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Goryan [66]
2 years ago
7

How many solutions does 2(b+3)-17=3b-7+b I really need help thanks!

Mathematics
2 answers:
Ymorist [56]2 years ago
8 0

Answer:

One solution

Step-by-step explanation:

Group like terms: 2\left(b+3\right)-17=3b+b-7

\mathrm{Add\:similar\:elements}\:3b+b=4b: 2\left(b+3\right)-17=4b-7

Simplify: 2b-11=4b-7

Add 11 to both sides

Simplify: 2b=4b+4

Subtract 4b from both sides

Simplify: -2b=4

Divide

And finally, you get -2

Leave a brainliest if this helped!

valentinak56 [21]2 years ago
6 0

Answer:

1 solution

Step-by-step explanation:

Since this is a first-order equation, with only the first power of b showing, the maximum number of solutions is 1.

If we actually "do the math," we get:

2b + 6 - 17 = 3b - 7 + b

which simplifies to 2b - 11 = 4b  - 7, or 2b = 4, which yields b = 2.

Again:  1 solution.

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Answer:

7.2

Step-by-step explanation:

a good method towards percentages in multiplying both numbers in this case 48 and 15 and then lowering the product by 2 decimal places

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2 years ago
Given f(x) = 15x + 35, what is the domain of f?
xeze [42]
All real values of x
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PLEASE HELP ME, I HAVE NO IDEA! Find an equation for the line below.
irga5000 [103]

9514 1404 393

Answer:

  y -2 = -2/3(x +4)

Step-by-step explanation:

There are several different forms of the equation for a line. Each is useful in its own way. Here, the line crosses the y-axis at a point between integer values, so using that intercept point could be problematical. That suggests the "point-slope" form of the equation for a line would be a better choice.

That form is ...

  y -k = m(x -h) . . . . . . . line with slope m through point (h, k)

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The two marked points are (-4, 2) and (5, -4). All we need is the slope.

The slope is given by the formula ...

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8 0
2 years ago
Martin throws a ball straight up in the air. the equation h(t) = -16t^2 + 40t + 5 gives the height of the ball, in feet, t secon
Lisa [10]

Answer:

2.62 seconds

Step-by-step explanation:

Let

t ----> the time in seconds

h(t) ----> he height of the ball, in feet

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h(t)=-16t^2+40t+5

we know that

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The formula to solve a quadratic equation of the form

at^{2} +bt+c=0

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t=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}

in this problem we have

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substitute in the formula

t=\frac{-40\pm\sqrt{40^{2}-4(-16)(5)}} {2(-16)}

t=\frac{-40\pm\sqrt{1,920}} {-32}

t=\frac{-40+\sqrt{1,920}} {-32}=-0.12\ sec

t=\frac{-40-\sqrt{1,920}} {-32}=2.62\ sec

therefore

The solution  is t=2.62 seconds

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Answer:

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Step-by-step explanation:

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