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3 years ago

Explain how a number line can be used to find the difference for 34-28

2 answers:

8 0

Take a piece of paper and write a line with dashes having a number below it until 50. Then Go to 34 on your number line and then go backwards by 28. (34 - 28) the answer should be 6. The number line helps you count steps forward/backwards. :)

<3 Aleah

Liula [17]3 years ago

3 0

A number line can be used to find the difference between 34-28 because you can count each space in-between each number (6).

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Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y = x+1 1 X+ 3 2.

Troyanec [42]

Answer:

D. (4, 5)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

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Step-by-step explanation:

Step 1: Define systems

y = x + 1

y = 1/2x + 3

Step 2: Solve for x

Substitute in y: x + 1 = 1/2x + 3
Subtract 1/2x on both sides: 1/2x + 1 = 3
Subtract 1 on both sides: 1/2x = 2
Divide both sides by 1/2: x = 4

Step 3: Solve for y

Define original equation: y = x + 1
Substitute in x: y = 4 + 1
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Step 4: Graph

We can confirm our answer.

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3 years ago

Write the product using exponents. (-1\2). (1/2).(1/2).

Lynna [10]

Answer:

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Step-by-step explanation:

4 0

3 years ago

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Solve 2x^2 +16x+50=0

musickatia [10]

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3 years ago

What is the value of x?

Aliun [14]

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7 0

3 years ago

Please help i have such a low GPA and i have to get it up so i can get into high school 100 points

enyata [817]

Answer:

Well, The volume of the sink shaped like a half sphere is [2000/3] π in^2.

a) The volume of a cylinder is the area of the base * height

For this part the cup has a diameter, d, of 4 in and height, h, of 8 in.

The area of the base is π (d/2)^2 = π (2 in)^2 = 4π in^2.

The volume of the cuo is 4π in^2 * 8 in = 32π in^3.

Then the number of cups to take the volume of [2000 / 3] π in^2 is:

[2000 / 3]π / [32π] = 20.83

Answer: 21 cups.

b) For this part the diameter of the cup is 8 in and the height is 8 in

Then the volume is π (4 in)^2 * 8 in = 128 ⇅ in^3

And the number of cups needed is [2000π/3] / (128π) = 5.2

Answer: 5 cups. Good Luck!

From ~Itsbrazts~.

8 0

3 years ago

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