Answer:

Step-by-step explanation:


For every 9 kids 5 are girls
there are 3 sets of 9
so 5 x 3 = 15
there are 15 girls
Answer:
I will do A for U
I have 5 apples then got 18 more, so how many apples do I now Have?
Step-by-step explanation:
Answer:
.
Step-by-step explanation:
Two angles are supplements of one another if their sum is
.
Two angles are complements of one another if their sum is
.
Let
be the measure of the angle in question.
The supplement of this angle would be
.
The complement of this angle would be
.
According to the question:
.
Solve this equation for
:
.
Thus, this angle would measure should
.
The supplement of this angle would measure
. The complement of this angle would measure
.
Three times the complement of this angle would be
, which is indeed
greater than the supplement of this angle.
Answer:
The time taken for the flare to hit the ground is approximately 10.7 seconds.
Step-by-step explanation:
Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation
models the h height at t seconds of the flare.
To find : How long will it take for the flare to hit the ground?
Solution :
The equation
models the h height at t seconds of the flare.
The flare to hit the ground when h=0.
Substitute in the equation,

Applying quadratic formula, 
Where, a=-16, b=160 and c=120





Reject the negative value.
Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.