Step-by-step explanation:
20≤F≤80
20=9/5c+32
-12=9/5c
-60=9c
-6.7=c
80=9/5c+32
48=9/5c
240=9c
26.7=c
-6.7≤C≤26.7
Answer: 4 gallons will be needed.
Step-by-step explanation:
The bottom of the pool is rectangular in shape. The formula for determining the area of a rectangle is expressed as
Area = Length × width
Olympic-sized swimming pool of uniform depth measures 50 meters by 21 meters. The area of the bottom would be
Area = 50 × 21 = 1050 m²
The bottom of the pool is to be treated with a sealer, and one gallon of the sealer covers 300 square feet of surface. This means that the number of gallons of sealer required for the job would be
1050/300 = 3.5gallons Approximately 4 gallons to the nearest gallon
Answer:
A
Step-by-step explanation:
2x < 8
x < 8/2
x < 4
The sign stays in the same direction since you are dividing by positive. The circle is not filled in because x is NOT less than or equal to 4.
Answer:
d + c = 12
d = 2c - 3
Step-by-step explanation:
Given that :
Total number of dogs and cats = 12
Let :
Dogs = d ; Cats = c
d + c = 12
Number of dogs = 2 times the number of cats less than 3 ;
Mathematically,
d = 2c - 3
