T=5w
T= total cost
W= weeks
It can't be W= because the question is asking for total cost in dollars, so two options are cancelled out.
Can't be t=5+w because it's 5 per week and if, let's say calculating dollars for 2 weeks, the answer would be t=5+2=7 and that wouldn't be right
Answer:
(3) and
(4)
Step-by-step explanation:
Question 3
Required
Solve for x and y
We have:
--- angle on a straight line
Collect like terms
Solve for x
Also:
---- opposite angles
So, we have:
Divide by 2
Question 4:
Required
Solve for x
We have:
---- angle at right-angled
Collect like terms
Divide by 16
Answer:
m∠R = 60°
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<u>
</u>
Step-by-step explanation:
<u>Step 1: Identify</u>
Angle θ = ∠R
Opposite Leg of ∠R = 10√3
Hypotenuse = 20
<u>Step 2: Solve</u>
- Substitute in variables [sine]:
- [Equality Property] Trig inverse:
- Evaluate trig:
Is ############### hope this help u out xxx