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3 years ago

Sams new room is a square, and each side measures 15 feet. What is the area of the room?

Mathematics

2 answers:

Deffense [45]3 years ago

7 0

The room is 225 square feet

photoshop1234 [79]3 years ago

3 0

The answer is 225 I'm pretty sure

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How to solve .5x+y=5

uranmaximum [27]

Answer: y is 5 and x is 1

Step-by-step explanation:

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4 years ago

Sally finds a coin with a radius of 1.5 centimeters and a thickness of 0.25 cm. It has a measured mass of 18.54 grams. How can S

mote1985 [20]

Answer:

Silver

Step-by-step explanation:

Find the volume of the coin

<u>Volume of a cylinder</u>

$\textsf{V}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

Given:

r = 1.5 cm
h = 0.25 cm

Substituting given values into the formula to find the volume:

$\sf \implies V=\pi (1.5)^2(0.25)$

$\sf \implies V=0.5625 \pi \:cm^3$

Find the density of the coin given it has a measured mass of 18.54 g

<u>Density formula</u>

$\sf \rho=\dfrac{m}{V}$

where:

$\rho$ = density
m = mass
V = volume

Given:

m = 18.54 g
$\sf V=0.5625 \pi \:cm^3$

Substituting given values into the density formula:

$\implies \sf \rho=\dfrac{18.54}{0.5625 \pi}$

$\implies \sf \rho=10.49149385\:g\:cm^{-3}$

Given:

$\textsf{Density of Lead}=\sf 11.3\:g\:cm^{-3}$

$\textsf{Density of Silver}=\sf 10.49\:g\:cm^{-3}$

Therefore, as $\sf \rho=10.49\:g\:cm^{-3}$ the coin is made from silver.

4 0

2 years ago

2/3 (5 x 4) ÷ 3 + 6/7 =

Lerok [7]

334/63
if u want the mixed fraction it'd be 5(19/63)

6 0

3 years ago

Read 2 more answers

Solving Exponential equation 7^7x+5 = 2^x-1

JulijaS [17]

Answer:

x=-6/7^7-2

Step-by-step explanation:

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3 years ago

A rectangular poster is 50 cm long and 25 cm wide. If 1 cm is approximately .4 inches What is the perimeter of the poster

gulaghasi [49]

It will be 600in or 150cm.
Reason is perimeter is just adding up the sides so if you wanna find it in inches then you multiply 4 by each side and if it’s just cm then just add them all up

3 0

3 years ago