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3 years ago

How do I solve for X ax+bx=c

Mathematics

2 answers:

Nezavi [6.7K]3 years ago

8 0

Combine like terms the solve. For example:

5x + 20x = 100
25x = 100
/25 = /25

x =4

pshichka [43]3 years ago

5 0

$Answer:$ $x = \frac{c}{a + b}$

Step-by-step explanation: Notice that the variable we're solving for in this problem appears in two separate terms. In this situation, we must first factor the x out of both terms to get x(a + b) = c.

Think about it as the reverse of the distributive property. In other words, if we take our second step and distribute the x through the parentheses, we end up back at our first step.

The beauty of factoring is that the two x's in this problem have now been combined into one x and we can get x by itself by simply dividing both sides by a + b and we have $x = \frac{c}{a + b}$ .

In the image provided, I have highlighted the x in purple so we know what we're solving for and I have shown you the steps as well.

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larisa [96]

Answer:

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3 years ago

26,) If y varies inversely as x, and y = 5 as x = 6, find y for the x-value of 10.

melisa1 [442]

Answer:

Step-by-step explanation:

the initial statement is

y ∝ 1 /x

to convert to an equation multiply by k the constant

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to find k use the given condition

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y = k/ x ⇒ k = y x = 5 × 6 = 30

y = 30 /x

when

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then

y = 30 /10 = 3

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3 years ago

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pashok25 [27]

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4 years ago

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Fudgin [204]

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3 years ago

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The equation $y=-4.9t^2+3.5t+5$ describes the height (in meters) of a ball thrown upward at $3.5$ meters per second from $5$ met

Georgia [21]

Answer:

Step-by-step explanation:

The position function is

$s(t)=-4.9t^2+3.5t+5$ and if we are looking for the time t it takes for the ball to hit the ground, we are looking for the height of the ball when it is on the ground. Of course the height of anything on the ground is 0, so if we set s(t) = 0 and solve for t, we will find our answer.

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t = -.71428 seconds or

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1.42857 seconds (round how you need to).

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3 years ago