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2 years ago

Compare the values of the underlined digits 6300 and 530

Mathematics

1 answer:

Paha777 [63]2 years ago

4 0

I don't know what's underline but I assume it's the 300 in 6300 and the 30 in 530 so 300>30

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3 + 2x -y =0 -3 -7y = 10x

sweet [91]

Answer:

(-1, 1)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS
Equality Properties

Algebra I

Solving systems of equations using substitution/elimination
Solving systems of equations by graphing

Step-by-step explanation:

Step 1: Define systems

3 + 2x - y = 0

-3 - 7y = 10x

Step 2: Rewrite systems

3 + 2x - y = 0

Add y to both sides: 3 + 2x = y

Step 3: Redefine systems

y = 2x + 3

-3 - 7y = 10x

Step 4: Solve for x

Substitution

Substitute in y: -3 - 7(2x + 3) = 10x
Distribute -7: -3 - 14x - 21 = 10x
Combine like terms: -14x - 24 = 10x
Add 14x on both sides: -24 = 24x
Divide 24 on both sides: -1 = x
Rewrite: x = -1

Step 5: Solve for y

Define original equation: -3 - 7y = 10x
Substitute in x: -3 - 7y = 10(-1)
Multiply: -3 - 7y = -10
Add 3 to both sides: -7y = -7
Divide -7 on both sides: y = 1

Step 6: Graph

Check the solution set.

4 0

2 years ago

Write as many equations as possible that could represent the relationship between the ages of the two children in each family de

Daniel [21]

Answer:

Step-by-step explanation:

a) Here we have:

"In Family A, the youngest child is 7 years younger than the oldest, who is 18"

Let's define:

Y = age of the youngest child.

O = age of the oldest child.

Then we know that:

Y = O - 7

O = 18

Then we can replace the second equation into the first one:

Y = 18 - 7 = 11.

b) Here we have:

"In Family B, the middle child is 5 years older than the youngest child."

Let's define:

Y = age of the youngest child.

M = age of the middle child.

Here we have only one equation:

M = Y + 5.

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3 years ago

You've got 60 homework problems to do and it took you 10 minutes to do eight of them. At that rate, how long will it take?

d1i1m1o1n [39]

10 minutes : 8 problems
x minutes : 60 problems
10 * 60/8 = 150/2 = 75 minutes for 60 problems

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3 years ago

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How is the scale factor, surface area ratio and volume ratio related?

Travka [436]

The ratio of the surface areas of similar solids is equal to the square of their scale factor and that the ratio of their volumes is equal to the cube of their scale factor.

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1 year ago

Solve logarithmic equation

Maksim231197 [3]

Answer:

x=6

Step-by-step explanation:

ln 1=0

x-5=1

x=6

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2 years ago

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