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2 years ago

Help me plz with this problem

Mathematics

1 answer:

il63 [147K]2 years ago

4 0

The answer would be 80/100
explanation: of you simply 80/100 using 10
in other words 80/10 which equals 8; 100/10 which equals 10. From those simplications you would be left with 8/10

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Maria needs to buy 12 wine glasses. write an expression of the cost of 12 glasses at p dollars each.

irinina [24]

12p thats it because you are buying 12 glasses a the cost of p example 12 glasses for 5 dollars would be 12(5)=60

5 0

3 years ago

For which distributions is the median the best measure of center?

mr_godi [17]

Answer:

Step-by-step explanation:

I think it would be the 3rd one because they are even on each side............

6 0

3 years ago

The volume of a cylinder is V = 1/3 πr2h. If the radius is doubled and the height is halved, what will be the ratio of the new v

ozzi

<span>V(o) = 1/3 πr²h - old volume
</span>V(n) = 1/3 π(2r)²(h/2)=1/3 π(2r)²(h/2)=1/3*4/2* πr²h=1/3*2* πr²h
V(n)/V(o)=1/3*2* πr²h/1/3 πr²h=2/1
V(n)/V(o)=2/1 - ratio
the volume will be doubled

8 0

3 years ago

Read 2 more answers

HELP PLEASE <br><br>i dont understand at all...

bija089 [108]

An exponent signifies repeated multiplication.

$x\cdot x\cdot x=x^{3}$ the factor x is repeated 3 times

Exponents can be added and subtracted to express the effects of multiplication and division.

$\dfrac{x\cdot x\cdot x\cdot x\cdot x}{x\cdot x\cdot x}=\dfrac{x^{5}}{x^{3}}\\\\=\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x}\cdot x\cdot x=x\cdot x\\\\=x^{(5-3)}=x^{2}$

The addition and subtraction of exponents works the same even when there are more denominator factors than numerator factors.

$\dfrac{x\cdot x\cdot x}{x\cdot x\cdot x\cdot x\cdot x}=\dfrac{x^{3}}{x^{5}}=\dfrac{1}{x^{2}}\\\\=x^{(3-5)}=x^{-2}$

That is, a negative numerator exponent is the same as a positive denominator exponent and vice versa. You can move a factor with an exponent from denominator to numerator and change the sign of the exponent, and vice versa.

Your expression has 3 in the denominator with a negative exponent. It can be moved to the numerator and the exponent changed to positive:

$\dfrac{1}{3^{-2}}=3^{2}\\\\=3\cdot 3=\bf{9}$

8 0

3 years ago

Find both unit rates.

Alexus [3.1K]

$27 / 4 = 6.75 dollars per hour

4 / 24 = 0.148 = 0.15 hours per dollar

Answer is A

3 0

3 years ago