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3 years ago

ANSWER THIS PLS!!!!

1 answer:

5 0

Answer and Step-by-step explanation: With the constant velocity motion formula, we can determine constant velocity of the object in motion whose data we collected:

x = x₀ + vt

Velocity can be calculated as:

$v=\frac{x-x_{0}}{t}$

$v=\frac{70-40}{10}$

v = 3 m/s

The beginning of the data collect, object is 40m away, then x₀ = 40.

So, equation modeling the object's path is x = 40 + 3t.

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There are 12 baseball trading cards in 4 packages. each package has the same number of cards. Write a rule in words for the numb

Tamiku [17]

Answer:

Rule in words:

The number of packages Justin needs to buy to get x cards is x divided by 3.

Rule as an algebraic expresssion:

$y=x/3$

Explanation:

This is a direct variation problem.

Since each package has the same number of cards, the number of cards is proportional to the number of packages.

12 baseball cards in 4 packages means that there are 12/4 = 3 cards per package, so:

The number of cards is 3 times the number of packages.

The number of packages is the number of cards divided by the number of 3.

So, the rule in words for the number of packages Justin needs to buy x cards is one third of x. This table may help you to visualize it:

Number of packages: 1 2 3 4 5

Number of cards: 3 6 9 12 15

To find the algebraic expression that describes the same rule, you can set the following proportion:

$\frac{12}{4} =\frac{x}{y}$

Where y is the number of packages and x is the number of cards.

And from that you solve for y:

$\frac{12}{4} =\frac{x}{y}\\ \\ 12y=4x\\ \\ y=4x/12\\ \\ y=x/3$

8 0

4 years ago

what is the surface area of a triangular prism if side a is 12 cm, side b is 3 cm, side c is 10 cm and the height is 8 cm?

Lelechka [254]

What's the base.

This is the formula

SA= 1/2(bh)h

6 0

4 years ago

Graphing system of equations: y=5x+2 and y=-x+8

Harman [31]

Red - y=5x+2
blue - y=-x+8

4 0

3 years ago

Please help with graphing inequalities, will give medal and will give 50 points on separate question to whoever can get them all

Zolol [24]

1. B
2. C
3. B
4. D
I hope this helps

6 0

4 years ago

A prism is filled with 28 cubes with 1/2 unit lengths. What is the volume of the prism in cubic units?

stira [4]

Answer:

3.5 cubic units

Step-by-step explanation:

First, find the volume of one cube

Use the cube volume formula, V = s³, where s is the side length

V = (1/2)³

V = 1/8 cubic units

Now, find the volume of the prism by multiplying this by 28, since there are 28 cubes

28(1/8)

= 3.5

So, the volume of the prism is 3.5 cubic units

6 0

3 years ago