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2 years ago

Paper clips and sand is a Mixture or Solution?

Mathematics

1 answer:

Arte-miy333 [17]2 years ago

7 0

Answer:

solution

Step-by-step explanation:

you can separate it back into its original forms

(Reminder: mixtures cannot be separated and cannot return to its original forms. solutions can be separated and can return to its original forms)

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A certain hurricane travels at 20.88 kilometers per hour. The distance from Cuba to Key West is 145 kilometers. Write and solve

anyanavicka [17]

V = 20.88 km / h ( velocity )
d = 145 km ( distance )
Velocity formula: v = d / t
t = d / v ( time )
t = 145 km : 20.88 km/h
t = 6.94444 h
We have to multiply 0.94444 by 60 minutes.
0.94444 · 60 = 56.67 ≈ 56 minutes 40 seconds
Answer: It would take 6 hours 56 minutes and 40 seconds.

4 0

3 years ago

Explain how to use the Pythagorean Theorem to find the missing length of a right triangle.

tino4ka555 [31]

Pythagorean theorem.

a^2+b^2=c^2

This means that the square of the length of the 2 legs of a right triangle added together = the square of the length of the hypotenuses or diagonal.

If you know 2 of the values in the 3 variables a,b,c what would you do to find the missing variable value?

I will not write the exact answers to this problem. I think you can figure how to write it out yourselves.

6 0

2 years ago

10. Simplify the rational expression by rationalizing the denominator. 3 sqrt 160/sqrt 1350x A) 2 sqrt 15x/15x B) 3 sqrt 160/135

Viefleur [7K]

The simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

First we must simplify the expression:
$\frac{3 \sqrt{160} }{\sqrt{1350x} } = \frac{12 \sqrt{10} }{15 \sqrt{6x} } = \frac{4 \sqrt{10} }{5 \sqrt{6x} }$

Then we factor the rational parts and cancel it out:
$\frac{4 \sqrt{2} \sqrt{5} }{5 \sqrt{2} \sqrt{3x} } = \frac{4\sqrt{5} }{5\sqrt{3x} }$

Then we rationalize the expression:
$\frac{4\sqrt{5} }{5\sqrt{3x} } * \frac{\sqrt{3x} }{\sqrt{3x} } = \frac{4 \sqrt{15x} }{5*3x} = \frac{4 \sqrt{15x} }{15x}$

Finally, the simplified expression by rationalizing the denominator is (C) $\frac{4 \sqrt{15x} }{15x}$ .

7 0

3 years ago

A car can travel 393.3 miles on 28.1 gallons of gas. How far can it travel on 16.7 gallons?

grigory [225]

In the early months of some year one site added 0.4 million new accounts every day, At this rate , how many days would be needed to add 24 million new accounts?

8 0

2 years ago

Simplify! (a^3b)(abc) A) a^2bc^5 B) a^4b^2 C) a^4b^2c D) a^4bc

fenix001 [56]

Answer:

$a^{3}$ *b*(abc)= $a^{4} * b^{2} * c$

Step-by-step explanation:

you use the distributive property

7 0

2 years ago

Read 2 more answers