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
Sidana [21]
3 years ago
15

the sum of two numbers is-5.When twice the first number is added to the second number the result is -2,find the two numbers

Mathematics
2 answers:
juin [17]3 years ago
8 0

Answer:

Step-by-step explanation:

First write the question as an equation

x+y = -5

2x+y = -2

From the given equations, we can create a third one.

x+y+2x+y = -7 or 3x+2y = -7

Use trial and error method for the possible values x and y

We know that at least one of these two have to be negative.

x can be 1, in which case y has to be 5.

Check this for

x+y ≠ -5

x can be -1

Try another one where x = -1 and y has to equal -2

Check this

X

x+y = -5

but,

2x+y ≠ -2

Another one,

SSSSS [86.1K]3 years ago
7 0

Answer:

3 and -8

3 x 2 = 6

6 + -8 = 2

3 + -8 = 5

You have to find out which numbers add up to -5

Mainly trial and error

Step-by-step explanation:

You might be interested in
How to factor 15m^2-12m^3
tester [92]
Step 1. Find the Greatest Common Factor (GCF)
GCF = 3m^2
Step 2. Factor out the GCF <span>(Write the GCF first. Then, in parentheses, divide each term by the GCF.)
3m^2(15m^2/3m^2 + -12m^3/3m^2)
Step 3. Simplify each term in parentheses 
3m^2(5 - 4m)</span>
8 0
3 years ago
Read 2 more answers
Sarah will buy bracelets and necklaces in order to sell them in her schools fund raising activity. The bracelets cost $2 and the
Alborosie

Answer:

The answer will be:

b ≥ 10

Step-by-step explanation:

The bracelets cost $2 and the earrings cost $3.

She needs to make at least $60.

She will need to sell more than 10 bracelets.

b = bracelets

e = earrings

2b+3e ≥ 60

6 0
3 years ago
Sherry is driving 390 miles to visit The gateway arch in St. Louis. She drives at an average rate of 65 miles per hour. Explain
grandymaker [24]

Answer:

t = 6 s

Step-by-step explanation:

Given that,

Sherry is driving 390 miles to visit The gateway arch in St. Louis.

She drives at an average rate of 65 miles per hour.

We need to find the amount of time it will take Sherry to get to the arch. Let the time is t.

Speed = distance/time

t=\dfrac{d}{v}\\\\t=\dfrac{390}{65}\\\\t=6\ h

Hence, it will take 6 hours to get to the arch.

8 0
3 years ago
Help!!! Choose the product . - 6p ^ 3 * (3p ^ 2 + 5p - 1)
Lunna [17]

Answer:

-18p^{5} -30p^{4} +6p^{3}

Step-by-step explanation:

(-6p^{3} )(3p^2+5p-1)

(-6p^3)(3p^2)+(-6p^3)(5p)+(-6p^3)(-1)

-18p^{5} -30p^{4} +6p^{3}

<em>hope this helps.....</em>

8 0
2 years ago
Complete the equation so that it has solutions of –5 and 7.<br> +<br> = 0
nekit [7.7K]

Answer:

the answer is - 2

Step-by-step explanation:

7-5=2-2=0

8 0
3 years ago
Other questions:
  • Equivalent fraction on 9/24
    5·1 answer
  • The DiMonte Corporation invented a new type of sunglass lens. Their variable expenses are $12.66 per unit, and their fixed expen
    13·1 answer
  • An airplane flies 105 miles in 1/2 hour. how far can I fly in 1 1/2 hours at the same rate of speed?
    8·1 answer
  • PLEASE HELP ME WITH THIS<br> THANK U!:)))
    8·1 answer
  • Need help with number 16
    10·1 answer
  • The usual price of a sweatshirt is 18$, what is its sale price
    11·1 answer
  • HELP ME ASAP URGENT!!!
    12·1 answer
  • I really need help on these 2 questions. please help me if you can.
    6·2 answers
  • My sister asks you guys for help once more!<br> What is the value of 7/10 - 3/6?
    15·2 answers
  • Help (ಥ‿ಥ)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!