The difference of two numbers is 20. their sum is 14. find the numbers. ( show step by step PLEASE )

Mathematics

2 answers:

astraxan [27]3 years ago

8 0

So the difference is dividing
So you would have to 20 divided by 14 wich equals 0.7

soldier1979 [14.2K]3 years ago

3 0

Suppose the numbers are a and b

You are given that a-b=20 and a+b=14

So adding these we get,
$a - b + a + b = 20 + 14$
$2a = 34$
$a = 17$
You are given that a-b 20 therefore
$17 - b = 20$
$b = 20 - 17$
$b = 3$
Hope it helps you

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How am I suppose to solve this?

nika2105 [10]

Set it up as a proportion. 14.25 miles is to 90 minutes as x is to 120 minutes.

We have to solve with like units of measure, so we have to change the hours to minutes before we can set up the proportion.

60 minutes= 1 hour
120 minutes = 2 hours

x= miles in 2 hours

14.25/90 = x/120
cross multiply
(14.25 * 120)= (90 * x)
1710=90x
divide both sides by 90
19= x

You could ride 19 miles in 120 minutes, so you could ride 19 miles in 2 hours.

Did you need help on #2 also?

Hope this helps! :)

6 0

3 years ago

What is 34 tens + 20 tens

photoshop1234 [79]

The answer is 540.
34 tens is 340, and 20 tens is 200. Together the sum is 540.

3 0

3 years ago

(x+3)(x+4)=(x+1)(x+2)

ValentinkaMS [17]

Answer:

x = -5/2

Step-by-step explanation: