3 years ago

I NEED HELP BUT UTS NOT LIKE HELPPPPPP PLS SO YEAH

Mathematics

2 answers:

fenix001 [56]3 years ago

8 0

Answer: the answer is B

Step-by-step explanation:

kow [346]3 years ago

8 0

Answer:

B. 16.2

Step-by-step explanation:

The angle is equal to a right angle so

90 - 73.8 = 16.2

x = 16.2

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$\left\{\begin{array}{ccc}2x+3y=134\\x+5y=179&|\text{subtract 5y from both sides}\end{array}\right\\\\\left\{\begin{array}{ccc}2x+3y=134\\x=179-5y&|\text{substitute to the first equation}\end{array}\right\\\\2(179-5y)+3y=134\qquad\text{use distributive property}\\\\(2)(179)+(2)(-5y)+3y=134\\\\358-10y+3y=134\qquad\text{subtract 358 from both sides}\\\\-7y=-224\qquad\text{divide both sides by (-7)}\\\\\boxed{y=32}\\\\\text{Put the value of y to the second equation}\\\\x=179-5(32)\\\\x=179-160\\\\\boxed{x=19}$

<h3>Answer: video tape cost $19 and DVD cost $32.</h3>

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