19 12 A company makes 12 different types of television. The cost (in dollars) and screen size (in centimetres) of each type of television are shown in the scatter diagram. 900 800 700 600 500 Cost ($) 400 300 200 100 0 40 50 60 70 80 90 100 110 120 Screen size (cm) (a) Write down the cost of the television that has a screen size of 65 cm. $ [1] (b) The company is introducing a new television with a screen size of 85 cm. Put a ring around the cost that you think would be most appropriate for the new television. $320 $530 $690 $800 Explain your answer.

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!

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step-by-step explanation:

gedfgb nbgfrezrdfgbn bgfderdfgbvn bvfdsvcb bvfdfgb gfdgb gfr

step-by-step explanation:

why? because i noticed a pattern. 60 120. those numbers without the zero, make the 6 times tables leaving your answer to be b since 6 times 4 is 24 and adding a zero making it 240.

the answer is d

for problems like this theres an app, its photomath that explains the problem and gives the answer hope i