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4 years ago

Which order from least to greatest of 2.8, 2.8x10², 2.8x10⁻3, 2.8x10⁴, 2.8x10⁻5

Mathematics

2 answers:

Dominik [7]4 years ago

7 0

2.8x10^-5 ; 2.8x10^-3 ; 2.8 ; 2.8x10^2 ; 2.8x10^4

Anna007 [38]4 years ago

3 0

Answer:

2.8x10⁻5, 2.8x10⁻3, 2.8, 2.8x10², 2.8x10⁴

Step-by-step explanation:

The greater the exponent, the greater the number. In the negative case however, as the negative numbers become greater, they become less and less.

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I am donating packages for Christmas drive. After the first week, I spent 126 to donate three children packages and 8 adult pack

anastassius [24]

Answer:

Step-by-step explanation:

Let the price for children and adults package be represented with x and y respectively.

For the first week the sum of the package will be as follows:

3x+8y = 126

For the two weeks after:

6x+4y= 108

So, we will be having two equations

3x+8y = 126..... (1)

6x+4y= 108.......(2)

These are simultaneous equations

From equation 1

3x+8y = 126

3x = 126-8y

X = 126-8y/3 ............. (3)

Put equation 3 into 2

6 ( 126-8y)/3 +4y = 108

756-48y/3 +4y = 108

756-48y+12y/3 = 108

Cross multiplying

756-48y+12y= 108×3

756-48y+ 12y = 324

Collecting like terms

756-324 = 48y-12y

432= 36y

Divide both sides by 36

432/36 = 36y/36

y= 12

Substituting y into equation 1

3x+8= 126

3x+96=126

3x= 126-96

3x= 30

Divide both sides by 3

3x/3 = 30/3

x = 10

Hence for each of the packages for children and adults. It will be 10 and 12 respectively.

8 0

3 years ago

How do you graph -4x + y = -3

Natasha2012 [34]

<em>I hope this helps you!</em>

5 0

3 years ago

a container of coffee is 1/6 full.The container contains 2/3 of a pound of coffee.write division expression that represents the

zimovet [89]

Answer:

capacity of the container is 4 pound

Step-by-step explanation:

We have given that a container of the coffee is $\frac{1}{6}$ full

And it contains $\frac{2}{3}$ of a pound so $\frac{2}{3}$ pound

It means $\frac{1}{6}$ f of container contain $\frac{2}{3}$ pound coffee

So capacity of the container is $\frac{\frac{2}{3}}{\frac{1}{6}}=4pound$

So capacity of the container is 4 pound

8 0

3 years ago

PLEASE HELP ME IM SO CONFUSED The volume of a cube is x³ cubic units. The surface area of the cube is x³ square units. What is t

Tom [10]

Answer: The value of x is 6.

Step-by-step explanation:

TO find the volume of a cube you cube any side length. so if the side length is 6.

6^3 = 216

To find the surface area of a cube you will square one of the side lengths and multiply it by 6.

so the side length is 6 and 6 squared is 36

36*6 = 216

3 0

3 years ago

Which graph shows the solution to the inequality -3x-720?

inn [45]

Answer:

x>-9

Step-by-step explanation:

The given inequality is :

-3x - 7 < 20

We need to find the solution of the inequality using graph.

-3x - 7 < 20

Add 7 to both sides

-3x-7+7 < 20+7

-3x <27

x>-9

Hence, the attatched graph shows the solution of the given inequality.

7 0

3 years ago