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3 years ago

Ed buys a vase for £24 and adds 25% onto the price before putting it onto his shop window

Mathematics

1 answer:

irakobra [83]3 years ago

6 0

The answer is 30.

( See picture for equations )

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A crew will arrive in one week and begin filming a city for a movie. The mayor is desperate to clean the city streets before fil

Reptile [31]

Step-by-step explanation:

1 week = 7 days of 24 hours each = 7×24 = 168 hours.

the first team can do 1/700 of the total work per hour.

the second team can do 1/600 if the total work per hour.

if they work together, then 1/700 + 1/600 of the total work can be done per hour.

to add these 2 fractions we need to bring them to the same denominator. and that would be 4200 (LCM of 700 and 600).

1/700 + 1/600 = 6/4200 + 7/4200 = 13/4200

so, together, they can do 13/4200 if the total job in 1 hour.

how many hours will they need together to finish the job ?

well, how often does 13 fit into 4200 (as 4200/4200 is the complete job) ?

4200 / 13 = 323.0769231... hours

so, it will still take a little bit over 323 hours to clean all the streets.

but there are only 168 hours until the film crew starts.

so, no, there is not enough time.

4 0

2 years ago

Which graph best represents f(x)=|x|

jasenka [17]

The graph of f(x) = |x| would look like the image below.

5 0

3 years ago

PLEASE HELP!!

statuscvo [17]

Answer:

Step-by-step explanation:

okay so 13=13 d = t

13×d = t

13×6 = 76

8 0

2 years ago

(1/3)x-4(-1)=2 solve for x.

Elodia [21]

Answer: X = -6

Easy Peasy

3 0

3 years ago

Which of the expressions below can be factored using the difference of squares method?

Dmitry [639]

Answer: A. $9x^2 - 16y^2$ .

Step-by-step explanation:

A difference of squares problem is factored as : $a^2 - b^2 = (a + b)(a - b)$
For this both terms in the form of squares and a minus sign between them.

From all the options only option A has both terms square and they minus sign between them.

Also, $9x^2 - 16y^2= (3x)^2-(4y)^2=(3x+4y)(3x-4y)$

Here a= 3x and b= 4

Hence, the correct answer is A. $9x^2 - 16y^2$ .

3 0

3 years ago