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svetoff [14.1K]
2 years ago
15

-3y-2=7 what is the value of y

Mathematics
2 answers:
tiny-mole [99]2 years ago
6 0

Answer:

y = -3

Step-by-step explanation:

Add 2 to each side to isolate the -3y. Doing this leaves you with -3y=9. You then divide each side leaving you with y = -3

babymother [125]2 years ago
4 0

Answer:

The equation has one solution at which y = -3.

Step-by-step explanation:

To find the value of y, we need to isolate it from the rest of the equation.

  1. Add 2 to both sides of the equation.
  2. Divide by -3 on both sides of the equation.
  3. Simplify the equation if necessary.

\displaystyle{-3y-2=7}\\\\-3y = 9\\\\\bold{y = -3}

We can check to make sure that y = -3 by substitution.

\displaystyle{-3(-3)-2 = 7}\\\\9-2=7\\\\7= 7 \ \checkmark

Because we got a true statement, we can determine that y = -3.

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A=zm+z solve for m please help!!!!!
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Answer:

(a-z)/z = m

Step-by-step explanation:

a = zm+z

Subtract z from each side

a-z = mz+z-z

a-z = mz

Divide by z

(a-z) /z = mz/z

(a-z)/z = m

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3 years ago
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Answer:

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Find the sine of ∠U.<br><br> A)48/55<br> B)48/73<br> C)55/48<br> D)55/73
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Answer:

D) 55/73

Step-by-step explanation:

The question is on trigonometry. Sine of an angle is obtained using the SOH of SOHCAHTOA formula of trigonometry. SOH is an acronym for sine, opposite and hypotenuse. Sine of an angle is obtained from the ratio of opposite and hypotenuse of a given triangle. Thus, SOH

is denoted as stated below.

sine \:  \beta  =  \frac{opposite}{hypotenuse}

Hence, given the above triangle,

sine \: of \: angle \: u =  \frac{ |bc| }{ |ab| }  =  \frac{55}{73}

Therefore, the sine of angle u = 55/73 (D)

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What are the equivalent ratios shown in the table?
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These are all equivalent to the ratio of 1:2

Step-by-step explanation:

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