1 pizza costs £3.20 more than a bottle of coke. The total cost of the items is £19.40 for 3 pizzas and 1 bottle of coke How much does a pizza cost? How do you work this out please?

Step-by-step explanation

p - the price of pizza

c- the price of a bottle of coke

p = c+3.2

3p + c=19.4

3* (c+3.2)+c=19.4

3*c+3*3.2+c=19.4

3c+c+9.6=19.4

4c+9.6=19.4

-9.6 -9.6

4c=9.8

:4. :4

c=2.45

p=2.45+3.2=5.65

verify : 3*5.65+2.45=16.95+2.45=19.40

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!

i would be happy to . most people on would also love to i'm sure. if you just want someone who has done algebra before and want a little more personal relationship than just begging strangers for , i can certainly be of service. i do have college myself so i might not be 24/7.