If you add the digits in a two-digit number and multiply the sum by 7, you get the original number. If you reverse the digits in the two-digit
number, the new number is 18 more than the sum of its two digits. What is the original number?
A. 42
B. 24
C. 64
D. 46
Е. 36

Answers

Answer 1

The answer is A. 42

Solution:

Let x= ones digit, y=tens digit

1st condition (original number) : 7(x+y)=10y + x

2nd condition (new number by reversing the digits): 18+x+y=10x+y

simplifying:

1st condition: 6x=3y

2nd condition: x=2

substituting x=2 to 6x=3y

y=4

Answer 2

Answer:

42

Step-by-step explanation:


Related Questions

Pls help I’ve been stuck on this for a while

Answers

Answer:

Maybe 60

Step-by-step explanation:

I don't know just please guess sorry but can you mark as brainiest.

use the table that relates y to x​

Answers

Answer:

10 + 7= 17

17 + 7= 24

24 + 7= 31

Step-by-step explanation:

what can 980 be divided by

Answers

Step-by-step explanation:

there are so many numbers that can be divided into 980 like 2,3,4,5 etc....

22) (2n-q)-56-2,4nt4)

Answers

Answer:

?

Step-by-step explanation:

I think some of the question is missing.

Please help!!!!!!

Rewrite this equation in terms of y
2x-3y=22

Answers

The answer is y = 2/3x - 22/3

Answer:

y=[tex]\frac{-22}{3}[/tex]+[tex]\frac{2}{3}[/tex]

Step-by-step explanation:

first subtract 2x

2x-3y=22

-2x    -2x

-3y=22-2x

divied by-3

-3y/-3=22-2x/-3y

answer-y=-22/3+2/3x

A rectangular prism with the width as two feet, the length as one and a half feet and the height as one and a half feet.



What is the volume of the prism?



Enter your answer in the box as a mixed number in simplest form.

Answers

Answer:

Fraction form: 1/2

Decimal Form: 0.5

Step-by-step explanation:

2 x  1/2 x 1/2

Keep in mind each time you are trying to find the Volume of a Prism make sure to multiply the length x width x height.

Describe a pattern in each sequence. What are the next two terms of each sequence
b. 400, 200, 100, 50, ...

Answers

Answer:

25

Step-by-step explanation:

you divide each term by 2

Answer:

400, 200, 100, 50,25

you are dividing each number by 2

What is the sum of -5 + 4

Answers

Answer:

-1

Step-by-step explanation:

please rate :)

-1?
Cuz u move to the right of the number line if ur adding a positive to it

may someone pleaseeeeeeeeeeeeee helpppppppp meeeeeeeeeeeeeeee

Answers

Answer:

17 + 15

Step-by-step explanation:

17 + 15. Added to = addition so you add 17 to 15 using the addition sign. I hope this helps!

this is confusing i need help ;-;

Answers

Answer:

B I think

Step-by-step explanation:

Pretty sure its B i think

What is the value for x and for y?

Answers

Answer:

20+7x=90

x=10

50+2y=90

y=20

I think
X=10
Y=20
Because a straight line is 180. So 180-20=160 from there you see that one of the angles is a right angle, you can tell this by that it has that little cube in the middle. So 160-90=70 that means that 7x=70 bit you are trying to find for x so divid 70 by 7 that equals 10.
Now to solve for why you have to plug in the information you already know. Vertical angles are congruent. That means that the that the 20 goes straight across and 7x with is actually 70 goes straight across. Now you already know the angle in the middle is 90 but this this it’s split. Since x is 10 multiply 5 by 10 then you get 50 now 90-50=40. 2y is 40 divide it by 2 to get y=20.
I’m bad at explaining so I hope I didn’t confuse you.

simplifie A=2 X x + y x 5 + z x z

Answers

Answer:

2x + 5y +z²

Step-by-step explanation:

you multiply 2 and x then y and five and z and z

7x — 7 = 3х – 3.
what is x

Answers

x = 1

Hope This Helps✨

Answer:

1

Step-by-step explanation:

7x-7=3x-3

7x-3x=-3+7

4x=4

divide both sides by 4

hence,x=1

There are 18 boys and 46 girls in a class. 87.5% of the students in the class take the bus to school. How many students do not take the bus to school?

