Lily buys 378 crystals for 6 dollars, What is the cost of 109 crystals?

1 answer:

3 0

About $1.73. Since 378 cost six dollars, The price of one equates to be about 0.0158. Using this knowledge, we can multiply by 109 to get roughly 1.7301

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Rudik [331]

N equals to 7.82 (to 2 decimal places)

5 0

4 years ago

Read 2 more answers

What is the center and radius of the circle? (x-3)2 + y² = 4

Kipish [7]

Answer:

center = (3, 0)

radius = 2

Step-by-step explanation:

Standard equation of a circle: $\sf (x-h)^2+(y-k)^2=r^2$

(where (h, k) is the center of the circle and r is the radius)

Given equation:

$\sf (x-3)^2+y^2=4$

Rewrite in standard form:

$\sf \implies (x-3)^2+(y-0)^2=2^2$

Therefore

center = (3, 0)
radius = 2

4 0

2 years ago

find the volume of cubical box . if the cost of painting of outer surface is rs 1440 at the rate rs 15 per mcube

bearhunter [10]

Surface of a cubical box=6(side²)

1)We have to calculate the surface of this cubical box.
Rate=cost of painting / surface ⇒surface=cost of painting/rate

Data:
Rate=$15/m²
cost of painting=$1440

Surface=$1440/($15/m²)=96 m²

2)We find out the length of the side:

Surface of a cubical box=6(side²)

Data:
Surface of a cubical box=96 m2

Therefore:
96m²=6 (side²)
side²=96 m²/6
side²=16 m²
side=√(16 m²)=4 m

3) We find the volume of a cubical box.
volume=(side³)
volume=(4 m)³
volume=64 m³

Answer: the volume of this cubical box would be 64 m³.

3 0

3 years ago

Each of the ten letters in ``MATHCOUNTS'' is written on its own square tile and placed in a bag. What is the probability that a

PIT_PIT [208]

step 1

First, see how many letters in MATHCOUNTS are also in TEACH.

M no

A yes

T yes

H yes

C yes

O no