Quick Check
upplementary Angles
Examine the intersection of these two lines:
Which of the following pairs of angles are
supplementary? Select all that apply.
1
1
0 21 and 22
3
4
2
0 21 and 23
0 21 and 24
22 and 23
O 22 and 24
23 and 24

1&3

1&4

2&3

2&4

are all supplementary angles

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!