I learned this trick months ago.
Step-by-step explanation:
ratios are kinda like fractions
5/15 could be used as 2/6 if you criss cross it 5x6=30 and 15x2=30
Here are a list of fractions (just turn them into ratios) that would work
1/3 1:3
2/6 2:6
3/9 3:9
4/12 4:12
5/15 5:15
6/18 6:18
7/21 7:21
8/24 8:24
9/27 9:27
10/30 10:30
Answer:
D. 20
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
<u>Geometry</u>
- All angles in a triangle add up to 180°
Step-by-step explanation:
<u>Step 1: Set Up Equation</u>
3x + 3x + 10 + 2x + 10 = 180
<u>Step 2: Solve for </u><em><u>x</u></em>
- Combine like terms: 8x + 20 = 180
- Isolate <em>x</em> term: 8x = 160
- Isolate <em>x</em>: x = 20
Answer:
Price of the printer is = $193.20
Step-by-step explanation:
Office supply store purchased an all in one printer wit a regular price = $240
After 15% off price of the printer = $240 - 15% of $240
=
= 240 - 36
= $204
The store is offering $20 mail in rebate so the price of printer after rebate
= $204 - $20
= $184
Now price of the printer including sales tax = 184 + 5% of 184
= 184 +
= 184 + 9.20
= $193.20
Divide 24 by 8: 3. Then multiply that number by 5: 15
5/8 of 24 =15