Answer:
-3 (2t - 23)
Step-by-step explanation:
She took a total of 60 minutes
she answered both mulitiple choice and extended response in the total time which is 60 minutes
she took 2 minutes on rach multiple choice question and 6 minutes for the extended response
let x=number of multiple choice questions
let y=number of extended response questions
we can deduce that
total time =x*2+y*6
60=2x+6y
also we can deduce
20=x+y
since 20 ia the sum of multiple choice and extended response
for part 2 we just solve the system of equations
60=2x+6y
20=x +y
lets multiply the second equation by 2 so we can get rid of x
60=2x+6y
40=2x+2y
subtracting the two equations from each other to yields
20=0 +4y
y=5
to get x we substitute in one of the equations we derived from question 1
x+y=20
substituting y for its value we get
x+5=20
x=15
Answer:
Radius = 16 cm
Diameter = 32 cm
Step-by-step explanation:
The radius is always going to be half of the diameter, which is a straight line that cuts a circle in half. You can use this formula to solve for the radius:
r = 
However, they've already given us the radius, which is 16 cm, so all you need to do is multiply 16 by 2 to get the diameter. The formula for it is:
d = 2r
dislocated people eorldwide in Millionen per Seat. the unhcr has graphs on this
Answer:
a) 12.5 hours and b) 4 water pumps
Step-by-step explanation:
a) If 6 wp is filled in 15 hours, then:
5 wp is filled in X hours
X hours = (5*15)/6
X = 12.5 hours.
b) If 6 wp is filled in 15 hours, then:
Ywp is filled in 9 hours
Ywp = (9*6)/15
Ywp = 3.6 aprox 4 water pumps
