cuppykittyy
01.01.2020 •
Mathematics
When asked how old she is, a teacher responded with this riddle: “my age is a two digit number. when multiplied by seven, the result is a three digit number. when the digit 6 is written after the three digit number, that number is increased by 1833.” how old is the teacher?
Solved
Show answers
More tips
- H Health and Medicine How to Improve Eyesight: Science-based Techniques to Enhance Your Visual Acuity...
- F Family and Home Do Lullabies Help Babies Sleep or Is it Just a Myth?...
- H Health and Medicine Tick Traps: How to Remove Them Safely and Effectively...
- S Society and Politics Why are thugs called gopniks ? A fascinating journey through Russian subculture...
- A Animals and plants Want a Perfect Lawn? Learn How to Plant Grass the Right Way...
- A Animals and plants How to Properly Care for a Pet Decorative Rabbit at Home?...
- C Computers and Internet How to Check the Speed of My Internet?...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Write a Resume That Catches the Employer s Attention?...
- C Computers and Internet Е-head: How it Simplifies Life for Users?...
Answers on questions: Mathematics
- M Mathematics 10 − 7)3 − 2 × 7 = please...
- M Mathematics Solve the equation for x, square root of the quantity x plus 7 end quantity minus 1 equals x...
- M Mathematics Evaluating a function using function notation occurs when a given value for the independent variable is substituted for all instances of the variable. The expression is then simplified...
- M Mathematics Rectangle EFGH has verticles at E(7,7), F(1,5), G(2,2), and H(8,4). How many units is the perimeter of rectangle EFGH. Answer choices: A. 20 B. 10√13 C. 5√10 D. 6√10...
- M Mathematics The intersection of parallel lines b and c and transversal line d form several special angle relationships, as shown in the Image below. d 12. 3/4 b Which of the following pairs...
- M Mathematics Use the function f(x)=2x³-3x²+7f(-1)=f(1)=f(2)=...
- M Mathematics Help due in 20 minutes!!...
- M Mathematics Let s call these ratios, k, a fraction that compares a part to a whole. If partitioning a directed line segment into two segments, when would your ratio k be the same for each segment?...
- M Mathematics NEED ALL THESE ANSWERED ① Solve the compound inequality and fill in the blanks (▢): ○ 3 ≥ 2x or x - 4 2○ x ≤ ▢ / ▢ or x ▢② Solve the inequality and fill in the blanks (▢): ○ 4 -...
- M Mathematics The state of Connecticut is approximated by a rectangle 100 mi by 50 mi. Hartford is approximately at the center of Connecticut. If a meteor hit the earth within 200 mi of Hartford,...
Ответ:
Let x be the age of the teacher.
We know that 7x is a three digit number.
Writing 6 after this number means to multiply this number by 10 (this adds a zero after the number) and then add 6.
So, we actually only need the last information:
Solving this equation is quite trivial: subtract 7x and 6 from both sides and you get
This is indeed a two digit number, and if you multiply it by 6 it becomes 174, a three digits number.
Ответ: