Answer:
First one:
a discount of 15% and then 10% and then 15% off that amount
Step-by-step explanation:
15% discount means 100-15 = 85% is to be paid
10% discount means 100-10 = 90% is to be paid
25% discount means 100-25 = 75% is to be paid
Let X be the cost before discount
1st offer:
85% of 90% of 85% of X
(85/100) × (90/100) × (85/100) × X
= 0.65025X
2nd offer:
75% of X
(75/100) × X
= 0.75X
Since 0.65025 < 0.75,
Offer 1 is better
Answer:
i don't know, start throwing up or something. can't talk while you're sick
Answer:
100 times stronger
Step-by-step explanation:
The Richter scale is a measurement system for the strength of Earthquakes. The most powerful Earthquakes are at 5-10, while the least powerful ones stay from 1-4.
This is how the Richter scale works:
An earthquake with a magnitude of 2 is 10 times more powerful than an earthquake with a magnitude of 1. Each number is 10 times more powerful than the last.
So, simple math tells us that Magnitude six is 10 times more powerful than magnitude five, and magnitude seven is 100 times more powerful than magnitude 5..
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)