Answer:
7 1/2
Step-by-step explanation:
A water tank contains 12 1/2 liters
= 25/2
Two fifth of it was consumedd
= 25/2 ×2/5
= 50/10
= 5
12.5-5
= 7.5
= 7 1/2
Answer:
x
Step-by-step explanation:
Using the trigonometric identities
1 + tan²x = sec²x and 1 - sin²x = cos²x
secx = 
Given

= 
= 
= cos²x × cos²x
=
x
Answer:
About 80 necklaces have more than 28 beads.
Step-by-step explanation:
Answer:
Amount of gas = 3.2 gallons
Required coordinate pair is (3.2, 12)
Step-by-step explanation:
Let x be the number of gallon of gas.
Given:
Berto has ⇒ y = $12
Gas cost per gallon ⇒ $3.75
Solution:
Using below formula.
Number of gallon of gas = 
Now, we substitute total cost and gas cost per gallon.


Therefore, Berto can buy 3.2 gallon of gas and required coordinate pair is (3.2, 12).