Find the sale price to the nearest cent $53 pair of jeans with a 20% discount

Mathematics

1 answer:

Artist 52 [7]2 years ago

8 0

Answer: It is $42.4

Step-by-step explanation: Multiply (0.20)(53), you get 10.6, now that's the price that is discounted, so subtract that from the total, to get $42.4. If you want to check your answer, do 42.4/53 and you would get 0.80, or 80%. That is what you should get since you have a 20% discount from 100% of a product.

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Evan washes two types of vehicles it takes him 30 minutes to wash a car and 40 minutes to wash a truck he charges $12 to wash a

a_sh-v [17]

There is no way that the amount of cars and trucks can evenly fit into the 270 minutes and $150.
The closet i got was
A) 6 trucks and 4 cars for $150 and 390 minutes
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3 years ago

Lim x approaches 0 (1+2x)3/sinx

jok3333 [9.3K]

Interpreting your expression as

$\dfrac{3(1+2x)}{\sin(x)}$

when $x$ approaches zero, the numerator approaches 3:

$3(1+2x) \to 3(1+2\cdot 0) = 3(1+0) = 3\cdot 1 = 3$

The denominator approaches 0, because $\sin(0)=0$

Moreover, we have

$\displaystyle \lim_{x\to 0^-} \sin(x) = 0^-,\quad \displaystyle \lim_{x\to 0^+} \sin(x) = 0^+$

So, the limit does not exist, because left and right limits are different:

$\displaystyle \lim_{x\to 0^-} \dfrac{3(1+2x)}{\sin(x)}= \dfrac{3}{0^-} = -\infty,\quad \displaystyle \lim_{x\to 0^+}\dfrac{3(1+2x)}{\sin(x)}= \dfrac{3}{0^+} = +\infty$

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3 years ago

Jose needs to memorize words on a vocabulary list for French class. He has memorized 20 of the words, which is four-fifths of th

Stella [2.4K]

Answer:

Explanation:

In order to solve this the easiest way you can use equivalent fractions.

$\frac{4}{5} = \frac{20}{?}\\$

Since 4 times 5 equals 20 we can multiply 5 times 5 to get our answer.

$\frac{4}{5} * \frac{5}{5} = \frac{20}{25}$

25 is the answer. But, if we couldn't have gotten to 20 through the multiplication we could use a proportion. That would look like the initial problem but instead of a "?" we would use a variable. I will use <em>t</em> for total.

$\frac{4}{5} = \frac{20}{t}\\$