A film start at 7:15and finished at 9:30pm.How long is the film?

Mathematics

1 answer:

Mrac [35]2 years ago

6 0

Answer:

2 hours and 15 minutes

Step-by-step explanation:

You might be interested in

Suppose 3 <br> <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bb%7D%7B3a%7D" id="TexFormula1" title="\frac{b}{3a}" alt="\frac{b}{3a}

pshichka [43]

0 is the correct answer I think

4 0

2 years ago

100 POINTS PLEASE HELP ASAP!!!!<br> Explain the concept of using cancellation to reduce fractions.

Setler79 [48]

Explanation:

A "reduced" fraction is one that has mutually prime numerator and denominator. That is, the numerator and denominator have no common factors.

A fraction is "reduced" by canceling common factors from numerator and denominator. If "a" is a factor common to the numerator and denominator of a fraction, that fraction can be written with "a" canceled from each:

$\dfrac{ab}{ac}=\dfrac{a}{a}\cdot\dfrac{b}{c}=1\cdot\dfrac{b}{c}=\dfrac{b}{c}$

Here is a numerical example:

$\dfrac{2}{4}=\dfrac{2\cdot 1}{2\cdot 2}=\dfrac{2}{2}\cdot\dfrac{1}{2}=\dfrac{1}{2}$

A numerator factor and a denominator factor "cancel" because their ratio is 1, the identity element for multiplication. Anything times 1 is just that thing.

3 0

3 years ago

Read 2 more answers

Mr Wong predicted that he would sell 45 automobiles He actually sold 48 automobiles What are the values of a

Gnesinka [82]

Answer:

idk

Step-by-step explanation:

8 0

3 years ago

3^x ( x^2 -3) i don't know how to solve this problem

geniusboy [140]

3ˣ (x² - 3)

Basically, just multiply everything together.

Step 1 : 3x × x² = 3x³ because when multiplying exponents, all you're really doing is adding them on top. So, x + 2x = 3x! But, they are exponents, so you get 3x³.

Step 2 : 3x ˣ × (-3) = -9ˣ

Now, our new question is : 3x³ - 9x

You wouldn't simplify this because x³ is NOT the same as x.

~Hope I helped!~

7 0

3 years ago

How does a dot plot help you describe a data set

REY [17]

A dot plot shows results from a range of data, giving it coordiantes so you can plot it on a graph

6 0

3 years ago