All 28 members in crestview high school’s ski club went on a one-day ski trip. members can rent skis for $16.00 per day or snowboards for $19.00 per day. the club paid a total of $478 for rental equipment. how many members rented skis and how many rented snowboards?

The way I would approach such a question is to put it into equations. My first equation would be 16x+19y=478 which represents $16 on ski's per person and $19 on snowboards must add up to $478 My second would be x+y=28 because the number of skis and snowboards rented must add up to 28 so each person has one item. Next you solve them simultaniously. Gonna use elimination 

16x+19y=478 (1) 

x+y=28 (2) 

16x+16y=448 (3 = equation 2 * 16) (1)-(3) => 3y=30 y = 10. So now we know that 10 people rented snow boards. Just sub that into eq (2) and get x = 18. So 10 people got snow boards and 18 ski's. 

To check, 10x19 = 190 16x18= 228 

190+228=478 which works out perfectly!

c. 27 units.

step-by-step explanation:

we are told that in circle a, ∠bae ≅ ∠dae.

we can see from our given diagram that in and ;

, as these are radii of our given circle.

therefore, by sas congruence postulate.

hence, side be will be equal to side de as corresponding parts of congruent triangles are congruent. so we can set an equation to find the value of x as:

now let us substitute x=17 in the expression for the length of be.

therefore, length of be will be 27 units and option c is the correct choice.