3 years ago

The sum of two numbers is 70 and their difference is 30. Find the two numbers

Mathematics

1 answer:

ikadub [295]3 years ago

8 0

Answer:

Our two numbers are 50 and 20

Step-by-step explanation:

Sum means add together

Difference means subtract each other

x + y = 70

x - y = 30

subtract from each other

2x = 100

divide both sides by 2

x = 50

our first number is 50

50 + y = 70

subtract both sides by 50

y = 20

Our two numbers are 50 and 20

You might be interested in

-3x+y=-3<br> How do I write this in y=Mx+b form?

Bumek [7]

Answer:

y=3x-3

Step-by-step explanation:

all you need to do is get the -3x to the other side of the equal sign

8 0

4 years ago

One less than the product of four and a number is 11. What is that number ?

agasfer [191]

<h3>One less than the product of four and a number is 11. What is that number ?</h3>

Answer: The number is 3

Step-by-step explanation:

We will call X the number, then 4X - 1 = 11

4X = 11 + 1 =12

X = 12/4 =3

This is the number = 3

$\textit{\textbf{Spymore}}$

5 0

3 years ago

Mrs.Isoceles has graded 20% of her 150 students papers how many papers does she still need to grade

Daniel [21]

The answer is 30. you can find the unit rate but the calculator was invented a long time ago so i used that ;)

3 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (1,-5) and (3,5)?

Lana71 [14]

Answer:

a) 5

Step-by-step explanation:

Put them into slope intercept form AKA y=mx+b: -5=m1+b <em>and</em> 5=m3+b

Subtract the equations to get -10=-2m

Divide both sides by two to get: 5=m

Hope this helps! (^-^)

8 0

3 years ago

Whats is<br> m Enter answer in the box plz help

Tems11 [23]

Answer:

there's no m

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers