3 years ago

The sum of two numbers is 12 and their difference is 20. What is the smaller number?

Mathematics

1 answer:

zhannawk [14.2K]3 years ago

3 0

Answer:

16 and -4

Step-by-step explanation:

Let the 2 numbers be x and y with x > y

x+y=12

x-y=20

Adding the 2 equations, term by term on both sides, will eliminate y leaving an equation in x that we can solve

(x+x)+(-y+y)=(12+20)

2x=32

x=16

16+y=12

y=-4

16+-4=12

12=12

16--4=20

20=20

You might be interested in

Will someone please help me out I forgot how to do these

malfutka [58]

Answer:

Step-by-step explanation: It’s the perimeter of each shape so you add the outside of the shape up. The second question is 11.2 and 12 as the width and length. The 11.2 is the width so on the other side it is 11.2, and the length is 12 so the other side is 12. You then add them all up and get your answer.

7 0

3 years ago

Loretta is trying to build the largest taco in the world she uses 2000 pounds of ground beef one tenth as many pounds of cheese

lakkis [162]

Answer:

2000

Step-by-step explanation:

3 0

3 years ago

Ryan bought a digital camera with a list price of $150 from an online store offering a 5% discount. He needs to pay $5.50 for sh

zhannawk [14.2K]

I am thinking 150-5% = 142.50 + 5.50 = $148

3 0

3 years ago

Packages of laundry soap are labeled 70 oz, but they are actually filled with mean contents of 70.2 oz and standard deviation 0.

kozerog [31]

Answer:

Step-by-step explanation:

3 0

3 years ago

What is the ratio of rise to run between the points (3, 4) and (–2, 0)?

mihalych1998 [28]

Answer:

○ B) ⅘

Step-by-step explanation:

Starting from the second endpoint, you go four blocks south over five blocks west [west and south are negatives], giving you ⅘.

I am joyous to assist you anytime.

4 0

3 years ago