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
Alenkasestr [34]
3 years ago
8

Given a two-digit number, make a three digit number by putting a 6 as the rightmost digit. Then, add 6 to the resulting three di

git number and remove the rightmost digit to obtain another two digit number. If the result was 76, what is the original two digit number?
Mathematics
1 answer:
VladimirAG [237]3 years ago
5 0
By working backwards, 
<span>you get 76 as your answer because you have to remove the rightmost digit, right? so the three-digit number is </span>

<span>76x </span>
<span>(x stands for the rightmost digit, because we don't know what the rightmost digit is) </span>

<span>we are told we have to add six to the three digit number to get 76x, so we have to subtract 6 from 76x: </span>
<span>76x - 6 = ??? </span>

<span>since we assume that the original two-digit number is NOT 76, and any number from 760 to 765 inclusive minus 6 is logically in the 750-range, we can conclude that the original two-digit number is 75. </span>
You might be interested in
Expand and simplify 4(2x +7) – 3(x + 5)
Vikentia [17]

Answer:

4\left(2x+7\right)-3\left(x+5\right)=5x+13

Step-by-step explanation:

Given the expression

4\left(2x+7\right)-3\left(x+5\right)

<u>Expand and simplify the expression</u>

4\left(2x+7\right)-3\left(x+5\right)

Expand  4(2x + 7) = 8x + 28                  

4\left(2x+7\right)-3\left(x+5\right)=8x+28-3\left(x+5\right)

Expand  -3(x + 5) = -3x - 15

                                 =8x+28-3x-15

Group like terms

                                  =8x-3x+28-15

Add similar elements:  8x - 3x = 5x

                                   =5x+28-15

Simplify

                                    =5x+13

Therefore, we conclude that:

4\left(2x+7\right)-3\left(x+5\right)=5x+13

6 0
3 years ago
Together, Amy and Thea make up 1/4 of the midfielders on the soccer team. how many midfielders are on the soccer team? show your
tensa zangetsu [6.8K]
12 is the tital number of midfielders because since there are 3 people who make up 1/4 of the midfieldlers on the soccer team you need to miltiply 4 and 3 and 1/4 to count the total amount of midfeilders on the soccer team
(4)(3)=(1/4)(4)
3 0
3 years ago
Read 2 more answers
Is 10 a solution of 2y+7(y-3)=60
slamgirl [31]
The answer to 2y+7(y-3)=60 is y=9
6 0
2 years ago
The mean annual income for adult women in one city is $28,520 and the standard deviation of the incomes is $5600. The distributi
pshichka [43]

Answer:

E(\bar{x}) = 28520

Standard error of mean = 689

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = $28,520

Standard Deviation, σ = $5600

Mean of sampling distribution =

E(\bar{x}) = \mu = 28520

As per Central Limit Theorem, if the sample size is large enough, then the sampling distribution of the sample means follow approximately a normal distribution.

Sample size, n = 66

Since the sample size is large, we can use normal distribution for approximation.

Standard error of mean =

\displaystyle\frac{\sigma}{\sqrt{n}} = \frac{5600}{\sqrt{66}} = 689.31 \approx 689

7 0
3 years ago
The probability of an event is 0.001. Which of the following best describes the event?
RideAnS [48]
The answer you are looking for is B, there is a small chance of the event occurring. <span />
5 0
3 years ago
Read 2 more answers
Other questions:
  • The area of a square rug can be represented by the expression of 100x²+60x+9.
    5·1 answer
  • Paula caught a tarpon with a weight that was 11 times as great as the weight of a permit fish she caught. The total weight of th
    14·1 answer
  • Which of the following is a mixed number? A. 5/2 B. 2.3 C. 2 1/2 D. 2/5
    14·2 answers
  • MARKING BRAINLIEST I NEED HELPPPPP ASAPPPPP
    10·1 answer
  • joan is rolling a six— sided numbers cube with 1—6 on the sides. what is the probability that she will roll a numbers less tha 3
    13·2 answers
  • what is the economic and political system in which the government controls property and the distribution of income? in this syst
    8·1 answer
  • HELP!!!!!!!!!!!!!!!!!!!!!!!!
    8·1 answer
  • What equation represents an exponential function that passes through the point (2, 80)?
    12·1 answer
  • QUICK ALSO BRAINLY Which graph shows a proportional relationship between the number of hours of renting a bicycle and the total
    6·1 answer
  • Point B has coordinates ​(3​,2​). The​ x-coordinate of point A is -1. The distance between point A and point B is 5 units. What
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!