1) If a price is increased by 12.5% what is the new price as a percentage of the old price? 2) The amount of money in Joe's savings account is increased by 8% each year.
Given that he has £500 in 2016, work out how much Joe will have in 2021.
3) Write the number on the dotted line to make the calculation correct.
50% of = 9.7
(1 mark)
4)Luke's car depreciates in value 12%by per year.
Luke bought his car for £ 18000.
work out how much his car will be worth after years
5) A price is decreased by 5% and is now £266.
Work out the original price.
6) Alex's car depreciates in value by 18% per year.
Alex bought his car for £34000.
Work out how much his car will be worth after 5 years.
7)A price is increased by 5% and is now £588.
Work out the original price.
8)Ben's car depreciates in value by 15% per year.
Ben bought his car for £22000.
Work out how much his car will be worth after 6 years.

m a t h w a y. c o m

step-by-step explanation:

stew reads at the fastest rate of 265 words per minute.

step-by-step explanation:

it's a given that felicia reads at 260 word per minute and on connie's graph we can see that she reads 200 words per minute. since stew's table tells us that he read 795 in 3 minutes, we can divide 795 by 3 to find out how many words he reads per minute.

795/3 = 265

stew reads 265 words per minute - he reads at the fastest rate since felecia reads at 260 words per minute and connie reads at 200 words per minute.

stew (265) > felecia (260) > connie (200)

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places

step-by-step explanation:

a'(12.5,11.25)

slope=(y1-y2)/(x1-x2)