3 years ago

The sum of two numbers is 24. The difference is 15. What are the two numbers?

1 answer:

tatiyna3 years ago

3 0

The numbers are "x" and "y",
we suggest this system of equations.
x+y=24
x-y=15
solve by reduction method.
x+y=24
x-y=15
-----------------
2x=39 ⇒x=39/2=19.5

x+y=24
-(x-y=15)
-------------------
2y=9 ⇒y=9/2=4.5

The numbers are 19.5 and 4.5

To check
19.5+4.5=24
19.5-4.5=15

You might be interested in

2596 divided by 83 can't figure is out who ever does it gets $500 I really need help

worty [1.4K]

Answer:

2596\83 =31.2

Step-by-step explanation:

8 0

3 years ago

Simplify square root of five times the quantity six minus four square root of three.

NemiM [27]

6√5 - 4√3-

i took the test but sorry if its wrong

5 0

3 years ago

A farm is 5 ha in size it is 1000 by

julia-pushkina [17]

Your answer is 200 please give me a rate and thanks ;)

3 0

3 years ago

Read 2 more answers

3x+5y=14 and 6x-4y=9

zaharov [31]

Answer:

Step-by-step explanation:

Bấm máy tính hệ phương trình là ra

4 0

3 years ago

A factory produces fuses, which are packaged in boxes of 22. Four fuses are selected at random from each box for inspection. The

mojhsa [17]

The probability of finding one of the two defective fuses is:
$\frac{2C1\times20C3}{22C4}=0.3117$
The probability of finding 2 defective fuses is: $\frac{2C2\times20C2}{22C4}=0.026$
Therefore the probability of rejecting is 0.3117 + 0.026 = 0.3377.

5 0

3 years ago