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maw [93]
4 years ago
5

If 3t - 7 =5t, then 6t =

Mathematics
2 answers:
Orlov [11]4 years ago
5 0

Step-by-step explanation:

3t - 7 = 5t \\  \\  \therefore \: 3t - 5t = 7 \\  \\ \therefore \:  - 2t = 7 \\  \\  \therefore \: t =  \frac{7}{ - 2}  \\  \\  \therefore \: t = -  3.5 \\  \\  \implies \: 6t = 6 \times ( - 3.5) =  - 21

professor190 [17]4 years ago
4 0

\text{First, we need to find what t equals}\\\\\text{Solve for t:}\\\\3t - 7 =5t\\\\\text{Subtract 5t from both sides}\\\\-2t-7=0\\\\\text{Add 7 to both sides}\\\\-2t=7\\\\\text{Divide both sides by -2}\\\\t=-3.5\\\\\text{Now, plug -3.5 to t:}\\\\6(-3.5) = -21\\\\\boxed{-21}

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A chef plans to mix 100% vinegar with Italian dressing. The Italian dressing contains 12% vinegar. The chef wants to make 320 mi
EastWind [94]

Answer:

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Step-by-step explanation:

Let v = the milliliters ( mL ) of 100% vinegar,

Then it should be that 320 - v = mL of dressing.

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Let's solve for the mL of 100% vinegar, subtracting from 320 to receive the mL of dressing,

v + .12( 320 - v ) = .23( 320 ) - Distribute " .12 "

v + 38.4 - 0.12v = .23( 320 ) - Multiply " 0.32 " by " 320 "

v + 38.4 - 0.12v = 73.6 - Combine like terms and add / subtract

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Step-by-step explanation:

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