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
Elina [12.6K]
3 years ago
8

If the sum of two numbers is 15 and their product is 50 what are they

Mathematics
1 answer:
Westkost [7]3 years ago
5 0
Xy = 50
x + y = 15

x = 15 - y

xy = 50

(5 - y)y = 50

5y - y^2 = 50

y^2 - 5y + 50 = 0

(y - 5)(y - 10) = 0

y - 5 = 0 or y - 10 = 0

y = 5 or y = 10

x + y = 15

For y = 5: 

x + 5 = 15

x = 10

For y = 10

x + 10 = 15

x = 5

Answer: the numbers are 5 and 10.

You might be interested in
A SOLUTION CONTAINS 60% WATER, 15% BLEACH AND THE
Allushta [10]

Answer:

20 ounces of cleaner

Step-by-step explanation:

Water 48 oz is 60% of unknown total. 60% = 3/5. Create equation and solve

48= 3x/5. 240= 3x. 80 = x

Total of water, bleach and cleaner is 80 ounces

60% + 15% = 75%

100% - 75%= 25% cleaner

.25 × 80 = 20 ounces

6 0
3 years ago
Karen is 6 yrs older than her sister Michelle and Michelle is two years younger than their brother David If the sum of their age
frosja888 [35]
You are told the ages of Karen and David in terms of Michelle's age.
Let m = Michelle's age.

Michelle's age = m
Karen's age = m + 6

Michelle is two years younger than David, so David is two years older than Michelle.

David's age = m + 2

Add the ages and get 62.

m + m + 6 + m + 2 = 62

3m + 8 = 62

3m = 54

m = 18

Michelle is 18 years old

Karen is 6 years older, so she is 24 years old.

David is 2 years older than Michelle, so he is 20 years old.
4 0
3 years ago
the diameter of the a sphere is increading at the rate of 2cm. per minute. Find the rate of change of the radius
____ [38]
So...the diameter is increasing at a rate if 2cm/minute, therefore the radius (1/2 the diameter) is increasing at half the rate. You will learn how to calculate the rate of change at a specific point in time in calculus.
3 0
3 years ago
An employee worked 36 hours last week. This week, she worked 48 hours. Find the percent increase. Round to the nearest percent.
ioda

Answer:

There was a 25% increase.

Step-by-step explanation:

6 0
3 years ago
If x=7and =-2, determine the value of 6x-4y
SVEN [57.7K]

Answer:

the answer is 50

Step-by-step explanation:

first you plug in the x and y in the equation, making it 6(7)=-4(-2)           then, you multiply the numbers together, making the equation 42+8.                                                    finally, you add those numbers together, giving you the answer 50

8 0
3 years ago
Read 2 more answers
Other questions:
  • A scientist observes and counts 155 bacteria in a culture. Later, the scientist counts again and finds the number has increased
    10·1 answer
  • Is 13 one tenth of 1.3
    14·2 answers
  • What percent of 940 is 14.1
    9·2 answers
  • The College Board reports that 2% of students who take the SAT each year receive special accommodations because of documented di
    5·2 answers
  • What is the value of the expression a2 + b3 when a= 1/3 and b= 1/2 ?
    13·1 answer
  • What is the measure of DAC?<br><br> - 30<br> - 45<br> - 60 <br> - Not enough information
    5·2 answers
  • HELP NEEDED ASAP! GIVING BRAINLIEST
    10·2 answers
  • 1/2(x-5)=2x+5. What’s the answer
    5·1 answer
  • PLSSSS HELP<br><br> Choose ALL answers that describe the polygon.
    8·1 answer
  • 19:10.___ for the __ of man is come to ___ into __ that which was __​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!