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3 years ago

What is the answer for -3x+12x

Mathematics

2 answers:

Eva8 [605]3 years ago

6 0

Answer:

Step-by-step explanation:

=−3x+12x

=(−3x+12x)

=9x

Serjik [45]3 years ago

3 0

9x should be the answer

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Hamburgers cost $2 and hotdogs cost $2. The total cost of buying b hamburgers and d hotdoge can be expressed by C=3b+2d. how can

sveticcg [70]

C= 3b + 2d
Subtract 3b first.

C-3b = 2d
Divide by 2.

C-3b/2 = d

OR

C-3b
-------- = d Your final answer!
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2 years ago

Johns dog slept for 3 hours if the dog snored every 1/3 of an hour how many times did he snore

Licemer1 [7]

The dog snored nine times. 1/3 of an hour is every 30 minute interval. 30 min + 30 min = 1 hour. Multiply this x3, and the answer is nine. A simpler way of thinking about this is 3 x 3 or 3 squared.

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3 years ago

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Write an equation in slope-Intercept form for the line with slope 2/5 and y- ntercept - 3 .

Trava [24]

Answer:

y = $\frac{2}{5}$ x - 3

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = $\frac{2}{5}$ and c = - 3 , then

y = $\frac{2}{5}$ x - 3 ← equation of line

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2 years ago

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if a cylinder with height 9 inches and radius r is filled with water, it can fill a certain pitcher. how many of these pitchers

dalvyx [7]

Answer:

4 pitchers

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

$V=\pi r^{2}h$

step 1

Find the volume of the cylinder with height 9 inches and radius r

substitute the given values

$V_1=\pi r^{2}(9)$

$V_1=9\pi r^{2}\ in^3$

step 2

Find the volume of the cylinder with height 9 inches and radius 2r

substitute the given values

$V_2=\pi (2r)^{2}(9)$

$V_2=36\pi r^{2}\ in^3$

step 3

we know that

The volume of the cylinder 1 can fill a certain pitcher,

The volume of the pitcher is the same that the volume of cylinder 1

therefore

the number of pitchers that can be filled by the second cylinder is equal to divide the volume of the second cylinder by the volume of the first cylinder

$\frac{36\pi r^{2}}{9\pi r^{2}}=4\ pitchers$

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3 years ago

Which of the following is not a possible value of x? A. -0.2 B. 0 C. 1 D. 3

Vinvika [58]

-0.2 is not a possible value of x because lengths cannot be negative.

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3 years ago

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