All categories

3 years ago

Please help asap 25 pts

Mathematics

2 answers:

maria [59]3 years ago

5 0

The answer is B hope this helped

damaskus [11]3 years ago

4 0

$\text{The formula of a perimeter of a rectangle:}\\\\P=2(w+l)\\\\\text{we have}\\w:l=3:2\to w=\dfrac{3}{2}l,\ P=55\ cm\\\\\text{substitute}\\\\55=2\left(\dfrac{3}{2}l+l\right)\\\\55=2\cdot\left(\dfrac{3}{2}l+\dfrac{2}{2}l\right)\\\\55=2\cdot\dfrac{5}{2}l\\\\55=5l\ \ \ \ \ |:5\\\\l=11\ cm\\\\w=\dfrac{3}{2}\cdot11=\dfrac{33}{2}=16.5\ cm\\\\Answer:\ b.\ 11\ cm,\ 11\ cm,\ 16.5\ cm,\ 16.5\ cm$

You might be interested in

Solve for t: <br> -4(t+4)=-8t-24

kotykmax [81]

Answer:

$\rm{-2$

Step-by-step explanation:

Hi there!

$\rm{-4(t+4)=-8t-24}$

$\rm{-4t-16=-8t-24$

$\rm{-4t+8t=-24+16$

$\rm{4t=-8$

$\rm{-2$

Thus, $-2$ is our final answer.

Hope it helps! Enjoy your day!

$\bold{GazingAtTheStars}$

4 0

2 years ago

Read 2 more answers

How to solve a log equation with variable in the exponent?

GREYUIT [131]

Example...

4^x = 16
log(4^x) = log(16)
x*log(4) = log(16)
x = log(16) / log(4)

6 0

4 years ago

Need this soon please

GalinKa [24]

Answer: pretty sure -7

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Which of the following is the correct usage of the distributive property of the expression: 3(x+1) ?

Alchen [17]

Answer: =3x+3

Step-by-step explanation:

$3\left(x+1\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

$3\left(x+1\right)=3x+3\cdot \:1$

$=3x+3\cdot \:1$

$\mathrm{Multiply\:the\:numbers:}\:3\cdot \:1=3$

$=3x+3$

3 0

3 years ago

There is a flu outbreak at your school that starts with 10 people. The number of ill students increases by 20% each hour. Write

mihalych1998 [28]

Answer:

y = (10 * 0.2) ^ x

Y = (2)^x

Y = 2^x + 10

6.5 hours

Step-by-step explanation:

Y is the number of people at the school who have been infected with the flu. The 10 is the initial number of infected students which is a constant so it does not change. The 0.2 is the rate of increase, or 20%. The x exponent is the number of hours so that is a changing number. Your answer is 2 to the power of the number of hours which is x. Add ten after that to get your number. to get 100 people ill, it would take about 6.5 hours.

3 0

3 years ago