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Zina [86]
3 years ago
13

To SubTract 178-135 Mentally Carmine Adds 5 To each Number Karen Adds 2 To Each Number Will Both Methods Work To find The Correc

t Answer? Why Or Why Not?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
3 0

Answer:

  Yes

Step-by-step explanation:

Both methods will work. You can add or subtract any number you wish from both numbers and the result will be the same.

___

<em>Comment on the approach</em>

By adding 5, Carmine makes the subtrahend have a units digit of 0, making the units digit of the answer easier to find.

By adding 2 to both numbers, Karen makes the minuend have a units digit of 0, so the units digit of the answer will be the 10's complement of 7. Depending on Karen's knowledge of arithmetic facts, this may be more work for her than Carmine's method is for Carmine.

Since all digits of the subtrahend are less than or equal to all digits of the minuend, no adjustment is needed and the subtraction can proceed directly.

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Alexxandr [17]

Answer:

x = log 10/log 3

Step-by-step explanation:

3^x - 4 = 6

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We take log base 3 of both sides since log_3 3^x is simply x.

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x = log_3 10

We have an answer for x, but it is a log base 3. We want log base 10.

Now we use the change of base formula.

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x = log 10/log 3

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3 years ago
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denis-greek [22]

Answer:

Slope- 5  y-int- (0,0)

Step-by-step explanation:

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3 years ago
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Mariana [72]

Answer:

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Step-by-step explanation:

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2 years ago
An angle measures 16° more than the measure of its supplementary angle. What is the measure of each angle?
Olenka [21]
82 degrees and 98 degrees


First, find the original equation

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Simplify: 180 = 2x + 16


Next, use the subtraction property of equality to subtract 16 from both sides


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Then, you can use the division property of equality to find the value of x

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Simplify: 82 = x



Now, we know that the first angle equals 82 degrees and that the second angle equals 98 degrees
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