly) and the second table is the only one that doesn't have duplicated X values

Answer:

the correct answer is b

Step-by-step explanation:

Factor 72x−18xy
Find the Factor of 72x-18xy

Answers

Answer:

4x and (1-y)

Step-by-step explanation:

4x(1-y)

this is my answer

The factors of the expression are 18x and 4-y

Given the expression 72x - 18xy

Find the factor of each term:

72x = 18 * 4 * x

18xy = 18 * x * y

Since 18x is common to both terms, hence the factored form is expressed as:

72x - 18xy = 18x (4 - y)

The factors of the expression are 18x and 4-y

Learn more on factors here: https://brainly.com/question/24539261

Find the missing values in the ratio table.
for every 81 girls, there are 72 boys

Answers

Answer:

its d

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

We know that for every 81 girls, there are 72 boys so how do u get 81? You'd have to multpify 9x9 = 81 and 8x8= 72 so the ratio is 8:9

what are three types of transformations of linear functions?
PLEASE HELP

Answers

the three are translation, reflection, compression or stretch

Answer:

Translation, refelction, stretch/compression. :D

Step-by-step explanation:

i don't how to do this problem 2(x−2)−4x−5= 29

Answers

Answer:

= − 1 9

Step-by-step explanation:

A regular pentagon has what type of
symmetry?

Answers

Answer:

5 sides

Step-by-step explanation:

5

Line symmetry in regular polygons

A regular pentagon has 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides.

Answer:

line symmetry only

Step-by-step explanation:

Tareq pays $22.10 for 2.6 pounds of salmon. What is the price per pound of the salmon?

Answers

Answer: $8.50/pound

Step-by-step explanation:

Price per pound --> take the total price and divide it by the number of pounds

$22.10 / 2.6 pounds = $8.50/pound

Answer:

$8.50

Step-by-step explanation:

take 22.10 divide it by 2.6 and you will get your answer.

Hope this helps

Factor the following expression: x^2+3x

Answers

Step-by-step explanation:

Hey there!

Given;

[tex] = {x}^{2} + 3x[/tex]

~ Take "X" common.

=[tex]x(x + 3)[/tex]

Therefore, "x" and "x+3" are the factors if the expression.

Hope it helps...

29. Solve the equation below.
30. Sol
5x + 1 = -49
CAN YOU PLEASE HELP ME

Answers

the answer is x = -10
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