The height of a triangle is 1 cm less than twice the length of the base. let x = the length of the base. write a function rule for the area of the triangle and determine the area if the length of its base is 16 cm. a. a=12x(2x−1); 248cm2 b. a=12xh; 128cm2 c. a=12x(x−2); 112cm2 d. a=122x(x−1); 240cm2

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:

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something over 10 so ? /10

step-by-step explanation: