First, we need to find the LCD (Least Common Denominator) so we can subtract them much easier.
An easy way to find the LCD is to just multiply the denominators together: So 2 • 5 = 10
We have to do the same to the numerators too though.
1/2 (5) = 5/10
2/5 (2) = 4/10
Now, the remade expression is:
5/10 - 4/10 which will equal 1/10.
Hope it helped! If it did, please mark as Brainliest! :)
Answer:
Step-by-step explanation:
Hope it helps you in your learning process.
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Equality Properties
- Multiplication Property of Equality
- Division Property of Equality
- Addition Property of Equality
- Subtraction Property of Equality<u>
</u>
<u>Trigonometry</u>
[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] sinθ = opposite over hypotenuse
Step-by-step explanation:
<u>Step 1: Identify Variables</u>
Angle θ = 23°
Opposite Leg = <em>x</em>
Hypotenuse = 21
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [sine]:

- [Multiplication Property of Equality] Isolate <em>x</em>:

- Rewrite:

- Evaluate:

- Round:

Hey there! I'm happy to help!
We see that Rosy uses 1/4 of the bottle to wax 2/3 of the car.
We need to 1/3 more to wax the entire car.
1/3 is half of 2/3.
We used 1/4 bottle for 2/3 of the car.
Therefore, we need half of 1/4 bottle for 1/3 more of the car.
1/4×1/2=1/8
We add this to the original 1/4 to see the total amount we used to wax the entire car.
1/4+1/8=3/8
Therefore, Rosy will use 3/8 of the bottle of car wax to wax her entire car.