Answer: there are 8 quarters in the jar
Step-by-step explanation:
Let x represent the number of nickels that is inside the jar.
The total number of coins inside the jar is 20.
Probability is expressed as
Number of possible or favorable outcomes/total number of outcomes.
The probability of selecting a nickel is 0.6. This is expressed as
0.6 = x/20
Cross multiplying, it becomes
x = 20 × 0.6
x = 12
Since there are 12 nickels inside the jar, then the number of quarters would be
20 - 12 = 8
Hello!
You use the Pythagorean theorem to solve this
Put in the values it tells you to
Square the numbers
Subtract 19.36 from both sides
Take the square root of both sides
a = 3.3
The answer is 3.3
Hope this helps!
Answer:
Step-by-step explanation:
if Jim eats r apples and Maria eats 3times as Jim then we can represent the number of times Maria eats as 3r
Together, the both eat 96 apples that is:
r + 3r = 96 apples - this is the equation for this situation.
Solving further
r + 3r = 96apples
4r = 96 apples (divide through the equation by 4)
4/4 r = 96/4 apples
Then
r = 24 apples
Which means that Jim eats 24 apples while Maria eats 3 * 24 apples = 72 apples.
