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
aleksandr82 [10.1K]
3 years ago
7

Alexi thinks of a number. he multiplies his number by 10 and then divides the answer by 100. he then multiples this answer by 10

00 and gets a final answer of 67. What number does Alexi thinks of first ?​ please tell fast
Mathematics
2 answers:
Elden [556K]3 years ago
5 0

Answer:

The number Alexis thinks of first is 6.7.

Step-by-step explanation:

Let the number Alexis thinks of be x and the first answer he got be y.

Since he multiplies the number by x and divides the answer by 100, the equation is

10x = y

10x = \frac{y}{100}

Then, he multiplies this answer, \frac{y}{100}, by 1000 and gets a final answer of 67. The equation is

\frac{y}{100} × 1000 = 67

To find y, you divide 1000y by 100 which gives 10y.

i.e. \frac{1000y}{1000} = 67

10y = 67

Divide both sides of the equation by the coefficient of y (which is 10)

\frac{10y}{10} = \frac{67}{10}

y = 6.7

Substituting 6.7 for y in 10x = y

10x = 6.7

Divide both sides of the equation by the coefficient of x (which is 10)

\frac{10x}{10} = \frac{6.7}{10}

x = 0.67

∴ The number Alexis thinks of first is 0.67.

Hope this helps!!! :))

sesenic [268]3 years ago
4 0

Answer:

0.67

Step-by-step explanation:

<u>Solution 1</u>

We can work out the initial number by going backwards from the end:

67/1000= 0.067

0.067*100= 6.7

6.7/10= 0.67

<u>Solution 2</u>

(x*10/100)*1000= 67

x/10*1000= 67

100x= 67

x=67/100

x=0.67

You might be interested in
A coin will be tossed 100 times. You get to pick 11 numbers. If the number of heads turns out to equal one of your 11 numbers, y
kati45 [8]

Answer:

Numbers:

45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55

Chance:

68.27%

8 0
2 years ago
How would u solve this
astraxan [27]

Answer:

congruent angle pair

Step-by-step explanation:

angles 2 and 3 are congruent(equal 90 degrees), and angles 3 and 6 are opposite each other, indicating that they are of equal measure. therefore, angles 2 and 6 and congruent.

7 0
3 years ago
Choose the lowest common denominator.
Brilliant_brown [7]

1) 8

2) -\frac{3}{4}=-\frac{6}{8}, so it is equal to -\frac{6}{8}+\frac{5}{8}

3) 1/8

4 0
2 years ago
Which expression is equivalent to<br> 1/3/?
Rzqust [24]

Answer:

2\5,3\7,4\9,5\11

Thats the answer

3 0
3 years ago
Simplify the expression 2 • (3 + 5 − 1) • 2
s2008m [1.1K]
I think the simplify expression is 2^2 x 7 = 28. Sorry if it is wrong
8 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate the expression.<br><br> - 4(2 - 5)2 + 82
    5·1 answer
  • What is 4c+3f=2290 and 6c+2f=2560 in slope intercept form
    11·1 answer
  • If x is 5 what is 2x​
    12·2 answers
  • BRAINLIEST IF RIGHT FOR SURE
    15·2 answers
  • SOMEONE PLEASE HELP ME!!!
    5·1 answer
  • What is the measure of AngleDCF? Three lines extend from point C. The space between line C D and C E is 75 degrees. The space be
    14·2 answers
  • Find the value of x.
    5·2 answers
  • (4x²y³ + 2xy² – 2y) – (–7x²y³ + 6xy² – 2y)<br> Find the difference of polynomials ?
    14·1 answer
  • Use the graph to answer the question.
    8·1 answer
  • A recipe calls for 3/5 gallon of milk. How much milk is needed to make half the recipe? If possible, write the answer in reduced
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!