List A
4+4y=8y
4 (y-1)= 4
4y+1=5y
List B
4y-4=y
4 (y+1)=5y
1+4y=5y
2 years will be 80 cats (20 x 2 = 40 (year 1) and 40 x 2 = 80 (year 2))
3 years will be 160 (80 x 2 = 160)
5 years will be (160 x 2 = 320 (year 4) and 320 x 2 = 640 (year 5)) So 5 years will be 640
Answer:
x = 17
, y = 34
Step-by-step explanation:
Since the triangle is right use trig ratios to find x and y
note exact values sin30° =
, tan30° = 
sin30° =
= 
multiply both sides by y
y sin30° = 17 ( divide both sides by sin30° )
y =
= 34
tan30° =
= 
multiply both sides by x
x tan30° = 17 ( divide both sides by tan30° )
x =
= 17
Answer:
23
Step-by-step explanation:
x+x+1=x+2=72
3x+3=72
3x=69
x=23
23+24+25=72
Answer012345
Step-by-step explanation: