Solve the following word problems.

Mathematics

1 answer:

aleksandr82 [10.1K]3 years ago

7 0

Answer:

Step-by-step explanation:

Let a , b , c & d be the no. of chairs in hall A , B , C & D respectively.

Given,

b = 4a

c = a + 15

d = a + 8 + 4a = 5a + 8

Now,

Total no. of chairs (T) = a + b + c + d

= a + 4a + a + 15 + 5a + 8

= 11a + 23

Now,

Average chairs in each hall (Avg) = T/4

= (11a + 23)/4

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which of the following is the value of a when the function f(x)=3|x| is written in the standard form of an absolute value functi

yarga [219]

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Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

lianna [129]

Answer:

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Step-by-step explanation:

The slope of the desired line is the ratio of the difference in y-values to the difference in x-values:

m = Δy/Δx = (2 -5)/(-1 -4) = -3/-5 = 3/5 . . . . . . eliminates choices B and C

The slope-intercept equation will then be ...

y = mx + b . . . . . . . generic slope-intercept form

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5 = 3/5×4 + b

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Then the equation is ...

y = 3/5x + 13/5

_____

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y = 3/5x + b

that the equation of choice A cannot work. That only leaves choice D.

8 0

3 years ago

Solve the system by substitution.<br> -6y = x<br> x +y = -30

Komok [63]

Answer:

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