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3 years ago

In Exercises 51−56, the letters a, b, and c represent nonzero constants. Solve the equation for x

Mathematics

2 answers:

professor190 [17]3 years ago

5 0

Answer:

x= (C-B)A

Step-by-step explanation:

anastassius [24]3 years ago

3 0

Answer:

x = (b-c)/a

Step-by-step explanation:

ax + b = c

Subtract b from each side

ax+b-b = c-b

ax = b-c

Divide by a

ax/a = (b-c)/a

x = (b-c)/a

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Which is not a proportianal relationship A y=x, B x-y=2, C=y=2x and D x +2y=0

noname [10]

Answer:

Choice B

Step-by-step explanation:

Choice B is not a proportional relationship because it is not in the form of Y = KX.

First, you must convert the equation, X - Y = 2 to Y = MX + B by subtracting X to the right side to get -Y = -X +2. Then divide each side by -1 to get a positive Y value. Then you are left with Y = X - 2, which is not in the form of Y=KX.

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3 years ago

At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount., bu

TEA [102]

Answer: Let x represent the cost of one of Tanya's items.

Then the cost of one of Tony's items =x - 2.25. But we have:

3x =4(x - 2.25)

3x =4x - 9 subtract 3x from both sides

0 =x - 9 add 9 to both sides

x=$9 The cost of one of Tanya's items

27 Total cost of Tanya's 3 items

2.25 =$6.75 cost of one of Tony's items.

27 Total cost of Tony's 4 items.

3 x 6.75 =$27. This shows that both Tony and Tanya spent the same amount of money.

Step-by-step explanation:

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3 years ago

Find x and y, when AB and MN are similar <br><br> Please I need your help quickly

zheka24 [161]

Answer:

x is 5 but sorry I can't Find the value of y

6 0

3 years ago

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megan is making a bracelet using a pattern of 3 black diamonds and 2 gold diamonds. If she uses 150 diamonds in total, how many

Grace [21]

Answer:

150

Step-by-step explanation:

it says it in the question

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3 years ago

What is the slope of P=(4.5,-1) Q=(5.3,2).

Ulleksa [173]

$\bf \begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
% (a,b)
P&({{ 4.5}}\quad ,&{{ -1}})\quad 
% (c,d)
Q&({{ 5.3}}\quad ,&{{ 2}})
\end{array}
\\\\\\
% slope = m
slope = {{ m}}= \cfrac{rise}{run} \implies 
\cfrac{{{ y_2}}-{{ y_1}}}{{{ x_2}}-{{ x_1}}}\implies \cfrac{2-(-1)}{5.3-4.5}\implies \cfrac{2+1}{5.3-4.5}
\\\\\\
\cfrac{3}{0.8}\implies \cfrac{\frac{3}{1}}{\frac{08}{10}}\implies \cfrac{\frac{3}{1}}{\frac{4}{5}}\implies \cfrac{3}{1}\cdot \cfrac{5}{4}\implies \cfrac{15}{4}\implies 3\frac{3}{4}$

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4 years ago

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