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aivan3 [116]
2 years ago
12

Find the rate of change

Mathematics
1 answer:
Bezzdna [24]2 years ago
8 0

Answer: 40 mi/h

Step-by-step explanation:

it goes up 80 and over 2, so the rate of change is 80/2 = 40 mi/h

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a group of friends shared 3 rolls of clay equally. if each student gor 1/2 of a roll of clay, how many students were in the grou
klemol [59]
6 students – 3 rolls of clay divided by each portion given to a student (0.5) equals 6, meaning only six students where able to receive some clay

8 0
3 years ago
I need help on number 2 through 9
Phantasy [73]
3: terms/ 12, 8r, -3, s, -5, 15t coefficients/ 8r, 1s, 15t
5 0
3 years ago
Which step was the first error made? -3\left(2x-3\right)=33−3(2x−3)=33 -6x+6=33−6x+6=33 step 1 -6x=27−6x=27 step 2 \frac{\left(-
Afina-wow [57]

Given:

The equation is

-3(2x-3)=33

The incorrect solution steps are given.

To find:

The first error.

Solution:

We have,

-3(2x-3)=33

Using distributive property, we get

-3(2x)-3(-3)=33

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The given step 1 is -6x+6=33, which is not correct.

Therefore, there is first error in step  1 because the distribution property is not used properly.

Hence, the correct option is D.

6 0
3 years ago
The height and radius of a cone are each multiplied by 3. What effect does this have
Black_prince [1.1K]

The volume of the original cone is multiplied by 27

<h3><u>Solution:</u></h3>

We have been given that the height and radius of a cone are each multiplied by 3.

We need to find what effect it has on the volume of the cone.

<em><u>The volume of the original cone is given as follows:</u></em>

\text {Volume of cone}=\frac{1}{3} \pi r^{2} h

Now, the radius and height are multiplied by 3.

Therefore, the new radius is ‘3r’ and the new height is ‘3h’.

Hence the new volume is  

\text {Volume of new cone}=\frac{1}{3} \pi(3 r)^{2}(3 h)=9 \pi r^{2} h

original volume of cone x 27 = volume of new cone

Therefore, the original volume of cone is multiplied by 27

8 0
3 years ago
Katoni bought 2 1/2 dozen of pencils. There are 12 pencils in a doezen. How many pencils did Kenton I buy?
aleksley [76]
12 * 2 1/2 = 30

Katoni (or Kenton) bought 30 pencils.
6 0
3 years ago
Read 2 more answers
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