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2 years ago

The metal in a penny is worth about 0.505 cents. How many cents is this written as a fraction in simplest form?

Mathematics

1 answer:

Illusion [34]2 years ago

8 0

Answer:

101/200

Step-by-step explanation:

Take the decimal out an put the number over 1000.

= 505/1000

Find a common denominator

505/5 = 101

1000/5 = 200

Reduce

505/1000 = 101/200

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The medians of triangle XYZ intersect at Point P. If PY=12, what is VY?

AlekseyPX

Answer:

Step-by-step explanation:

PY = $\frac{2}{3}$ YV

$\frac{2}{3}$ YV = 12

VY = 18

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2 years ago

How to find the mean of percentages

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2 years ago

Explain how you know which method you should use to solve a rational equation.

notsponge [240]

<u>Methods to solve rational equation:</u>

Rational equation:

A rational equation is an equation containing at least one rational expression.

Method 1:

The method for solving rational equations is to rewrite the rational expressions in terms of a common denominator. Then, since we know the numerators are equal, we can solve for the variable.

For example,

$\frac{1}{2}=\frac{x}{2}\Rightarrow x=1$

This can be used for rational equations with polynomials too.

For example,

$\frac{1+x}{x-3}=\frac{4}{x-3}\Rightarrow(1+x)=4 \Rightarrow x=3$

When the terms in a rational equation have unlike denominators, solving the equation will be as follows

$\frac{x+2}{8}=\frac{3}{4}$

$\Rightarrow\frac{x+2}{1}=\frac{3\times8}{4}\Rightarrow{x+2}=2\times3$

$\Rightarrow{x+2}=6\Rightarrow x=6-2\Rightarrow x=4$

Method 2:

Another way of solving the above equation is by finding least common denominator (LCD)

$\frac{x+2}{8}=\frac{3}{4}$

Factors of 4: $1\times2\times2$

Factors of 8: $1\times2\times2\times2$

The LCD of 4 and 8 is 8. So, we have to make the right hand side denominator as 8. This is done by the following step,

$\Rightarrow\frac{x+2}{8}=\frac{3}{4}\times{2}{2}$

we get,

$\Rightarrow\frac{x+2}{8}=\frac{6}{8}$

On cancelling 8 on both sides we get,

$\Rightarrow(x+2)=6\rightarrow x=6-2\rightarrow x=4$

Hence, these are the ways to solve a rational equation.

7 0

2 years ago

I need help 3/2x-5=7

Leviafan [203]

The answer to that is x=8

5 0

3 years ago

For the linear equation y=-10+5x the x intercept is ?

svet-max [94.6K]

Answer:

(2, 0)

Step-by-step explanation:

X intercept is when y = 0.

0 = -10 + 5x

5x = 10

x = 2

6 0

3 years ago