Answers

Answer:

12.5

Step-by-step explanation:

dont now how many people i forgot

Answer:

There are 8 students that do not the bus to school

Step-by-step explanation:

hope this helps:)

Mr. Tyler buys 4 round-trip tickets from Ft. Lauderdale, Florida, to Toronto, Canada. The total cost is $2,156. How much does each ticket cost? Enter the correct answer in the box

Answers

Answer: $539

Step-by-step explanation:

From the question, we are informed that Mr Tyler bought 4 round-trip tickets from Florida to Canada and that the total cost is $2,156.

The cost of each ticket will then be:

= Total cost of the tickets / Number of tickets

= $2156 / 4

= $539

Therefore, each ticket cost $539

A submarine dove to a point 1760 feet below sea level.
Write a signed number to represent this elevation.

Answers

-1760. Just let 0 be sea level

Answer:

-1760

Step-by-step explanation:

Sea level is 0 so if you under water then you are going into negatives.

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Answers

yes swag . lollololololololol hey lol
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swagger then ever
jennjsnehebeoenbsjsb&$3!&:739$isjisbeiahi$.83/8$hJjjeishJuhHwjjh)uissijsb

chris is going on holiday to the united states of america the exchange rate is £1=$1.55 chris has £720 spending money how much does he have in dollars

Answers

Answer:

$1116

Step-by-step explanation:

Given data

We are told that the exchange rate is

£1=$1.55

if chris has £720

then £1 is the same as $1.55

      £720 will be x

cross multiply

x= 720*1.55

x= $1116

A building casts a shadow that is 36 feet long. At the same time of day, a nearby 9-foot tall tree casts a shadow that is 4 feet long.how tall is the building
9 feet
16 feet
56 feet
81 feet

Answers

Answer:

16 feet is the correct answer to this problem.

250 feet in 2 seconds=

A: 25 feet per second
B: 500 feet per second
C: 5 feet per second
D: 125 feet per second

Answers

D 125 feet per second because 250 divided by 2 =150.

I think its D

hope this helps

I NEED HELP!!!!!!!!!!!

Answers

The answer is b, because b explains how to get 16x2 - 36.

WHICH IS THE EQUATION THAT FITS THE PATTERN AND WHAT ARE THE TWO MISSING VALUES FOR Y I NEED HELP ASAP!!!!

Answers

Answer:

y= x-28; The missing numbers are 9 and .....

Step-by-step explanation:

As an example in the table it has 32 as x and 4 as y. 32-28 =4

find sin A and B, cos B and A, and tan B and A​

Answers

Step-by-step explanation:

[tex] \sin(a) = \frac{7}{25} = 0.28 \\ \sin(b) = \frac{24}{25} = 0.96 \\ \cos(a) = \frac{24}{25} = 0.96 \\ \cos(b) = \frac{7}{25} = 0.28 [/tex]

tan(A)= 7/24= 0.29

tan(B)= 24/7=3.42

A=16.26°

B=73.73°

Find the geometric mean of the numbers. If necessary, give the answer in simplest radical form.
7 and 28

Answers

Answer:

14 = x

Step-by-step explanation:

The parabola y = x is shifted up by 7 units and to the left by 1 unit. What is the equation of the new parabola ?

Answers

1 + 5

solution +155

mstr pabola cand off break fast is an 12552

Solve for X

2/3 ( x - 7) = -2

Fastest Answer will get Brainleist Points

Answers

Answer:

2(x−7)/3 =−2

2x-14/3=-2

x=4

Which of the following equations would be parallel to the line x = 3?

1. y = 3x

2. y = 1

3. y = x

4. x = 5

Answers

Answer:

4. x = 5

Step-by-step explanation:

For two lines to be parallel they must have the same slope, but not be the same line. Both x=3 and x=5 both have slopes of 0, so they are parallel. Another way to tell is that x=3 is a vertical line; therefore, it will be parallel to any other vertical line, such as x=5.

The last answer is correct... x = 5

20 points helppp!!!

Answers

Answer:

C

Step-by-step explanation:

Answer:

C     (20.25)

Step-by-step explanation:

Formula = A=[tex]\frac{c^2}{4\pi }[/tex]

A=[tex]\frac{9^2}{4\pi }[/tex]

A=81/4pi

Area=20.25[tex]\pi[/tex] meters

What is the y-value when x = 0 in the function below? y=8x+7

Answers

Answer:

dfghjk

Step-by-step explanation:

lol

What number will each of these pairs of tiles equal ? (Pls answer :c)

Answers

Answer: 0
You are subtracting each value by itself so there would be nothing left. If it were addition then that would be different
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