All categories

3 years ago

The sum of two numbers is 14 and their difference is 4

Mathematics

2 answers:

nadya68 [22]3 years ago

8 0

Answer:

Numbers are 9 and 5

Step-by-step explanation:

x + y = 14

x - y = 4

Rewrite 1st equation

x = 14 - y

Put this into the other

14 - y - y = 4

14 - 2y = 4

14 = 4 + 2y

10 = 2y

y = 5

x + y = 14

x + 5 = 14

x = 9

Check answers both equations!!

9 + 5 = 14 Correct

9 - 5 = 4 Correct

Dimas [21]3 years ago

5 0

Answer:

Step-by-step explanation:

10+4 is 14 amd 14-4 is 10

You might be interested in

When factored completely, X^3-7x^2-30x

sweet-ann [11.9K]

Answer:

x(x+3)(x−10)

Step-by-step explanation:

Hope this was helpful let me know if it was!

5 0

2 years ago

13.On many multiple-choice tests, 1 point is given for each correct

lana [24]

C is the answer I believe

Hoped it helped

7 0

3 years ago

A rectangle with a perimeter of 19m^2+2m-10 and a width of m^2 write an expression for the lenght

never [62]

Answer: $\frac{17}{2}m^2+m-5$

Step-by-step explanation:

By definition, the perimeter of a rectangle is:

$P=2l+2w$

Where "l" is the lenght and "w" is the width.

If you solve for "l":

$P-2w=2l\\\\l=\frac{P-2w}{2}$

In this case, you know that the following expression represents the perimeter of the rectangle:

$19m^2+2m-10$

And the width of that rectanle is represented wih this expression:

$m^2$

Therefore, based on the explained above, you can conclude that the lenght of that rectangle is given by:

$\frac{19m^2+2m-10-2(m^2)}{2}$

Finally, simplifying the expression, you get:

$=\frac{17m^2+2m-10}{2}=\frac{17}{2}m^2+m-5$

8 0

3 years ago

Find the area with width being l - 8, length being l, and perimeter being 136 ft

zimovet [89]

Answer: l-8,l, 136 ft

Step-by-step explanation:

Nothing further can be done with this equation/topic

Solved!

l-8,l, 136 ft

3 0

2 years ago

Need Help ASAP I’m having trouble

Marysya12 [62]

Answer:

Step-by-step explanation:

nerd nerd nerd nerd lolololollool

6 0

2 years ago