Answer:
191 people do not have a briefcase
Step-by-step explanation:
Proportion states that the two ratios or fraction are equal
As per the given condition:
On the subway 8 out of 11 people are carrying a briefcase.
⇒Total number of people = 11
and number of people carrying a briefcase = 8
Remaining number of people that do not carrying a briefcase = 11-8 = 3
Now,
Based on this information, if there are 700 people on the subway
Let x be the number of people do not have a briefcase
By definition of proportion :
Multiply 700 both sides, we have
Simplify:
x = 190.90≈ 191
Therefore, 191 people do not have a briefcase
Answer:
Result at time x = 4 seconds the soccer ball hit the ground.
Step-by-step explanation:
At the moment just before the ball is kicked, it is on the ground and so the height f(x) is zero meters. After the kick, the ball goes through the air and it's path can be described by a (mountain) parabola.
So lets see after how many second (x) the height = 0 once again.
f(x) = 8x-2x^2
f(x) = 0
8x - 2x^2 = 0
Try to write the formula in two terms
-2x * (x - 4) = 0
When a product of two or more terms equals zero, then at least one of the terms must be zero.
Now solve each term = 0 separately, meaning, solve as many equations as there are terms in the product.
Any solution of term = 0 solves product = 0.
Solve the first term:
-2x = 0
Multiply left an right from the = singn with the factor -1 gives this outcome:
2x = 0
x = 0
Solve the second term:
x-4 = 0
x = 4
Result at time x = 4 seconds the soccer ball hit the ground.
x = 4
x = 0
Answer:
Dang someone come help him
Step-by-step explanation:
The density would be 1560.7 lb/cu ft.
