Answer:
She has 20 quarters.
Step-by-step explanation:
Alissa emptied her piggy bank for Disney world. She had $7.70.
If she had 10 pennies and twice as many times as quarters, then we can write the equation as
Q = 2P {Where, Q represents the number of quarters and P for pennies}
⇒ Q = 10 × 2
⇒ Q = 20
So, she has 20 quarters.
Therefore, she has 20 quarters. (Answer)
Use Pythagorean theorem
a^2 + b^2 = c^2
Other words, lengths of the shortest sides squared are equal to the longest squared
a^2 + 9^2 = 15^2
a^2 + 81 = 225
a^2 = 144
a = squareroot of 144
a = 12
Solution: a = 12
1256.64 is the area, because you use this equation- A=πr^2
y = Bracelets
x = Necklaces
Half Hour for the Necklaces; One Hour for the Bracelets; Fewer than Twenty-Hours.
Answer: 0.5x + y < 20
At Least Twice as many Bracelets, as Necklaces.
Answer: y ≥ 2x; x > 0
Answers:
Letter Choices;
(B) 0.5x + y < 20,
(C) y ≥ 2x,
(F) x > 0
Hope that helps!!!!! : )
