Answer:
C, 105
Step-by-step explanation:
45 divided by 3 is 15 so 15 x 7 = 105 minutes.
Answer:
its a or c
Step-by-step explanation:
ik but you figer it out
Answer:
17
Step-by-step explanation:
because there are numbers involved
They can only sit one way because they are still in a row
Or did you mean like how many different ways can they sit?
If triangles PQR and STU are similar then PQ corresponds to ST and PR corresponds to SU. Therefore, PQ/ST=PR/SU
Considering that, PQ= 7-x, ST= 13-x, PR= x²+5 and SU= x² +20
therefore, (7-x)/(13-x)= (x²+5)/(x²+20)
cross multiplying,
7x² +140-x³+20x =13x²+65-x³-5x
combining the like terms,
6x² +15x -75=0
solving for x,
x = 5/2 or -5