Their error is that they divided 12 by 30, instead of 30 by 12 in order to get the price per pair

the correct unit price is $2.50 per pair

2.5 * 12 = 30

8 0

2 years ago

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What is the value of x

Kisachek [45]

Answer:

$x=98$

Step-by-step explanation:

Angles in a triangle add up to 180°

$180-45-53$

$=82$

Angles in a straight line add up to 180°

$180-82$

$=98$

4 0

3 years ago

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Alma is finding the measures of the angles in a triangle that have the ratio 1:3:5. circle her mistake and correct it

PolarNik [594]

Answer:

error in summing terms in x

Step-by-step explanation:

x + 3x + 5x = 180 ( collect like terms on left )

9x = 180 ← ( 9x not 8x )

divide both sides by 9

x = 20

3 0

3 years ago

What is the simplified expression for the expression below?-3 (5x+20) - 1/4(4x-28)​

What is the simplified expression for the expression below?-3 (5x+20) - 1/4(4x-28)