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Shtirlitz [24]
4 years ago
11

I have this question from my homework and it was me stumped

Mathematics
1 answer:
Diano4ka-milaya [45]4 years ago
4 0

His average was 55.0 seconds, multiply that by the number of times he ran. This will give you the total time:

55.0 * 3 = 165 total seconds.


Subtract his times for the fastest and slowest to find the time for the third one:

165 - 54.3 - 56.1 = 54.6


The third race was 54.6 seconds.

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Given: 2x + 11 = 15 Prove: x = 2 Statements Reason 1. 2x + 11 = 15 1. Given 2. 2x = 4 2. 3. X = 2 3. Division Property of Equali
wariber [46]

Answer:

Statements                       Reasons

1. 2x + 11 = 15                    1. Given

2. 2x = 4                            2. Subtraction Property of Equality

3. X = 2                              3. Division Property of Equality

Step-by-step explanation:

An equation can be solved and its solution proven using algebraic theorems and properties. To create a proof, form two columns. Label one side Statements and the other Reasons.

Begin your proof listing the any information given to you. List as the reason - Given.

Then list the next step which here would be to subtract by 11 on both side. The reason is Subtraction Property of Equality. Subtraction is the inverse of addition. Inverse axiom is another acceptable reason.

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Statements                       Reasons

1. 2x + 11 = 15                    1. Given

2. 2x = 4                            2. Subtraction Property of Equality

3. X = 2                              3. Division Property of Equality

6 0
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