Answer:
4 miles to the nearest mile.
Step-by-step explanation:
Circumference of the track = 2 pi r
= 2*pi*0.2 = 1.257 miles
Ellie ran 3 times around the track so
the distance she ran is 3* 1.257
= 4 miles
The answer is:t=4 You welcome
i) Area = length x width
=250 x 100
= 25000 cm2
ii) it is a square so the sides are equal
Area = 10 x 10
= 100cm2
iii) 25000/100
250 tiles will be needed
Iv) one tile is 4.75 dollars
Total tiles are 250
Cost for tiling
=250 x 4.75
=1187.5
Hope this helps
If we do it algebraically, we get
x + y = 420
This is the simplest equation. You see now this is a linear pair in two variables. Thus, there will be infinitely many solutions.
E.g - 419 + 1 = 420
42 * 10 = 420
21 * 20 = 420
etc,....
Answer:
Option B. 9 ml.
Step-by-step explanation:
Recommended dose of a drug = 5 mg/kg body weight.
weight of the cat = 8 lb
1 lb = 0.4536 kg.
8 lb = 0.4536 × 8 = 3.6288 kg. ≈ 3.6 kg
A solution contains a concentration of 2 mg/ml
so recommended dose for 3.63 kg = 5mg × 3.6 = 18 mg
∵ 1 ml. contains a concentration = 2 mg
∴ for 18 mg concentration dose will be = 18/2 = 9 ml
9 ml of the solution should be given to a cat.
Option B. 9 ml.
