MATHEMATICS COLLEGE

Please help and i will brainliestttt

Answers

Answer 1

Answer:

Answer:

7/3 cm per hour

Step-by-step explanation:

Answer 2

Answer:

Answer: 7/3 or in decimal form 2.3 the three is repeating or in mixed number 2 1/3

Step-by-step explanation:

7 divided by 3= 3/3 or in decimal form 2.3 the three is repeating or in mixed number 2 1/3

7 is for how much snow fell and the 3 is from how much time

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Jayson scored 13, 21, and 32 points in his first three games. If we wanted to average 20 points per game, how many points would he have to score in his 4th game?

Answers

To average 20 points in 4 games he needs a total of 20 x 4 = 80 points.

So far he has 13 + 21 + 32 = 66 points.

He will need 80 - 66 = 14 points in the 4th game.

pencils cost 2 dollars each. Rulers cost 3 dollars each. Edith buys p pencils and r rulers. The total cost is T dollars. What is the formula for T in terms of p and r

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(2 x p) + (3x r ) = T that would be the equation

If ln y = (ln x)2 + 2, then find dy / dx in terms of x and y.

Answers

Answer: The required value of $(dy)/(dx)$ is $(y)/(1-y).$

Step-by-step explanation: We are given to find the value of $(dy)/(dx)$ from the following equation :

$\ln y=(\ln x)^2+2~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Differentiating both sides of equation (i) with respect to x, we have

$(d)/(dx)\ln y=(d)/(dx)((\ln x)^2+2)\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=(d)/(dx)(\ln x)^2+(d)/(dx)2\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=2\ln x*(d)/(dx)\ln x+0\n\n\n\Rightarrow (1)/(y)(dy)/(dx)=2(\ln x)/(x)\n\n\n\Rightarrow (dy)/(dx)=(2y\ln x)/(x).$

Thus, the required value of $(dy)/(dx)$ in terms of x and y is $(2y\ln x)/(x).$ .

Chad baked 12 cookies with 2 scoops of flour. How many scoops of flour doesChad need in order to bake 42 cookies? Solve using unit rates.

Answers

Answer:

Step-by-step explanation:

Set up a proportion

12 cookies / 2 cups = 42 cookies / x Notice that cookies are on the top and cups are on the bottom of each proportion.

12/2 = 42/x Cross multiply

12x = 84 Divide by 12

x = 84/12

x = 7

He will need 7 cups to make 42 cookies.

Final answer:

Chad needs approximately 7 scoops of flour to bake 42 cookies using the given rate of 2 scoops of flour per 12 cookies.

Explanation:

This problem can be solved using unit rates method. First, we find how much flour is needed for one cookie by dividing the number of scoops of flour used by the number of cookies created. In this case, the unit rate is 2 scoops of flour per 12 cookies, which simplify to about 0.167 scoops/cookie.

To find out how many scoops of flour Chad needs to bake 42 cookies, we will multiply our unit rate by the number of cookies. Here it is: 0.167 scoops/cookie times 42 cookies equals to approximately 7 scoops of flour.

Learn more about unit rates here:

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Please help ASAP! Thank you!

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Omg I need help ASAP TOO Twinzies

josh packed one layer of a rectangular prism with 15 unit cubes. The prism holds 4 layers of unit cubes. What is the volume of the rectangular prism?

Answers

The required volume of the rectangular prism is 60 cubic units,

Given that,
josh packed one layer of a rectangular prism with 15 unit cubes. The prism holds 4 layers of unit cubes.
To determine the volume of the rectangular prism.

What is volume?

Volume is defined as the ratio of the mass of an object to its density.

Here,
Dimension of the rectangular prism,
Each layer consists of 15 unit cubes,
Length of the rectangular prism = 15 units,
and consist of 4 layers,
Width = 4 * 1 = 4 units
height = 1

The volume of the rectangular prism = length * width * height
= 15 * 4 * 1
= 60 cubic units

Thus, the required volume of the rectangular prism is 60 cubic units,

Learn more about Volume here:
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Answer:60

Step-by-step explanation:

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