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3 years ago

Simplify the expression (2d + 3) + (3d − 12).

Mathematics

1 answer:

alexandr402 [8]3 years ago

6 0

Answer:

5d - 9

Step-by-step explanation:

Step 1: Write equation

(2d + 3) + (3d - 12)

Step 2: Combine like terms

5d - 9

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Bogdan [553]

Answer: both equations have the same solution because the second equation can be obtained by adding 4 to both sides of the first equation

eq 1 + 4:

= 3x+2 + 4 = -6 + 4

= 3x + 6 = -2 ⇒ eq 2

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3 years ago

What is the equation of this line?

hram777 [196]

Y=1/2x

If that helps please make sure to mark as brainliest!
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4 years ago

Your lunch in the hospital cafeteria cost $6.50. Based on working 50 weeks per year, how much will you spend on lunch per year?

s344n2d4d5 [400]

The total amount spent on lunch per year would be 325 dollars.

<h3>What is the fundamental principle of multiplication?</h3>

Multiplication is the mathematical operation that is used to determine the product of two or more numbers. If an event can occur in m different ways and if following it, a second event can occur in n different ways, then the two events in succession can occur in m × n different ways.

We have been given that Your lunch in the hospital cafeteria cost $6.50. Based on working 50 weeks per year, then;

The lunch in the hospital cafeteria cost = $6.50.

The total amount spend on lunch per year;

6.50 x 50

325

Hence, the total amount spent on lunch per year would be 325 dollars.

Learn more about multiplications;

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2 years ago

In order to graph a line your equation must be set equal to y. If I gave you the following equation would you be able to graph i

aliina [53]

Answer:

Step-by-step explanation:

Graphing the equation in the form it is given is eventually hard so we always rewrite the equation in the form of y. Lets rewrite the equation in the form of y.

$-6x+12y=9\\12y=6x+9\\\\y=\frac{6x+9}{12} \\\\y=\frac{6x}{12}+\frac{9}{12} \\\\y=\frac{1}{2}x+\frac{3}{4}$

now if we compare it to our slope-intercept form which is

$y=mx+b$

m is the slope which is 1/2 which tells us that if the slope is positive the graph is a positive slope means that two variables are positively related that is, when x increases so does y, and when x decreases y also decreases. Graphically, a positive slope means that as a line on the line graph moves from left to right, the line rises, and b is the y-intercept which is 3/4.

Intercept means where the line intersects the specific axis. In this case b is y-intercept which is 3/4 which means the line intersects the y-axis at 3/4

so we have our first point (0 , 3/4)

now in order to graph the line we need one more point that is the x-intercept which means where the line would intersect the x-axis the coordinate would be (x , 0) so lets insert this coordinate into our equation that we rewrote above.

$y=\frac{1}{2}x+\frac{3}{4} \\\\0=\frac{1}{2}x+ \frac{3}{4}\\\\-\frac{3}{4}=\frac{1}{2} x\\\\-6=4x\\\\\frac{-6}{4}=x \\\\x=\frac{-3}{2}$

so our x-intercept is (-3/2 , 0)

Below I have attached the graph file you check it out for better understanding

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3 years ago

If AC =4.5 what is the measure of AB

FinnZ [79.3K]

Answer:

Step-by-step explanation:

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4 years ago

Read 2 more answers