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Komok [63]
2 years ago
12

In a mixture of​ concrete, there are five lb of cement mix for each pound of gravel. if the mixture contains a total of 198 lb o

f these two​ ingredients, how many pounds of gravel are​ there?
Mathematics
1 answer:
arsen [322]2 years ago
7 0
There are 39.6 lbs. of gravel.
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Find the quotient and reduce to lowest terms: ((x²-4)/(3x)) ÷ ((x-2)/(2x)).
DENIUS [597]

Answer:   2/3 * (× + 2 )

Step-by-step explanation:

((x²-4)/(3x)) ÷ ((x-2)/(2x)).          ⇒   [ ( ײ - 4 ) * 2x ] ÷ [ ( × - 2 ) *3x ]

Simplifying by x   [ 2 * ( ײ - 4 ) ] ÷ [ ( × - 2 ) *3 ] ⇒ (2/3)*{ [ ( x-2 )*(×+2)]÷ (×-2) }

Simplifying by ( ×+2)     2/3 * (× + 2 )

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3 years ago
Corresponding angles of AABC and ADEF are congruent. Does this prove that the triangles are congruent? Justify.
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define a variable and write an inequality to model each situation. The school auditorium can seat at most 1200 people.
Savatey [412]
The picture is the answer

8 0
3 years ago
Complete the equation of the line through (-8-2) and (-4-6)
Kisachek [45]

Answer:

Step-by-step explanation:

since you are given two points use the point- slope formula and the slope formula

y-y1 = m( x -x1)   and  m = y2 -y1 / x2 - x1        

find the slope m, 1st

p1 = (x1,y1)  given (-8,-2)

p2 = (x2,y2) given (-4,-6)

m = -6-(-2) / -4-(-8)

m = -6+2 / -4+8

m = -4 / 4

m = -1  :)

now use the slope you just found and the point-slope with either given point.. pick one.. which ever seems easier... they seem about the same to me

y - (-8) = -1(x-(-2))

y+8 = -1(x+2)

y+8 = -x-2

y = -x-2-8

y= -x-10

and your done :)

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3 years ago
What is the value of m? (m is a whole number)
yuradex [85]

m is equal to 3. Need I say more?

6 0
3 years ago
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