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3 years ago

6.9 + (-5) + 4.1 = I need help with this problem big time please

Mathematics

2 answers:

QveST [7]3 years ago

8 0

Answer:

Step-by-step explanation:

We need to simplify this equation:

6.9 - 5 + 4.1

The reason why there is a negative sign in between 6.9 and 5 is that + and - become negative.

There is a chart that can help you with this:

+ + = +

+ - = -

- + = -

- - = +

This will help you with BIDMAS/BEDMAS

Maru [420]3 years ago

5 0

Answer:

Step-by-step explanation:

6.9 - 5 = 1.9

1.9 + 4.1 = 6

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Sloan [31]

Answer:

h/2

Step-by-step explanation:

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2 years ago

James is six years older than lousie. Eight years from now, James will be 4 times older than loise was 4 years ago. What is the

weeeeeb [17]

Answer: 26 years.

Step-by-step explanation:

Let x = current age of Louise (in years).

Then current age of James = x+6

Eight years from now, James's age = x+6+8= x+14

4 years ago, Louise's age = x-4

According to the question

x+14 = 4(x-4)

⇒ x+14 = 4x-16

⇒ 4x-x = 16+14

⇒ 3x = 30

⇒ x= 10 = current age of Louise (in years).

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hence, the sum of the current ages is 26 years.

8 0

3 years ago

180=112+9x+5. Whats the value of X and why?

vovangra [49]

Answer:x=7

Step-by-step explanation:

180=112+9x+5

Collect like terms

180-112-5=9x

63=9x

Divide both sides by 9

63/9=9x/9

7=x

x=7

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3 years ago

What is the length of JM

Sloan [31]

Answer:

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3 years ago

Read 2 more answers

Which transformations can be used to carry ABCD onto itself? The point of

dmitriy555 [2]

Answer:

A and B

Step-by-step explanation:

For A, y=2 is the axis of vertical symmetry, meaning a reflection would map the shape onto itself.

For B, x=3 is the axis of horizontal symmetry, meaning a reflection would map the shape onto itself.

For C, a rotation of 90 degrees would make the shape taller vertically and shorter horizontally, therefore it would be wrong.

For D, a translation two units down would move all points down, even though some would need to go up, therefore it would be wrong.

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3 years ago