Answer:
Taji has a total of 56 quarters.
Step-by-step explanation:
Let <em>x</em> be the number of quarters that Taji has.
Amount in terms of quarter 
Let <em>y</em> be the number of dimes that Taji has.
Amount in terms of quarter 
As per question statement:
Total amount is $18.20 as given in the question statement.
Solving equations (1) and (2):
Multiplying equation (1) by 10 and subtracting from equation (2):
<em>x </em>is the number of quarters that Taji has.
So, Taji has a total of 56 quarters.
Answer: 2 tokens.
Step-by-step explanation:
From the question, we are informed that a bag contains green tokens and black tokens and that there are 8 green tokens in the bag.
We are further told that the ratio of green tokens to black tokens is 4 for every 1.
Since the green tokens is 4× the black tokens, therefore the number of black tokens in the bag will be:
= 8/4
= 2 tokens
Answer:
7/25 or .28
Step-by-step explanation:
sin=opp/hyp
7/25
7,912.8 inch³ of aluminum is needed to make 70 metal balls.
Step-by-step explanation:
Step 1:
The area of a sphere is calculated by multiplying 
with π and the cube of the radius (r³).
In the given problem, the diameter is 6 inches. So the radius of the spheres is 3 inches.
The volume of a sphere,
So if r = 3 inches and π = 3.14,
cubic inches.
So for a single aluminum ball, 113.04 inch³ of aluminum is needed.
Step 2:
If 113.04 inch³ of aluminum is used for 1 ball, then we multiply 70 with this value to determine the aluminum needed for 70 such balls.
The aluminum needed for 70 metal balls 
inch³.
So 7,912.8 inch³ of aluminum is needed to make 70 metal balls.
Answer:
11.72
Step-by-step explanation:
6.76 + 4.96 = 11.72
