3 years ago

On a map 1/4 inch = 50 miles. If two cities appear 3 inches apart, how many

Mathematics

1 answer:

Mumz [18]3 years ago

4 0

Answer:

Step-by-step explanation:

3⅛ inches × (50 miles)/(¼ inch) = 625 miles

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12x + 3y = 15 <br> Solve &Justification

____ [38]

Answer:

Step-by-step explanation:

12x+3y= 15

12x= -3y+15

divide both sides by 12 and you get

x= -3/12y+15/12

simplifying:

x=-1/4+5/4

7 0

3 years ago

Solve each equation.

Marrrta [24]

$(1)\\\\|2x-4| =10\\\\\implies 2x-4 = 10~~ \text{or}~~ 2x -4 = -10\\\\\implies x = \dfrac{14}2 = 7 ~~\text{or}~~ x = -\dfrac{6}2=-3\\\\\\(2)\\\\-5|-4x+4|-7 = -67\\\\\implies -5|-4x+4| = -67 +7 = -60\\\\\implies |-4(x-1)| = \dfrac{-60}{-5}=12\\\\\implies 4|x-1| = 12\\\\\implies |x-1| =\dfrac{12}4 = 3\\\\\implies x-1 = -3~~\text{or}~~ x-1=3\\\\\implies x = -2~~ \text{or}~~ x = 4$