3 years ago

X divided by x+3 equals 4 divided by x+5

Mathematics

1 answer:

noname [10]3 years ago

4 0

Answer:

x=-4, 3.

Step-by-step explanation:

x/(x+3)=4/(x+5)

cross product

4(x+3)=x(x+5)

4x+12=x^2+5x

x^2+5x-4x-12=0

x^2+x-12=0

factor out the trinomial,

(x+4)(x-3)=0

zero property,

x+4=0, x-3=0,

x=0-4=-4

x=0+3=3

You might be interested in

Which numerical pattern is nonlinear?

kow [346]

Answer:

I think it's the first one

Step-by-step explanation:

8 0

2 years ago

Please! I need help ASAP!

leonid [27]

Photomath might work

5 0

2 years ago

Read 2 more answers

a D.J. at a school dance plans to play dance music for 2 hours. she has 20 requests for songs. Each song plays for 3 1/2 minutes

viva [34]

So, put 2 hours into minutes. You get 120. Now, seeing how you have 20 song requests, and each one takes 3.5 minutes, multiply those two values. Now you have 70. After doing that, just subtract 70 from 120 and get 50.

tada

answer is 50

4 0

2 years ago

Will reward brainliest

LuckyWell [14K]

Answer:

Step-by-step explanation:

Volume of first container = 48 cm³

πr²h = 48 cm³

Second container:

height = (2/3)h

Volume of second container=

$=\pi *r^{2}*(\frac{2}{3}*h)\\\\=\frac{2}{3}*\pi *r^{2}*h\\\\$

=(2/3)* first container's volume {πr²h = 48 cm³}

$=\frac{2}{3}*48\\\\=2*16\\\\$

= 32 cm³

6 0

3 years ago

Help I need to know I only have 15 min <br> What does x equal in x/2=-5

SSSSS [86.1K]

Answer:

x= -10

Step-by-step explanation:

Brainliest please? :)

3 0

2 years ago