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3 years ago

9 – 2x = 19 What is x

Mathematics

2 answers:

iren2701 [21]3 years ago

6 0

9-2x=19

or,-2x=19-9

or,-2x=10

or,x=10/-2

therefore,

x=-5

castortr0y [4]3 years ago

3 0

Answer:

x=-5

Step-by-step explanation:

subtract 9 on both sides

9-2x=19

-9 -9

-2x=10

x=-5

;)

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Answer:

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Step-by-step explanation:

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2 years ago

Work out 25% of £18

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2 years ago

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Andrei [34K]

Answer:

So for a quadratic function, the axis of symmetry is the line that divides the curved line in the middle, which is the h value, it can be found by using the formula -b/2a, so for here it would be 4/2(1) = 2, so x =2

Hope that answers your question

Step-by-step explanation:

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1 year ago

The length of the rectangle is six times its width if the perimeter is 70cm find its area

Vesna [10]

Answer:

Step-by-step explanation:

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3 years ago

The cost for the raw materials of marble countertops, can be represented by the function , where is the area of the countertops.

Lady_Fox [76]

Answer:

$m(c(a)) = 4.8875a$

Step-by-step explanation:

The missing parameters are:

$c(a) = 4.25a$ --- Cost of marble countertops

$m(c) = 1.15c$ --- Cost of retail markup

Required

The cost of marked up price

This implies that we calculate m(c(a))

We have:

$c(a) = 4.25a$

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$m(c) = 1.15c$ can be written as:

$m(c(a)) = 1.15*c(a)$

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$m(c(a)) = 4.8875a$

Hence, the cost of marked up price is: $m(c(a)) = 4.8875a$

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2 years ago