Answer:
2,258
Step-by-step explanation:
4 words = $0.31
= 
cross multiple and solve for x
0.31x = (175)(4)
x = about 2,258
Answer: The required set-builder notation is :

Step-by-step explanation: We are given to write the following set B in set-builder form :
the set B consists of all natural numbers less than or equal to 100.
In set-builder form, a variable x is used to represent each and every element of the set.
Therefore, the set B in set-builder form can be written as :

Thus, the required set-builder notation is :

Answer:
9 2/7
Step-by-step explanation:
4 1/3=13/3
2 1/7=15/7
13/3*15/7= 195/21
=9 6/21
=9 2/7
Answer: 16,000 litres
Step-by-step explanation:
1/16 of the pool is 2000l
8/16 full is 1/2 of the pool full
1/16 = 2000
8/16 = x
Cross multiply
1/16x = 2000 × 8/16
1/16x = 1000
Multiply both sides by 16
x = 16000
To make the pool half full, 16,000 litres is required.
Look 4x^2-16 is 0 because 4x^2 is 16 so 16 -16 is 0