The sum of two numbers is 100 and their difference is -20. What are the two numbers?

Answers

Answer 1
Answer:

Answer:

x=40 and y= 60

Step-by-step explanation:

step:1

Let 'x' and 'y' are two numbers

given data the sum of two numbers is 100

x+y = 100......(1)

Given difference of two numbers are

x - y = -20 ......(2)

Step :2

solving the equation (1) and (2)

adding the equations (1) and (2)

x+y+x-y=100-20

cancelling 'y' terms are

2 x = 80

dividing "2" on both sides, we get

x = 40

Step :3

substitute x = 40 in equation (1)

x + y =100

40 + y = 100

subtracting "40" on both sides, we get

40 + y - 40 = 100 -40

y = 60

Final answer:-

The two numbers are x = 40 and y= 60


Related Questions

Can u guys help me on this one too 20 + g = 25
Joyce took out a small loan for $1,200. The interest on the loan was 10.5%, but she paid it off in just 18 months. How much did she pay back in interest?
After sales tax is added the total cost of a $58 purchase $61.48 what is the sales tax rate on the purchase?
Please answer the question
A national park covers 218,375 acres. What is this number written in expanded form

PLEASE HELP!!!CupCaking, a cupcake bakery, uses the equation below to determine the price of cupcakes, where y represents the total price in dollars and x represents the number of cupcakes purchased. Cake Me, another cupcake bakery, uses the table below to determine prices.

Number of Cupcakes (x) Price (y)
2 $3.50
3 $5.25
4 $7.00
6 $10.50

Katie bought one cupcake from CupCaking and Sarah bought one cupcake from Cake Me. Which of the following are true?

A. Sarah is paying the smaller price of $1.25 per cupcake.
B. Katie is paying the smaller price of $1.50 per cupcake.
C. Katie is paying $0.25 per cupcake more than Sarah.
D. They are paying the same price per cupcake.
E. Sarah is paying $0.25 per cupcake more than Katie.

There can be more than 1 answer

Answers

1. 7.00
2. A. Sarah is paying the smaller price of $1.25 per cupcake. 

Jerry wonders "how many $10 bills are equal to a $1,000 bill?

Answers

100 bills, Jerry.
Jerry: " BUT WHY? "
Excellent question, Jerry, you forward thinker.
Well....
10x1=10
10x10=100
See how the product has the same number of zeros as the actual problem?
Look:
10x100 has 3 zeros.
The product is 1,000, which ALSO has 3 zeros.
So, to save yourself the trouble, just count the zeros.
Jerry: " WOW I GET IT NOW!"
AND SO SHOULD YOU AFTER READING THIS! :)

Please help me if you can asap
What is the area of the triangle below

Answers

Answer: i think its 75 srry if wrong

Step-by-step explanation:

Looks like 6 units, could be 5 units.

Least to greatest7/12 2/3 5/36 2/7

put them in order from least to greatest it might help if u put them in decimals

Answers

5/36 2/7 7/12 and 2/3
5/36 = 0.139
2/7 = 0.285
7/12 = 0.583
2/3 = 0.667

so the order is 5/36 , 2/7 , 7/12 , 2/3

Is 9.768 greater than or less than 9.76

Answers

it is greater because 9.76 can also be represented as 9.760, which is less than 9.768
9.768 is greater than 9.76 because it's greater in the thousandths place

Why might someone choose to use the y-intercept and the slope to graph a line?

Answers

because you could use the slope intercept form which is y=mx+b the m stands for the slope and the b stands for the y intercept. you plot the y-intercept or whatever b is then you find the slope and put your dot there making it much faster to graph a line then having to make a table.