) Jonathan’s weekly pay this year is £960. This is 20% more than his weekly pay last year.
Tess says “This means Jonathan’s weekly pay last year was £768”.
Tess is wrong.
a) Explain why
b) Work out Jonathan’s weekly pay last year.

800 euros

Step-by-step explanation:

First, let's start by finding Jonathan's weekly pay

So, we know that 960 euros is (120/100) times the pay that he got last year.

So we multiply 960 by the reciprocal of 120/100 which is 100/120 or simplified to 5/6.  960*5 = 4800.  4800/6=800.

So Jonathan's weekly pay was 800 euros last year.

Tess is wrong because she multiplied 960 by 4/5 because she thought this meant that Jonathan got paid 4/5 of what he gets per week this year which is what she thinks he got paid last year. You are supposed to multiply it by 6/5 rather than 4/5 because 20 percent more than 100 is 6/5 rather than 4/5.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

it is x equals 3   plese mark me really need it

step-by-step explanation: