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3 years ago

A pure substance that is made of only one kind of atom is called _________.

2 answers:

6 0

A pure substance that is made of only one kind of atom is called an element.

An element is a pure substance, which means it is made up of only ONE kind of atom.

nexus9112 [7]3 years ago

6 0

A pure substance that is made of only one kind of atom is called an element I hope this help:) have a nice day

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A snowball has a radius of 7cm. What is the volume of the snowball?

BabaBlast [244]

Answer:

The volume is 1436.8 $in^2$ .

Step-by-step explanation:

-To find the volume of a sphere, you need the formula:

$V = \frac{4}{3} \pi r^3$

-Use the radius for the formula:

$V = \frac{4}{3} \pi 7^3$

-Then, you solve:

$V = \frac{4}{3} \pi 7^3$

$V = \frac{4}{3}$ × $\pi$ × $7^3$

$V = \frac{4}{3} \pi$ × $343$

$V = \frac{1372}{3} \pi = 1436.755$

-Round the answer to the nearest tenth:

$V = 1436.8$

So, therefore the volume is 1436.8 $in^2$ .

7 0

2 years ago

2y = 2x = 8 y = x + 4

padilas [110]

Answer:

I love algebra anyways

the ans is in the picture with the steps how i got it

(hope that helps can i plz have brainlist it will make my day :D hehe)

Step-by-step explanation:

4 0

2 years ago

-5 x=-9 x=11 x=12 x=8 -5x+6(4x+15)=242

Lyrx [107]

$-5x+6(4x+15)=242\qquad|\text{use distributive property}\\\\-5x+(6)(4x)+(6)(15)=242\\\\-5x+24x+90=242\qquad|\text{subtract 90 from both sides}\\\\19x=152\qquad|\text{divide both sides by 19}\\\\x=8$

4 0

2 years ago

Read 2 more answers

Joaquin bought a bookcase on sale for $120, which was two-thirds of the original price. What was the original price of the bookc

weqwewe [10]

180
Because 120 divided by 2 is 60.
And 120 + 60 is 180

7 0

3 years ago

The temperature has been going down at a constant rate.In 4 hours it went down 12 degrees.Which expression best shows the temper

fomenos

Answer:

t = t₀ - 3n

Step-by-step explanation:

Let t be the temperature and t₀ be the initial temperature of the day

Let n be the number of hours after the initial temperature ( t₀) was registered

Let -3 be the constant of change of temperature ( In 4 hours it went down 12 degrees)

Now, let's write down the expression that shows the temperature change each hour, this way:

t = t₀ - 3n

After 2 hours

t = t₀ - 3 * 2 = t₀ - 6

After 5 hours

t = t₀ - 3 * 5 = t₀ - 15

After 3 hours and 30 minutes

t = t₀ - 3 * 3.5 = t₀ - 10.5

5 0

2 years ago