1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11111nata11111 [884]
2 years ago
10

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 le

ss than the number itself. Find the number.
Mathematics
2 answers:
snow_tiger [21]2 years ago
7 0

Answer:

The correct answer is 94

Step-by-step explanation:

I am Lyosha [343]2 years ago
3 0

Answer:

43

Step-by-step explanation:

Let

The unit digit = x

The tens digit = y

The number = 10x + y

The tens digit of a two-digit number is five more than the units digit.

y = x + 5

Seven times the sum of the digits of this number is 3 less than the number itself.

7(x + y) = 10x + y - 3

7x + 7y = 10x + y - 3

Find the number.

We substitute x + 5 for y

7x + 7(x + 5) = 10x + (x + 5) - 3

7x + 7x + 35 = 10x + x + 5x - 3

14x + 35 = 11x + 5x - 3

Collect like terms

35 + 3 = 11x + 5x -14x

38 = 16x - 14x

38 = 2x

x = 38/2

x = 19

Solving for y

y = x + 5

y = 19 + 5

y = 24

The number = 19 + 24

= 43

You might be interested in
Write an inequality (you must be older than 13 to play basketball league
marshall27 [118]
13+x=x because 13 plus x will be a good number so you can be able to join the basketball league
4 0
3 years ago
Read 2 more answers
Ermias and Jeremiah both leave the bookstore at the same time, but in opposite directions. If Jeremiah travels 8 mph faster than
leva [86]

Using proportions, it is found that Ermias is traveling at a rate of 11 mph and Jeremiah at a rate of 19 mph.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

Jeremiah travels 8 mph faster than Ermias, hence their velocities are:

x, x + 8

They travel in opposite directions, hence in one hour they are 2x + 8 apart.

In eight hours, the distance is 8(2x + 8), which is of 240 miles, hence:

8(2x +8) = 240

2x + 8 = 30

2x = 22

x = 11.

Then:

  • x = 11 -> Ermias.
  • x = 11 + 8 = 19 -> Jeremiah.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

3 0
1 year ago
Can someone please explain this
SSSSS [86.1K]

Answer:

-1

Step-by-step explanation:

can you also hep me on something

4 0
3 years ago
You have a loan for $200,000 at 8.5% annual simple interest. What is your monthly interest payment?
Sergeu [11.5K]

Answer:

c. 1,417

Step-by-step explanation:

200,000 (8.5%) = 17,000

17,000 / 12 = 1,416.67 or 1,417

5 0
3 years ago
The quotient of z and 8
kiruha [24]

Answer:

z/8

Step-by-step explanation:

cuz it says z and 8 in that order so z/8 please dont just ignore give me 5 star and thanks dont ignore if u do i will never help you

4 0
2 years ago
Other questions:
  • Is 16/14 equally to 64/60
    15·1 answer
  • What is 5/10 in decimal form?
    13·2 answers
  • Help!! is it $486?
    9·2 answers
  • Who was the first president Of the USA??
    10·2 answers
  • Which test point holds true for 2/5x-1/5y≥0
    5·1 answer
  • Simplify 8(xy + 8) + 1. 8xy + 9 8xy + 65 8xy + 73
    13·1 answer
  • help. If 20 men can survive for 24 days on 15 cans of rations, how many cans will be needed for 16 men to survive for 36 days?
    6·1 answer
  • A rabbit population can increase at a rapid rate if left unchecked. Assume that 10 rabbits are put in an enclosed wildlife ranch
    11·2 answers
  • There are 2 questions on this assignment that i really need help with
    13·2 answers
  • Pls answer the question attached
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!