Answer: Divide the sale price by the percentage amount that was paid.
Step-by-step explanation:
If a book is on sale for $6.30 with a 30% discount it means that you paid 70% of the original cost. In order to determine what the original cost was you can divide the sale price by the percentage that was paid:
$6.30 / .7 = $9.00, which is the original price of the book.
You can then double check your work - $9 x 70% = $6.30.
Answer: She's wrong.
Step-by-step explanation:
Numbers of hours used in solving homework last week = 15
Numbers of hours used in solving homework this week = 18
Percentage increase = (18 - 15) / 15 × 100
= 3/15 × 100
= 1/5 × 100
= 20%
Since Maxie said that she spent 120% more time doing homework this week, she's wrong. She only spent 20% more.
Answer:
The inequality is 12.5v + 70 ≥ 215
and the amount of visits they can make is 12 visits
Step-by-step explanation:
if you take away (subtract) 70 from both sides, you'll get
12.5v ≥ 145
and when you divide both sides by 12.5, you'll get 11.6, or 12
Answer:
=========================
<h2>Given </h2>
Triangle with:
- Base of n² -3,
- Midsegment of 39.
<h2>To find</h2>
<h2>Solution</h2>
As per definition of midsegment, it is connecting the midpoints of two sides and its length is half the length of the opposite side of the triangle.
So we have:
Solve it for n:
- n² - 3 = 78
- n² = 81
- n = √81
- n = 9
Correct choice is D.
