Bicycle has 2 wheels and 2 pedals
tricycle has 3 wheels and 2 pedals
EQ 1 : 2b + 2t = 170 pedals
EQ 2: 2b +3t = 206 wheels
subtract EQ 1 from EQ 2
2b +3t = 206 - 2b + 2t = 170 = t=36
there were 36 tricycles
36 x 2 = 72 pedals
170 pedals - 72 = 98 pedals left
98/2 = 49 bicycles
36 Tricycles and 49 bicycles
Answer:
(blank) > 5600
Step-by-step explanation:
Answer:
f^-1 (x)=1/2x+5
Step-by-step explanation:
y=2x-10
x=2y-10
2y=x+10
y=1/2x+10/2
y=1/2x+5
Step-by-step explanation:
Increase the number by 5% of its value.
Percentage increase = 5% × 220
New value =
220 + Percentage increase =
220 + (5% × 220) =
220 + 5% × 220 =
(1 + 5%) × 220 =
(100% + 5%) × 220 =
105% × 220 =
105 ÷ 100 × 220 =
105 × 220 ÷ 100 =
23,100 ÷ 100 =
231
Answer:
13/12
Step-by-step explanation:
common multiple is 12 the times the numerator of each fraction to get an equivalent fraction, then add them together