Angle q and angle r are supplementary angles. if the measure of angle q = 2xº and the measure of angle r = (x + 81)", then what does x equal?

33°

Step-by-step explanation: Because Angles Q and R are supplementary, we can say 2x + x + 81° = 180°

3x + 81° = 180°     Subtract 81° from each side

3x = 99°     Divide by 3

x = 33°

you should at least use a calculater

step-by-step explanation:

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!