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2 years ago

4.

Mathematics

1 answer:

Simora [160]2 years ago

8 0

M >= 85. The >= sign means greater than or equal to.

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What is 25% of 400 5% of 20

stiks02 [169]

Hello there!

What is 25% of 400?

$\frac{25*400}{100}$

= $\frac{10,000}{100}$

= 100

Thus,

25% of 400 is 100

What is 5% of 20?

Well, we just need to follow the previous steps.

$\frac{5*20}{100}$

= $\frac{100}{100} = 1$

Thus,

5% of 20 is 1

I hope this answer helps. Let me know if you have additional questions about the answer. As always, it is my pleasure helping student like you.

5 0

2 years ago

How would I solve this equation for mass (m)?

zaharov [31]

Simple...

you have: $F= \frac{G m^{2} }{ d^{2} }$

You want to find m-->>>

1.)Isolate m

$d^{2} *F= \frac{G m^{2} }{ d^{2} } * d^{2}$

Leaving you with...

F* $d^{2}$ = $G m^{2}$

Keep isolating m-->>>

$F* d^{2} =G m^{2}$

$\frac{F* d^{2} }{G} = \frac{G m^{2} }{G}$

Square root to solve what just m is-->>>

$\sqrt{ \frac{F* d^{2} }{G} } = \sqrt{ m^{2} }$

= $\sqrt{ \frac{F* d^{2} }{G} } =m$

That is how you solve for m...

Thus, your answer.

7 0

2 years ago

One-third of a number added to itself equals 3 times the difference of the number and seven.

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

Do this step by step.

Let the number = x

1/3 of a number = 1/3 x

Added to itself 1/3x + x

3*(x - 7)

So the equation is

1/3x + x = 3(x - 7) Remove the brackets. Collect 1/3x and x

4/3 x = 3x - 21 Multiply both sides by 3.

4x = 3*(3x - 21) Remove the brackets again

4x = 9x - 63 Subtract 9x from both sides

-5x = -63 Divide by -5

x = -63/-5

x = 12.6

3 0

2 years ago

Can anyone solve this?

Elis [28]

Answer:

X = 4

Y = 30

i think.

Step-by-step explanation:

3 0

2 years ago

What is the product (<img src="https://tex.z-dn.net/?f=%287%5Csqrt%7B8%7D%20%2B3%5Csqrt%7B12%7D%20%29%287%5Csqrt%7B8%7D%20-3%5Cs

tangare [24]

The product should be 284.

4 0

2 years ago