Answer:Maria rate = 1/13 job/hr
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Felipe rate = 1/16 job/hr
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Together rate = 1/x job/h
Step-by-step explanation: rate + rate = Together rate
1/13 + 1/16 = 1/x
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16x + 13x = 13*16
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29x = 13*16
x = 7.17 hrs = 7 hr 10 min 12 seconds (time to do the job together)
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Cheers,
Rubberduck100000.
Answer:
y=2/3x-1
Step-by-step explanation:
The graphs are identical when you enter it into a graph calculator. the y&intercept is at -1 and the slope is 2/3. rise/run.
Answer:
x ≈ 14.30
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
<u>Trigonometry</u>
- sin∅ = opposite over hypotenuse
Step-by-step explanation:
<u>Step 1: Define variables</u>
∅ = 39°
opposite leg = 9
hypotenuse = x
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute: sin39° = 9/x
- Multiply <em>x</em> on both sides: xsin39° = 9
- Isolate <em>x</em>: x = 9/sin39°
- Evaluate: x = 14.3011
- Round: x ≈ 14.30
Answer:
-10
Step-by-step explanation:
Use PEMDAS (Parenthesis, Exponents, Multiplication/Division, Addition/Subtraction)
8 + (-2) · 9
8 - 18
-10
B.13.1 that’s the answer
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