Vinnie works at an entertainment park.
He earns £8.75 an hour.
Last week Vinnie worked for 5 days from 10 am to 6 pm.
Vinnie had one hour lunch break each day.
The hour lunch break is included in the times shown above.
Vinnie does not get paid for his lunch break.
(a) How much did Vinnie earn last week?

262.5 £

Step-by-step explanation: so he worked for 7 hours in day if we ignore the lunch hour

So he worked in this week for

7×5=30 hour

He get

8.75×30= 262.5 £

306.25

Step-by-step explanation:

The question is little easy, from 10AM till 6PM there's 8 hours. If we minus 1 from 8 it will be 7. (minus 1, why? because he is having his lunch and he is not getting paid for it). So in one day he works 7 hours. Let's multiply 7 by 5. (why we are multiplying because he works 5 days). So 7x5=35. Now we know he works weekly 35 hours. Let's multiply 35 by 8.75 (why? because he earns 8.75 an hour) 35x8.75=306.25

step-by-step explanation:

30% of $420 is 0.30($420) = $126 and $420 + $126 = $546.

or, 130% of $420 is 1.3($420) = $546.

notice that this is not the $600 original list price with which we started.

why doesn't this work?

the method does not work because 30% of $420 is not the same amount as the 30% of $600. it may seem obvious when stated this way, but it is a very common error made on problems of this type. we cannot just use the same percent and get back to the original amount because we are taking that percent of a different value.

to work problems of this type correctly, it is generally best to write an equation for the situation and then solve.

example: since (100% – 30%)(original price) = (sale price)

70% of the   (original price) is $420.

0.7x   = 420

equation image indicator

x = 600

the original cost was $600.

we may also solve this problem using the two-step method. working the problem in two steps requires us to use more algebra skills. we have to know that x = 1x (identity property of multiplicationtext annotation indicator) and that 1x – 0.3x = 0.7x (subtracting like terms). then we solve the problem as follows:

(original price) – 30%(original price) = sale price

x – 0.3x = 420

0.7x = $420

equation image indicator

x = 600

the original cost was $600.  

note that with both of the above methods we do obtain the correct original amount.

example: after a 5% pay raise, hermione is earning $22,680 per year. what was she earning before the pay raise?

105% of (original salary) = current salary

1.05x = 22,680

equation image indicator

x = 21,600

hermione earned $21,600 per year before the pay raise.

this is an example so maybe you will get how to at least do it!

ok

step-by-step explanation: