Answer:
x = 
Step-by-step explanation:
The line from the vertex to the base is a perpendicular bisector and divides the triangle into 2 right triangles.
Consider the right triangle on the left with base 2
Using Pythagoras' identity
The square on the hypotenuse (x) is equal to the sum of the squares on the other 2 sides, that is
x² = 2² + 3² = 4 + 9 = 13 ( take the square root of both sides )
x = 
Answer:
79
Step-by-step explanation:
Answer:
11 hours 15 mins
Step-by-step explanation:
Wilma & Betty both have a pool that holds 10500 gallons of water each.
Wilma's garden hose fills at the rate of 700 gallons per hour.
Betty's garden hose fills at a rate of 400 gallons per hour.
Volume = Rate * time
Time = Volume /rate
The time it will take for Wilma's pool to be filled = 10500/700
= 15 hours
The time it will take for Betty's pool to be filled = 10500/400
= 26.25hours
= 26 hours 15 minutes
it will take Betty (26.25 - 15) to fill her pool than Wilma.
= 11.25hours
= 11 hours 15 mins
Answer:
-2x <= x < 3
Step-by-step explanation:
Subtract 4 from all sections to isolate the x and then divide everything by 3 to make there be only 1 x
Answer:
40 black ink cartridges and 19 colored ink cartridges
Step-by-step explanation:
Let
represent the number of black printer ink cartridges sold. Let
represent the number of color printer ink cartridges sold.
Set up a system of equations:


Substitute:


⇒ 40 black ink cartridges, 19 colored ink cartridges (ans)