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3 years ago

How do you find the amount of nuetrons in an atom?

2 answers:

8 0

The mass number is the sum of protons and neutrons in the nucleus. The atomic number is the number of protons. Therefore, you can subtract the atomic number from the mass number to find the number of neutrons.

weeeeeb [17]3 years ago

4 0

You would subtract the atomic number from the mass weight. <span />

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How many 6s go into 143

Maurinko [17]

Well it would be 23.8 or 24

5 0

3 years ago

Read 2 more answers

(3x/4)>51 ( line underneath >)

blsea [12.9K]

quick and easy steps that you (may understand it better)

So, firstly let's multiply the fraction $(\frac{4}{3} )$ on your sides

$\frac{4}{3} ( \frac{3}{4}x )$ ← cancel this out because it would give you the quotient of $1$

$\frac{4}{3} (52)$ keep this because this would give you $68$

$Answer: x \geq 68$

$good \\ luck \\ on \\ your \\ assignment \\ \\ \\ \\ Enjoy \\ your \\ day \\ \\ \\ \\ MeIsKaitlyn :)$

8 0

3 years ago

Find the area of the circle. Round to the nearest whole number

GuDViN [60]

Hello!

$\mathcal{GIVEN:}$

Diameter of the circle = 12 cm

$\mathcal{TO\:FIND:}$

Area of the Circle

$\mathcal{SOLUTION:}$

A=πr²

Hey! We have the diameter, not the radius.

Don't panic. In order to find the radius, we should divide the diameter by 2.

So, the radius is 6.

Plug it into the formula:

A=π(6)²

A=π(36)

A≈113 cm

Hope it helps!

Good luck and enjoy your day!

-SnowFlake

8 0

3 years ago

Find the solution to the system of equations y=−7x+3y=−x−3

babunello [35]

Answer:

x=1, y=-4. (1, -4).

Step-by-step explanation:

y=-7x+3

y=-x-3

-------------

-7x+3=-x-3

-7x-(-x)+3=-3

-7x+x=-3-3

-6x=-6

6x=6

x=6/6

x=1

y=-1-3=-4

3 0

4 years ago

ariana's 150g bag of trail mix is x% raisins. brandon's 250g bag of trail mix is y% raisins. they combine the two mixes together

Tema [17]

Answer:

(3x+5y)/8

Step-by-step explanation:

The total amount is 150+250=400

We then do (3x+5y)/2 × 1/400

This equals (3x+5y)/800

We multiply that by 100 giving us the final answer.

7 0

3 years ago