2m-5-5= -3m +15
2m -10= -3m+15
2m+3m= 15+10
5m= 25
m= 25/5
m=5
Answer:
the height of the porch is H=1.91 m
Step-by-step explanation:
neglecting friction and assuming that the porch is horizontal, then the horizontal speed is v₀= 4 m/s and it does not change , thus he hits the base at
t= L/v₀ , L= horizontal distance
then for vertical motion , since the vertical velocity vy is 0 , the initial height is H ( the height of the porche) and the final height hf is 0 , we have
hf = H + vy*t - 1/2*g*t²
0 = H + 0 -1/2*g*t²
H = 1/2*g*t² = 1/2*g*(L/v₀)²
replacing values with g= gravity = 9.8 m/s²
H = 1/2*g*(L/v₀)² = 1/2*9.8 m/s² *( 2.5 m/ 4 m/s)² = 1.91 m
therefore the height of the porch is H=1.91 m
Given that Fabio earns 12% commission for every sales he makes, the total amount he earned for selling a TV that cost $550 and VCR for $400 will be:
commission=[percentage commission]/100*[total amount sold]
total amount sold=550+400=$950
commission=12/100*950
=$114
therefore he earned $114 as commission
Answer:
25/100 which can be reduced to 1/4
Step-by-step explanation:
there are 25 cents in a quarter
there are 100 cents in a dollar
so the ratio is 25/100 which can be reduced to 1/4
Answer:
I think this is what is wanted
Step-by-step explanation:
