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
ANTONII [103]
3 years ago
13

An integer is 15 more than 2 tomes another. If the product of two integers is -27 then find the integers

Mathematics
1 answer:
andre [41]3 years ago
7 0

Answer:

x = 9 and y = -3

Step-by-step explanation:

Let's say the first integer is x and the second one is y. Then, if we put the words into mathematical expressions, we get:

x = 15 + 2y

xy = -27

We can use substitution to solve this system of equations. We put 15 + 2y in for x in xy = -27:

(15 + 2y)*y = -27 ⇒ 2y² + 15y = -27 ⇒ 2y² + 15y + 27 = 0

Now, we have a quadratic to solve, so after some trial and error, we get:

(2y + 9)*(y + 3) = 0

Setting each of these to 0, we get two possible answers for y:

y = -9/2 or y = -3.

However, it says that y is an integer, so it can't be -9/2 and must be -3. We use this to find x:

x = 15 + 2*(-3) = 15 - 6 = 9

So, the two numbers are x = 9 and y = -3.

You might be interested in
John’s house is 12 miles away from school. He is two-thirds of the way home. How many miles has he walked? A. 8 B. 16 C. 18 D. 2
Oksi-84 [34.3K]
This question is funny because the total he has to walk from school back home is 12 MILES. The question tries to confuse you by using the term “two-thirds”. Here is my point: He only had to walk a total of twelve miles. Why would the answer be 16, 18, and 24 miles when he only has to walk 12??? This is just common sense and I wouldn’t overthink the question. I hope I helped! Glad I caught this. Have a great night.
~Brooke❤️
4 0
3 years ago
Read 2 more answers
Quick mathswatch ASAP Will give brainliest for the person who explains
kenny6666 [7]

Answer:

The equation  is : x-2y+2=0.

6 0
3 years ago
Read 2 more answers
Electronics unlimited sells tvs. There are 110 tvs on display in the showroom, and each tv is turned on to a random channel from
prisoha [69]
It would be 4/11 chance bc if you you think about it, it would 7/11 of it being a sports channel which remains 4/11 of it being any of the other
6 0
3 years ago
Read 2 more answers
Arrange the steps to perform this subtraction operation in the correct order.
taurus [48]

Answer:

=1.23*10^6

Step-by-step explanation:

We have to calculate

(1.93*10^7 )-(9.7*10^6)

In order to add or subtract two numbers in scientific notation, we have to make sure that the power of exponents in both numbers is same.

We have to reduce the power of 10 in first number from 7 to 6

So,  

Step 1:

1.93*10^7=1.93*10*10^6

=10.93*10^6

Now,

Step 2:

=(1.93*10^7 )-(9.7*10^6 )

= 10.93*10^6- 9.7*10^6

Step 3:

=(10.93-9.7)*10^6

=1.23*10^6

7 0
3 years ago
Read 2 more answers
Kahleela starts the engine on her small private airplane. The engine drives a propeller with a radius of 8.5 feet and its center
algol13

Answer:

a=21.1

Step-by-step explanation:

You can use the given (incorrect) equation and fill in the value of t to find h:

 h = 12.5 +9sin(750(3.5)) = 3.68 . . . . feet

__

Or, you can use the correct equation, or just your knowledge of revolutions:

 h = 12.5 +9sin(750(2π·3.5)) = 12.5 . . . . feet

in 3.5 minutes at 750 revolutions per minute, the propeller makes 2625 full revolutions, so is back where it started — at 12.5 feet above the ground.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Jerry is making trail mix for his camping trip. He had 200 grams of peanuts, 350 grams of raisins, and 735 grams of pretzels. He
    14·1 answer
  • Which Mr. Jones has all the students in his class lined up the nine student in line ends up being exactly at the middle of the l
    15·1 answer
  • In 20 spins, about how often can you expect to land on a number evenly divisible by 2? The spinner is 1-8. Theorectical probabil
    7·2 answers
  • I am not sure how to figure this out.
    13·1 answer
  • How to divide fractions without calculator?
    7·1 answer
  • Which of the following multiplication problems has a product that is less than 3/8 Select three that are correct.
    11·2 answers
  • The number of bacteria in a lab experiment can be modeled by the function
    8·1 answer
  • 5m+2n-7-2m+15 Simplified expression
    10·1 answer
  • All triangles are similar <br><br> AD= x-2<br> CD=x+3<br><br> Find the value of x
    13·1 answer
  • Which equations are true equations?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!