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2 years ago

PLS HElp answer is below give me a answer for each one and a complete sentence pls il give brainiest and 5 stars

Mathematics

1 answer:

wlad13 [49]2 years ago

6 0

Answer:

1. She should use Length x Width x Height.

2. The unit of the answer is 30.

3. The volume of the box is 30 units.

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Solve by substitution. 3x-y=5 -2x+y=0

Citrus2011 [14]

In order to use substitution, you need to isolate a variable on one of the equations:

-2x+y=0
y=2x

Then you plug that equation into the other equation. Since we isolated y, we plug in 2x for y in the other equation:

3x-(2x)=5
x=5

Then plug the value you found into any equation to solve for the other variable:

3(5)-y=5
15-y=5
-y=-10
y=10

So your answers are x=5, y=10

3 0

3 years ago

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Randy divides (2x4 – 3x3 – 3x2 + 7x – 3) by (x2 – 2x + 1) as shown below. What error does Randy make?

jarptica [38.1K]

error is in constant term of quotient

4 0

4 years ago

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What is the diameter in the circle above 7 3.5 14 3.14

ira [324]

Answer:

Step-by-step explanation:

The diameter is the length from one point on the circle to another, passing through the center. The radius is the length from a point on the circle to its center, so we can always find the diameter by doubling the radius. In this case, with a radius of 7, our diameter is 7 · 2 = 14

5 0

3 years ago

David bought a motorcycle. It costs $470 plus an additional 10% sales tax. What was the total cost?

Aleks04 [339]

.1 * 470 = 47

470 + 47 = 517

5 0

3 years ago

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How do you which equation symbol to use?

Nadusha1986 [10]

Answer:

This question needs to be written better

Step-by-step explanation:

Each math symbol has words that direct u to know how/when to use them

For example:

Find the sum of 70 and 83

+- (Addition)-(Words used to say addition: Add, Sum , Plus, Increase, Total)

83+70=153

Find the difference between 83 and 70

_-(Subtraction),(Words used to say subtraction: Minus, Less, Difference, Decrease, Take Away, Deduct)

83-70=13

How many times can 2 go into 12?

÷-(Divide/Division)-(Words that are used to say Divide/Division: Quotient, Goes Into, etc.)

12÷2=6

Find the product of 6 and 7

×-(Multiplication/Multiply)-(Words that are used to say Multiplication/Multiply: Product, By, Times, Lots Of)

6×7=7

Hope this helps!

Hoodmemes~

8 0

3 years ago