The tens digit of a two digit number is five more than the units digit. Seven times the sum of the digits of this number is 3 less than the number itself. Find the number.

Answers

Answer 1

Answer:

94

Step-by-step explanation:

Let the unit's digit = [tex]y[/tex]

Let the ten's digit = [tex]x[/tex]

Then the number will be equal to [tex]10x+y[/tex]

Now, using the given statement:

[tex]x=y+5 ..... (1)[/tex]

[tex]7(x+y) = 10x+y-3\\\Rightarrow 7x+7y=10x+y-3\\\Rightarrow 6y-3x=-3 ..... (2)[/tex]

Now, using the equation (1) in equation (2):

[tex]6y-3(y+5) =-3\\\Rightarrow 3y-12=0\\\Rightarrow y =4[/tex]

By equation (1):

[tex]x = 4+5 \\\Rightarrow x =9[/tex]

Therefore, the number is :

[tex]10x+y= 10\times 9 +4 = \bold{94}[/tex]


Related Questions

what is (y^9)^-2? I REALLY NEED THE ANSWER

Answers

Answer: 1/y18

Step-by-step explanation:

Answer:

[tex]\frac{1}{y18}[/tex]

Please Help!!
thankss

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Answer:

Hey bro, how u doin today? 4kt anybody safe

I need answer for this problem​

Answers

Answer:

the answer is B

in radians it is 10 pi/3

How do you write -0.5555555 etc as a fraction?

Answers

-5/10 as a fraction!

what is the unit rate for You create 18 centerpieces for a party in 6 hours. ​

Answers

Answer: The unit rate is 3 centerpieces per hour

Step-by-step explanation:

18centterpieces/6hrs =3

Work out the volume of a cube with length 6.5cm. Give answer to 3 significant figures

Answers

Answer:

265

Step-by-step explanation:

It's a cube, so all sides are the same, so 6.5 x 6.5 x 6.5

This equals 264.625. They want 3 significant figures, so u round to the nearest whole number. Significant numbers are whole numbers. This becomes, 265.


What type of angles are 4 and 5?
3/4
2/1
Same Side Interior
O Alternate Interior
O Alternate Exterior
O Corresponding

Answers

I believe it’s alternate exterior :)

What is the area of trapezoid ABCD?



Enter your answer as a decimal or whole number in the box. Do not round at any steps.

units²

Answers

Answer:

-22.1

Step-by-step explanation:

Answer:

62.5

Step-by-step explanation:

just took tha test

Given the triangle: A=34.5°, B=81.4°, and a=42.8cm, solve for side b

Answers

Answer:

b = 100.9 cm

Step-by-step explanation:

a / A = 42.8 / 34.5 = 1.24

B x 1.24 = b

81.4 x 1.24 = 100.9

Answer:

do you have a picture of the triangle if not where are these points on the triangle

a reason to cancel charli

Answers

She’s childish and disrespectful
Doesn’t deserve her fans plus she said “why can’t I have 100M” like come on

how many tbsp of honey is needed for 20 cups of flour?

Answers

Answer:

16 TBSP

Step-by-step explanation:

I did the math on a calculator thought I owed it to you, took me forever.

; ) plz mark brainliest.

The quarterback for the Dallas Cowboys throws a pass and gains 11 yards on the first down but then
loses 12 yards on the next down when he is sacked. How many yards has he gained or lost?
a. -23
b. -1
c. 1
d. 23

Answers

B. -1
11-12=-1
Hope this helps!

A man bought 4 cups of coffee and left a $7 tip. A woman bought 8 cups of coffee and only left a $2 tip. If they paid the same amount, how much was each cup of coffee?

Answers

Answer:

1.25 im pretty sure sry if im wrong

The inequality 10x + 20y > 500 models all of the combinations of scores of 10 and 20 points that will give a total
greater than 500 points in a game. What is not true about the values for x and y?
A. They will be whole numbers.
B. They will be positive numbers.
C. They will all be in the first quadrant
D. They will each be greater than 5.

Answers

Answer: C

Step-by-step explanation:

Answer:

it isn't C or B

it's either A or D

hope this helps

Step-by-step explanation:

I just need someone to solve for x

20 - 5x > -10

thank youu

Answers

Answer:

x<6

Step-by-step explanation:

write an equation in slope- intercept form of each line

Answers

Answer:

Use the slope −2 and the point (−4,−5) to find the y-intercept.

y=mx+b

⇒−5=(−2×−4)+b

⇒−5=8+b

⇒b=−13

Write the equation in slope intercept form as:

y=mx+b

⇒y=(−2)x−13

Hence, the equation of the line is y=−2x−13.

Alisa and Chelsea paid a total of $31 to rent a canoe. Write
and solve an equation to find h, the number of hours they
rented the canoe.

Answers

Answer:

6+ 10h =31

Step-by-step explanation:

That's your equation. You have to then subtract six from the six and 31. Which would get you 10h=25. Divide 10 from both sides and get h=2.5. They rented a canoe for 2 and a half hours.

What bigger 2/9 or 0.9

Answers

Answer:

.9

Step-by-step explanation:

2/9=.22222 repeating

Answer:

0.9 is bigger

explanation:

0.9 is bigger because 2 divided by 9 is equal to 0.2222222222222222222 and it goes on.

