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
klasskru [66]
3 years ago
15

Mrs. Kelly's brother is 15 year younger than her. Their combined ages add up to 62 years. What is Mrs. Kelly's age

Mathematics
1 answer:
AlekseyPX3 years ago
3 0

Answer:

38.5 years old

Step-by-step explanation:

Let us represent Mrs.Kelly's age with the parameter (k). It is given that her brother is (15) years younger than her, thus his age is (k - 15). It is given that the sum of their ages is (62). Therefore one can form an equation with the given information and solve for the unknown.

(Mrs.Kelly's age) + (Brother) = (62)

Substitute,

(k) + (k - 15) = 62

Simplify,

k + k - 15 = 62

2k - 15 = 62

Inverse operations,

2k - 15 = 62

2k = 77

k = 38.5

You might be interested in
Anil completes the 72km journey between Bristol and Cardiff in 48 minutes.
eimsori [14]

total distance travelled=72+69=141

time taken in hours for journey= (48/60)h + (69/60)= 1.95 h

average speed=141km/1.95h= 72.3km/h (3 sf)

5 0
3 years ago
Read 2 more answers
Please help me out here, I’ve been reposting the same questions and have not seen people not answer mine. :( just please i will
anastassius [24]

Answer:

There are infinite solutions because they are the same equation

2D + 1G = 12

and

4D + 2G = 24 (divide by 2) 2D + G = 12

2D + 1G = 12 is the same as 2D + 1G = 12

3 0
2 years ago
Read 2 more answers
So if a video that is 15:34 how long is it when 2 times speed
rusak2 [61]

Answer:

7:47

Step-by-step explanation:

Here are two ways of solving this:

The video will be half the time of 15:34, so you need to divide the time 15:34 by 2.

Method 1)

Use the tip. The video is 15 minutes and 34 seconds long.

Convert minutes to seconds: 15 * 60 = 900

Add 34 seconds to the 15 minutes: 900 seconds + 34 seconds = 934 seconds

The video is 934 seconds long.

Divide the total seconds by 2: 934/2 = 467

467 seconds = 420 seconds + 47 seconds = 7 minutes and 47 seconds

Answer: 7:47

Method 2)

Divide the minutes by 2 and divide the seconds by 2.

15 minutes and 34 seconds.

Divide minutes by 2: 15/2 = 7.5

Divide seconds by 2: 34/2 = 17

Now we need to add 7.5 minutes and 34 seconds.

0.5 minutes is half a minute, so it's 30 seconds.

7.5 minutes + 17 seconds =

= 7 minutes + 0.5 minute + 17 seconds

= 7 minutes + 30 seconds + 17 seconds

= 7 minutes + 47 seconds

= 7:47

Answer: 7:47

6 0
3 years ago
Which symbol correctly compares these fractions? 13 20 ___ 7 10
fomenos
These are fractions? Like 13/20 and 7/10? Is so the symbol would be 13/20 < 7/10 because 7/10 is a higher fraction than 13/20
7 0
3 years ago
Read 2 more answers
What is the unit rate of $2.98
Semenov [28]

Answer:

Step-by-step explanation:

The existence of a unit rate implies that you have TWO variables.  Here you list only one:  $.

If you pay $2.98 for 6 units of something, such as pieces of fruit, then the unit rate would be:

$2.98

----------------------- = $0.50/piece

6 pieces of fruit

7 0
3 years ago
Other questions:
  • Which of the following represents the prime factorization of 72?
    6·2 answers
  • Customers can pick their own pumpkins at the great pumpkin patch. They pay 4$ to enter the patch and 3$ per pound for the pumpki
    14·1 answer
  • Can someone answer this
    6·1 answer
  • 4 cubes high 4 cubes long and 2 cubes wide how many cubes you need to make a prism
    11·1 answer
  • 2x-2&lt;-12or2x+3&gt;7 what is the solution to this compound inequality
    13·1 answer
  • P minus p over 6 = p over three plus 2
    6·1 answer
  • n ant needs to travel along a 20cm × 20cm cube to get from point A to point B. What is the shortest path he can take, and how lo
    8·1 answer
  • Find the area of a square with a diagonal of 4 cm.
    6·2 answers
  • The table shows the price of strawberries this week at The Produce Place.
    14·1 answer
  • Explain how these three graphs are related:
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!