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Leviafan [203]
3 years ago
11

QUESTION 4 What is the area of the square in square meters and square centimeters? 64 m² and 640,000 cm² 64 m² and 6400 cm² 6400

m² and 64 cm² 640,000 m² and 64 cm²

Mathematics
1 answer:
amm18123 years ago
6 0

Answer:

64 meters squared and 6400 centimeters squared

Step-by-step explanation:

Hope this helped. First do 8*8 for square meters then do 64 * 100 to get 6400 centimeters squared.

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How many solutions does these equations have? One, infinite or no solutions?
s2008m [1.1K]

Answer:

  • 1. 7(y + 3) = 5y+8: <u>one solution</u>

  • 2. 10 + 6x= 2(5+3x): <u>infinite solutions</u>

  • 3. 3x + 5 - x=2x + 7: <u>no solutions</u>

  • 4. 4x - 4 = 2x + 8: <u>one solution.</u>

Explanation:

<u>1. 7(y+3)=5y+8</u>

<u></u>

a)  Distributive property of multiplication over addtion:

  • 7y + 21 = 5y + 8

b) Subtraction property of equalities:

  • 7y - 5y = 8 - 21

c) Combine like terms:

  • 2y = - 13

d) Division property of division:

  • y = - 13/2

e) Conclusion: the equation has one solution.

<u>2. 10 + 6x = 2(5+3x)</u>

a) Distributive property of multiplication over addition:

  • 10 + 6x = 10 + 6x

b) Subtraction property of equality:

  • 6x - 6x = 10 - 10

c) Simplify (combine like terms)

  • 0 = 0

That is an identity, i.e. that is always true, no matter the value of x.

d) Conclusion: the equation has infinite solutions.

<u>3. 3x + 5 - x = 2x + 7</u>

a) Combine like terms:

  • 2x + 5 = 2x + 7

b) Subtraction property of equalities:

  • 2x - 2x = 7 - 5

c) Combine like terms (simplify)

  • 0 = 2

That is always false, no matter the values of x.

d) Conclusion: the equation does not have any solutions.

<u>4. 4x - 4 = 2x + 8</u>

<u></u>

a) Subtraction property of equality

  • 4x - 2x - 4 = 2x - 2x + 8

b) Combine like terms

  • 2x - 4 = 8

c) Addtiion property of equalities:

  • 2x = 8 + 4

d) Combine like terms (simplify)

  • 2x = 12

e) Division property of equalities:

  • x = 6

f) Conclusion: the equation has one solution

5 0
3 years ago
Evaluate ab + c for a = 2, b = 3, and c = 4.<br><br> 9<br><br> 10<br><br> 27
Lilit [14]

Given that a = 2, b = 3, and c = 4.

To evaluate ab+c, we will plug given values as shown below

ab+c

=2*3+4

=6+4

=10

Hence final answer is 10.

6 0
2 years ago
• Chocolate bars were sold for $2 each.
Angelina_Jolie [31]

Answer:

63

Step-by-step explanation:

1/4 of 168 is 42 which is how many Boxes of Candy they sold

42 x 1.50 = 63

3 0
2 years ago
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-3x + 12x how do I simplify that?
pav-90 [236]

-3x+12x

Divide it all by three

-x+4x

6 0
3 years ago
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I need to know the start value!!
dedylja [7]

Answer: <em>is it 4, maybe?</em>

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