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
Leokris [45]
3 years ago
15

The sum of 5 and 12 is 7 if and only if

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
8 0
The sum of 5 and 12 is 7 if and only if 5 is a negative integer such that
-5 +12 =7.
Integers are whole numbers which are either negatives or positive normally shown using a number line. 
You might be interested in
Which statement s true about this right triangle?
12345 [234]
Where is the picture ?? I don’t understand ok
8 0
3 years ago
A store is having a sale on jelly beans and almonds. For 6 pounds of jelly beans and 2 pounds of almonds, the total cost is $12
CaHeK987 [17]

Solution:

Let each pond of  jelly beans cost $x.

and each pond of almonds cost $y.

Then we can write

6x+2y=12.......(i)

3x+5y=15.....(ii)

Now solve these two equations together using substitution we get

3x=15-5y

30-10y+2y=12\\
\\
-8y=12-30\\
\\
-8y=-18\\
\\
y=2.25\\
\\
3x=15-5y=15-5*2.25=3.75\\
\\
x=1.25

Hence each pond of jelly bean cost 1.25$

Each pond of almond costs 2.25$


3 0
3 years ago
Find the missing length indicated​
zhannawk [14.2K]

Answer:

x = 135

Step-by-step explanation:

The three triangles are similar.

144/y = y/81

y^2 = 144 * 81

y = 12 * 9

y = 108

81^ + 108^2 = x^2

x^2 = 18225

x = 135

8 0
3 years ago
2x - y = 5<br> 5x + y = 16
Masteriza [31]
7x= 21
X=3
Answer is 3! (:
6 0
4 years ago
Read 2 more answers
How to write a word problem using the numbers -2.5 and -7,
ozzi
Jessica had -7 dollars in her bank account. Then she bought a eraser for $2.50. How much money does she have now?
5 0
3 years ago
Other questions:
  • Simplify y+1&lt;3 please need help
    14·1 answer
  • What is the missing angle
    14·2 answers
  • How many gallons are in 50 liters? rounded answer to the neareast tenth
    13·2 answers
  • A carnival snack booth made $76 selling popcorn in one day. It made 22 times as much selling cotton candy. How much money did th
    15·2 answers
  • Enter the division problem 15 ÷11 as a fraction.
    14·2 answers
  • Write a two-column proof for the following conjuncture. You may not need to use all of the rows of the two-column table provided
    6·1 answer
  • HELP PICTURE IS SHOWN
    13·2 answers
  • El taller de baile tiene tres veces la cantidad de inscritos que el taller de arte el taller de arte tiene 98 escritos menos que
    9·1 answer
  • If APTS ~ APQR, find the value of x
    11·1 answer
  • Suppose that $16,000 is deposited for five years at 5 % APR. Calculate the interest earned if interest is compounded semiannuall
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!