1 year ago

Pls help with age problem.

Mathematics

1 answer:

kozerog [31]1 year ago

3 0

Answer:

John is 19 and his sister is 23.

Step-by-step explanation:

See attached image.

You might be interested in

What is the value of x in the equation 4(2x 10) = 0? −5 −7 5 7

Alex73 [517]

4(2x+10)= 0
8x+40=0
subtract 40 from both sides
8x+40-40=0-40
8x=-40
x=-40/8
x=-5

4(2x-10)=0
8x-40=0
Add 40 from both sides
8x-40+40=0+40
8x=40
x=40/8
x=5

4 0

3 years ago

Read 2 more answers

ILL GIVE ANYTHING PLEEEASSE HELLLP

laila [671]

0.020625 I think?!?!

5 0

3 years ago

The following system of equations is

Snezhnost [94]

Answer:

equivalent

Step-by-step explanation:

when you divide the second one by 2 you'll get the first one

7 0

3 years ago

Is the relation a function?<br> {(-2, 3) (1, 2) (0, -1) (3, 1)}

Alex

Answer:

yes

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

Please help me with this math problem.

liraira [26]

If we plug the values, we have

$f(2) = 2p+3,\ g(5) = 5+4p$

So, we have to solve the following equation:

$2p+3 = 5+4p \iff -2p=2 \iff p = -1$

So, when we impose $f(x) = g(x)$ , knowing the value of p, we have

$f(x) = -x+3 = x-4 = g(x)$

And so the solution is

$-x+3 = x-4 \iff -2x = -7 \iff x = \dfrac{7}{2}$

4 0

3 years ago