A pancake requires 4 cups of flour for every 16 pancakes. How much flour is used per pancake?

Answers

Answer:

The correct answer is 0.25 cups of flour also written as 1/4 cups of flour

Step-by-step explanation:

HAVE A GOOD DAY!

Answer:

1/4 cup of flour for every pancake

Step-by-step explanation:

Divide 16 by 4 to get 4

Divide 4 by 4 to get 1

Divide 1 by 4 to get 1/4.

So a pancake requires 1/4 cup of flour for every pancake.

Maggie's favorite salad dressing is made with 0.04 liter of vinegar and 0.4 liter of olive oil.She compares the value of the 4 in each amount.Which statement is true? 1:the value of the 4 in 0.04 is 100 times the value of the 4 in 0.4. 2:the value of the 4 in 0.04 is 10 times the value in of the 4 in 0.4. 3:the value of the 4 in 0.04 is the value of the 4 in 0.4 divided by 10. 4:the value of the 4 in 0.04 is the value of the 4 in 0.4 divided by 100

Answers

Answer:

3:the value of the 4 in 0.04 is the value of the 4 in 0.4 divided by 10.

Step-by-step explanation:

This is because in decimal places, we have what is called place value. In a decimal number after the decimal point, each number place is divided by an increasing power of 10. So, for example, if we have a decimal number 0.82, the place value of the 8 is 8/10 while that of the 2 is 2/10² = 2/100.

So, in the given numbers, 0.04 has a place value of 4/100 and 0.4 has a place value of 4/10. So, we can see that 4/100 = 4/10 ÷ 10 = 4/10 × 1/10.

So, the value of the 4 in 0.04 is the value of the 4 in 0.4 divided by 10.

Please help ASAP this is a some homework I need help with

Answers

Answer:

I believe that the answer is 1.4 because if you do all of the math out you get 1,390,000 km which then you put into scientific notation which is 1.4x10 raised to the 4

Step-by-step explanation:

oops i put it up there. Hope that this was helpful.

HELP ASAP, GIVING BRAINLIEST​

Answers

3x - 5y = -13
put this into slope form of y = 3/5x + 13/5
the perpendicular to 3/5 would be -5/3
the answer is -5/3

Which equation is NOT true? (Ratios)

A. 1 m / 100 cm = 3 m / 300 cm

B. 1000 g / 1 kg = 5,200 g / 5.2 kg

C. 1 L / 1000 mL = 1.5 L / 1500 mL

D. 10 cm / 1 mm = 20 cm/ 2 mm
(PLEASE PROVIDE AN EXPLANATION BECAUSE I DON’T UNDERSTAND)

Answers

The correct answer is D!

Help help help help help

Answers

Answer:

1: No Solutions

2:Infinite solutions

3: One Solution

Step-by-step explanation:

Desmos screenshots show solutions for simplified equations

pleaseeee hellppppppppppp meeeeeeeeee IF YOU DONT KNOW THE ANSWER DONT ANSWER PLEASE!!

identify the terms and like terms in this expression 8-x'2 +x - 4x

btw the 2 is above the x

Answers

Answer:

−x2,−3x

 +8

Step-by-step explanation:

on tuesday norachai bought seven boxes. on wednesday half of the boxes that he had were destroyed. on tuesday there were only 13 left. how many did he have on monday?

Answers

Answer:

19

Step-by-step explanation:

First you figure out x/2=13

Then you find out x=26

So then you figure out x+7=26

Which is then x=19

The number of boxes Norachai had on Monday is 19 boxes.

Given that, on Tuesday Norachai bought seven boxes.

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

Let the number of boxes had on Monday be x.

Now, the number of boxes had on Tuesday

= x+7

Now, on Wednesday half of all the boxes that he had were destroyed

= (x+7)/2

As, given on Thursday he had left boxes = 13

So, (x+7)/2 = 13

⇒ x+7=26

⇒ x=19 boxes

Therefore, the number of boxes Norachai had on Monday is 19 boxes.

To learn more about an equation visit:

https://brainly.com/question/14686792.

#SPJ2

Nick is studying the triangle sum theorem in his geometry class. The triangle sum theorem states that the sum the measures of the angles of the triangle is 180°. Nick concludes that all three angles in an equiangular triangle must be 60°. What kind of reasoning is Nick using to form his conjecture?

A.) Deductive Reasoning
B.) Inductive Reasoning

Answers

A.) deductive reasoning.

Answer:

deductive reasoning

Step-by-step explanation:

Nick is reasoning from one or more statements to reach a logical conclusion.

Use the elimination method to solve the system of equations. Choose the correct ordered pair.
3y = x - 1
x - 2y = 2

A. (10,4)
B. (4,1)
C. (6,2)
D. (12,5)

Answers

I think the answer will be C

What is the degree of the polynomial?

Answers

Answer:

3 is correct answer hope it help you .

If a 15 ft tall adult giraffe casts a 18 ft long shadow, then how long is the shadow that a 5 ft tall bird bath casts?​

Answers

Answer:

x = 6 ft. long shadow

Step-by-step explanation:

its a ratio and proportion:

 15 ft. tall giraffe       =     5 ft. tall bird    

    18 ft. shadow                 x shadow

15 (x) = 18 (5)

x = 90 / 15

x = 6 ft. long shadow

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