A rectangular room is four times as long as it is wide, and its perimeter is 70 meters. Find the width of the room.

Answers

Answer 1

Answer: W=3/4L
P=2L=2W
70=2L+2(3/4L)
70=2L+6L/4
70=2L+1.5L
70=3.5L
L=70/3.5
L=20 FT. ANS. FOR THE LENGTH.
W=4/4*20=15 ANS. FOR THE WIDTH

i think.

Answer 2

Answer: 2(4w) + 2w = 70
8w + 2w = 70
10w = 70
W= 7 m

Again, you just have to learn to make the equations. :)

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The value of a boat, in dollars, x years after its purchase is represented by the function.f(x)=10,000(0.73)^x

What is the average decrease in value per year between years 1 and 2?

Answers

Given the function f(x) = 10000(0.73)^x

Where y is The value of a boat, in dollars, x years after its purchase
at x = 1
f(1) = 10000(0.73)^1
f(1) = $7300
at x = 2
f(2) = 10000(0.73)^2
f(2) = $ 5329
so the decrease
D = $7300 - $ 5329
D = $ 1971

Answer:

The correct answer is $1971.

I just took the test and got it right.

150 volts is what percent of 120 volts

Answers

150 = x% of 120

150 = (x/100) * 120

150/120 = x/100

1.25 = x/100

1.25*100 = x

125 = x

x = 125

Therefore 150 volts is 125 % of 120 volts.

% of 120V = (150V/120V) x 100 = 125%

Therefore 150 volts is 125% of 120 volts

The sophomore students have large lockers that line the school’s northern hallway in a single row. A group of 5 friends agreed to choose lockers next to each other. How many different ways can the students choose adjacent lockers?120 ways
5 ways
97 ways
25 ways

Answers

Hello,

We choice a student betheen the 5

We have 4 students possible to put behind

We have 3 students possible to put behind

We have 2 students possible to put behind

Thus 4*3*2*1=24 posibilities but 5 choice possibles for the first student

5*24=120
(or 5!)

But if there are n lockets in the the school’s northern hallway

(n-5)*120 is the right number.

Any way the answer is 120 ways.

In an expression
(8/9) squared (-81)+3/5dividedby-9/10

Answers

If you wanted to calculate it, there it is:
$((8)/(9))^2 (-81)+((3)/(5))/((-9)/(10)) = (64)/(81)*(-81)+(3)/(5)*(10)/(-9) = -64+(-2)/(3)= \n =-64-(2)/(3)=(-192-2)/(3)=(-194)/(3)$

Answer: -64.0066666667

(((8\9)squared)*(-81))+(((3\5)\(-9))\10)

Step-by-step explanation:

1 point1) Taylor and her family took a road trip. She explains that the equation y =
60x describes the proportional relationship between the number of miles,
y, her family traveled, to the number of hours, x, the trip took. Which
statement represents the same proportional relationship? *

Taylor's family traveled 50 miles in 1 hour.

Taylor's family traveled 120 miles in 2 hours.

Taylor's family traveled 180 miles in 4 hours.

Taylor's family traveled 200 miles in 5 hours.

Answers

Answer:

120 miles in 2 hours

Step-by-step explanation:

120 = 60(2)

If the area of a circle is 58 square feet, find the circumference

Answers

Hi there! C=2πa=2*π*58=26.99621 ft. Therefore, the answer is 27 ft.

It is 58 feet , You use the formula 3.14 x D .....

Hope it help ya .

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